A method and apparatus keeps ice from interfering with the flow of cryogenic particles entrained in a flow exiting a blast nozzle during continuous operation of a particle blast system. A fluid stream having appropriate temperature, moisture content and flow rate flows through an annular passageway which surrounds the nozzle.
A particle blast apparatus comprises an interior cavity, a defrost port in fluid communication with the interior cavity, such that defrost gas is selectively introduced into the interior cavity through the defrost port; and an internal flow path extending from a source of blast media to a transport gas flow path, wherein at least a portion of the internal flow path extends through the interior cavity. A method of defrosting a particle blast apparatus that uses cryogenic materials comprises providing a particle blast apparatus comprising an interior cavity, an internal flow path extending from a source of blast media to a transport gas flow path through an interior cavity, and introducing defrost gas into the interior cavity.
A particle blast apparatus includes a metering portion, a comminutor and a feeding portion. The metering portion and comminutor may each be configured to provide uniformity in the discharge of particles. The metering portion controls the particle feed rate, and may include a rotor, which may have V or chevron shaped pockets. The comminutor includes at least one roller which may be moved between and including a position at which the gap of the comminutor is at maximum and a position at which the gap is at minimum. The metering portion may discharge particles directly into the feeding portion without a comminutor being present. The comminutor may receive particles directly from a source of blast media without a metering portion being present.
B24C 7/00 - Equipment for feeding abrasive materialControlling the flowability, constitution, or other physical characteristics of abrasive blasts
B02C 4/02 - Crushing or disintegrating by roller mills with two or more rollers
B02C 4/32 - Adjusting, applying pressure to, or controlling the distance between, milling members
B24C 3/06 - Abrasive blasting machines or devicesPlants characterised by the arrangement of the component assemblies with respect to each other movableAbrasive blasting machines or devicesPlants characterised by the arrangement of the component assemblies with respect to each other portable
F15B 15/06 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement
F16K 31/122 - Operating meansReleasing devices actuated by fluid the fluid acting on a piston
F16K 31/53 - Mechanical actuating means with toothed gearing
4.
METHOD AND APPARATUS WITH VENTING OR EXTRACTION OF TRANSPORT FLUID FROM BLAST STREAM
B05B 7/14 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
B05B 7/16 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed
B24C 5/02 - Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
5.
METHOD AND APPARATUS WITH VENTING OR EXTRACTION OF TRANSPORT FLUID FROM BLAST STREAM
A method and apparatus entrain particles in a flow of blast fluid from a flow of transport fluid with particles entrained therein, in which an effectual amount of the transport fluid is vented or extracted prior to the entrainment of the particles in the flow of blast fluid.
A method and apparatus entrain particles in a flow of blast fluid from a flow of transport fluid (4) with particles entrained therein, in which an effectual amount of the transport fluid is vented or extracted prior to the entrainment of the particles in the flow of blast fluid (6).
B24C 5/02 - Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
B24C 7/00 - Equipment for feeding abrasive materialControlling the flowability, constitution, or other physical characteristics of abrasive blasts
B05B 7/16 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed
B24C 1/00 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods
B05B 7/14 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
A method and apparatus produce an enhanced blast stream which may be directed at a workpiece. The enhanced blast stream has higher energy allowing the blast stream to remove difficult to remove coatings from substrates. A heated flow is combined with an entrained particle flow and expelled through a nozzle. The heated flow results in more energy being imparted to the coating.
A method and apparatus keeps ice from interfering with the flow of cryogenic particles entrained in a flow exiting a blast nozzle during continuous operation of a particle blast system. A fluid stream having appropriate temperature, moisture content and flow rate flows through an annular passageway which surrounds the nozzle.
B24C 1/00 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods
B05B 7/06 - Spray pistolsApparatus for discharge with one outlet orifice surrounding another approximately in the same plane
B05B 7/14 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
B05B 9/00 - Spraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour
9.
METHOD AND APPARATUS FOR MINIMIZING ICE BUILD UP WITHIN BLAST NOZZLE AND AT EXIT
A method and apparatus keeps ice from interfering with the flow of cryogenic particles entrained in a flow exiting a blast nozzle during continuous operation of a particle blast system. A fluid stream having appropriate temperature, moisture content and flow rate flows through an annular passageway which surrounds the nozzle.
B05B 7/06 - Spray pistolsApparatus for discharge with one outlet orifice surrounding another approximately in the same plane
B05B 7/14 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
A method and apparatus keeps ice from interfering with the flow of cryogenic particles entrained in a flow exiting a blast nozzle during continuous operation of a particle blast system. A fluid stream having appropriate temperature, moisture content and flow rate flows through an annular passageway which surrounds the nozzle.
A method of comminuting the size of particles of frangible blast media from each particle's respective initial size to a size smaller than a desired maximum size includes directing a flow of entrained particles toward a gap, at a first location splitting the flow into at least a first and second flow, the particles are entrained in the first flow, the first flow travels through the gap and substantially no particles are entrained in the second flow, and rejoining the second flow with the first flow at a second location downstream of and proximal to the gap.
An actuator is configured to couple with a controlled member and includes first and second pistons disposed in respective internal chambers. The first piston may be moveable between first and second positions. The second piston may be moveable between third and fourth positions. The second piston may be configured not to engage the first piston when the second piston is disposed at the third position. The second piston may be configured to move the first piston to the second position as the second piston moves from the third position to the fourth position. A resilient member may be disposed to resiliently urge the second piston toward the fourth position.
F16K 31/53 - Mechanical actuating means with toothed gearing
F15B 15/06 - Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non-rectilinear movement
B24C 3/06 - Abrasive blasting machines or devicesPlants characterised by the arrangement of the component assemblies with respect to each other movableAbrasive blasting machines or devicesPlants characterised by the arrangement of the component assemblies with respect to each other portable
B02C 4/32 - Adjusting, applying pressure to, or controlling the distance between, milling members
B02C 4/02 - Crushing or disintegrating by roller mills with two or more rollers
20.
METHOD AND APPARATUS FOR FORMING SOLID CARBON DIOXIDE
An apparatus for forming solid carbon dioxide blocks comprises a chamber with an internal cavity, a flow control valve including a variable area orifice, an actuator configured to control the area of the variable area orifice and a controller configured to vary the are of the variable area orifice while liquid carbon dioxide is being flashed to solid carbon dioxide snow through the flow control valve. A method of forming carbon dioxide blocks comprises the steps of varying the area of an orifice while flowing liquid carbon dioxide through the orifice under sufficient pressure to flash the liquid carbon dioxide to solid carbon dioxide snow.
Machines that use blast media to decontaminate various types
of surfaces, alter the properties of various types of
surfaces or to separate constituent parts; nozzles for the
foregoing; structural parts for all the foregoing.
Machines that use dry ice blast media to decontaminate
various types of surfaces, alter the properties of various
types of surfaces or to separate constituent parts; dry ice
pelletizer machines sold in connection therewith.
(1) Particle blast cleaning machines for use with dry ice media; nozzles for particle blast cleaning machines for use with dry ice media and parts for all the foregoing.
A method and apparatus produce an enhanced blast stream which may be directed at a workpiece. The enhanced blast stream has higher energy allowing the blast stream to remove difficult to remove coatings from substrates. A heated flow is combined with an entrained particle flow and expelled through a nozzle. The heated flow results in more energy being imparted to the coating.
A method and apparatus produce an enhanced blast stream which may be directed at a workpiece. The enhanced blast stream has higher energy allowing the blast stream to remove difficult to remove coatings from substrates. A heated flow is combined with an entrained particle flow and expelled through a nozzle. The heated flow results in more energy being imparted to the coating.
B24C 5/02 - Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
B24C 7/00 - Equipment for feeding abrasive materialControlling the flowability, constitution, or other physical characteristics of abrasive blasts
B05B 7/14 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
B24C 1/00 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods
B05B 7/16 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed
A method and apparatus produce an enhanced blast stream which may be directed at a workpiece. The enhanced blast stream has higher energy allowing the blast stream to remove difficult to remove coatings from substrates. A heated flow is combined with an entrained particle flow and expelled through a nozzle. The heated flow results in more energy being imparted to the coating.
A particle blast apparatus or system entrains blast media particles from a particle source into a transport fluid which already has blast media particles entrained therein. The system may have, prior thereto, entrained blast media particles into the transport fluid which at that time did not already have blast media particles entrained therein. The particle types may be dissimilar, such as dry ice particles and abrasive media particles.
B24C 7/00 - Equipment for feeding abrasive materialControlling the flowability, constitution, or other physical characteristics of abrasive blasts
B05B 1/00 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
B05B 7/14 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
B05B 12/14 - Arrangements for controlling deliveryArrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials to a single spray outlet
B24C 1/00 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods
A particle blast apparatus includes a metering portion, a comminutor and a feeding portion. The metering portion and comminutor may each be configured to provide uniformity in the discharge of particles. The metering portion controls the particle feed rate, and may include a rotor, which may have V or chevron shaped pockets. The comminutor includes at least one roller which may be moved between and including a position at which the gap of the comminutor is at maximum and a position at which the gap is at minimum. The metering portion may discharge direction into the feeding portion without a comminutor being present. The comminutor may receive particles directly from a source of blast media without a metering portion being present.
B24C 3/00 - Abrasive blasting machines or devicesPlants
B24C 7/00 - Equipment for feeding abrasive materialControlling the flowability, constitution, or other physical characteristics of abrasive blasts
B24C 9/00 - Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
B02C 4/00 - Crushing or disintegrating by roller mills
B02C 23/00 - Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in groups or not specially adapted to apparatus covered by one only of groups
A particle blast apparatus includes a metering portion, a comminutor and a feeding portion. The metering portion and comminutor may each be configured to provide uniformity in the discharge of particles. The metering portion controls the particle feed rate, and may include a rotor, which may have V or chevron shaped pockets. The comminutor includes at least one roller which may be moved between and including a position at which the gap of the comminutor is at maximum and a position at which the gap is at minimum. The metering portion may discharge direction into the feeding portion without a comminutor being present. The comminutor may receive particles directly from a source of blast media without a metering portion being present.
An actuator is configured to couple with a controlled member and includes first and second pistons disposed in respective internal chambers. The first piston may be moveable between first and second positions. The second piston may be moveable between third and fourth positions. The second piston may be configured not to engage the first piston when the second piston is disposed at the third position. The second piston may be configured to move the first piston to the second position as the second piston moves from the third position to the fourth position. A resilient member may be disposed to resiliently urge the second piston toward the fourth position.
B24C 5/00 - Devices or accessories for generating abrasive blasts
B24C 7/00 - Equipment for feeding abrasive materialControlling the flowability, constitution, or other physical characteristics of abrasive blasts
B24C 9/00 - Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
B65G 65/48 - Devices for emptying otherwise than from the top using other rotating means, e.g. rotating pressure sluices in pneumatic systems
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
An apparatus is described which introduces cryogenic particles received from a source of particles, having a first pressure, into a moving transport fluid, having a second pressure, for ultimate delivery to a workpiece or target as particles entrained in a transport fluid flow which seals between the source of particles and the transport fluid flow.
Machines that use blast media to decontaminate various types
of surfaces, alter the properties of various types of
surfaces or to separate constituent parts; nozzles for the
foregoing; structural parts for all the foregoing.
Machines that use blast media to decontaminate various types
of surfaces, alter the properties of various types of
surfaces or to separate constituent parts; nozzles for the
foregoing; structural parts for all the foregoing.
Machines that use blast media to decontaminate various types
of surfaces, alter the properties of various types of
surfaces or to separate constituent parts; nozzles for the
foregoing; structural parts for all the foregoing.
(1) Machines that use dry ice blast media to decontaminate various types of surfaces, alter the properties of various types of surfaces and to separate constituent parts, nozzles and structural parts for all the foregoing
(1) Machines that use blast media to decontaminate various types of surfaces, alter the properties of various types of surfaces and to separate constituent parts, nozzles and structural parts for all the foregoing
(1) Machines that use blast media to decontaminate various types of surfaces, alter the properties of various types of surfaces or to separate constituent parts, nozzles for the foregoing, structural parts for all the foregoing
Machines that use dry ice blast media to decontaminate various types of surfaces, alter the properties of various types of surfaces or to separate constituent parts; and dry ice pelletizer machines sold in connection therewith
Machines that use blast media to decontaminate various types of surfaces, alter the properties of various types of surfaces or to separate constituent parts; nozzles for the foregoing; structural parts for all the foregoing
Machines that use blast media to decontaminate various types of surfaces, alter the properties of various types of surfaces or to separate constituent parts; nozzles for the foregoing; structural parts for all the foregoing
Machines that use dry ice blast media to decontaminate various types of surfaces, alter the properties of various types of surfaces or to separate constituent parts; nozzles for the foregoing; structural parts for all the foregoing
(1) Machines that use blast media to decontaminate various types of surfaces, alter the properties of various types of surfaces or to separate constituent parts, nozzles for the foregoing, structural parts for all the foregoing
Machines that use blast media to decontaminate various types of surfaces, alter the properties of various types of surfaces or to separate constituent parts; nozzles for the foregoing; structural parts for all the foregoing
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Computer software and computer hardware for monitoring,
diagnosing or controlling the operation of machines that
manufacture or propel solid cryogenic material, either
onboard the machines, on-site or remotely; computer software
and computer hardware for providing service, preventative
maintenance or diagnostic feedback alerts regarding the
operation of machines that manufacture or propel solid
cryogenic material, either on board the machines, on-site or
remotely. Remote monitoring of the operation of machines that
manufacture or propel solid cryogenic material, providing
information which enables users to maintain, optimize
operation or diagnose potential operational issues of
machines that manufacture or propel solid cryogenic
material; providing technology via a website that enables
users to access information to maintain, optimize operation
or diagnose potential operational issues of machines that
manufacture or propel solid cryogenic material; providing
technical support to customers by telephone, electronic
communication and on-line.
Machines that use blast media to decontaminate various types
of surfaces, alter the properties of various types of
surfaces or to separate constituent parts, with or without
controls for integrating its operation with and for
communicating with external systems; parts for all the
foregoing.
A comminutor reduces the size of particles of frangible blast media from each particle's respective initial size to a size smaller than a desired maximum size. The frangible blast media may be entrained in a flow of transport gas. The comminutor includes an inlet and an outlet, both in fluid communication with an internal flow passageway. The internal flow passageway includes a first intermediate passageway which comprise the gap defined by two rotating rollers and a second intermediate passageway which includes an inlet disposed proximal the gap, extending in an upstream direction therefrom.
A comminutor reduces the size of particles of frangible blast media from each particle's respective initial size to a size smaller than a desired maximum size. The frangible blast media may be entrained in a flow of transport gas. The comminutor includes an inlet and an outlet, both in fluid communication with an internal flow passageway. The internal flow passageway includes a first intermediate passageway which comprise the gap defined by two rotating rollers and a second intermediate passageway which includes an inlet disposed proximal the gap, extending in an upstream direction therefrom.
Machines that use blast media to decontaminate various types of surfaces, alter the properties of various types of surfaces or to separate constituent parts, with or without controls for integrating its operation with and for communicating with external systems; parts for all the foregoing
Machines that use blast media to decontaminate various types
of surfaces, alter the properties of various types of
surfaces or to separate constituent parts; nozzles for the
foregoing; parts for all the foregoing. Equipment for manufacturing dry ice; parts for all the
foregoing.
42 - Scientific, technological and industrial services, research and design
Goods & Services
remote monitoring of the operation of machines that manufacture or propel solid cryogenic material, providing information which enables users to maintain, optimize operation or diagnose potential operational issues of machines that manufacture or propel solid cryogenic material; providing a website featuring technology that enables users to access information to maintain, optimize operation or diagnose potential operational issues of machines that manufacture or propel solid cryogenic material; providing support to customer by telephone, electronic communication and on-line
09 - Scientific and electric apparatus and instruments
Goods & Services
Computer software and computer hardware for monitoring, diagnosing or controlling the operation of machines that manufacture or propel solid cryogenic material, either onboard the machines, on-site or remotely; computer software and computer hardware for providing service, preventative maintenance or diagnostic feedback alerts regarding the operation of machines that manufacture or propel solid cryogenic material, either on board the machines, on-site or remotely
(1) Particle blast machines, namely machines that use blast media to decontaminate various types of surfaces, alter the properties of various types of surfaces or to separate constituent parts, nozzles, and parts for the foregoing
(2) Equipment for manufacturing dry ice and parts therefor
Machines that use blast media to decontaminate various types of surfaces, alter the properties of various types of surfaces or to separate constituent parts; nozzles for the foregoing; structural parts for all the foregoing [ machines and apparatus for manufacturing dry ice; structural parts for all the foregoing ]
An apparatus (10) is described which introduces cryogenic particles received from a source of particles (4), having a first pressure, into a moving transport fluid, having a second pressure, for ultimate delivery to a workpiece or target as particles entrained in a transport fluid flow (8), which appartus seals between the source of particles and the transport fluid flow.
A feeder assembly transports blast media from a source of media into a tlow of transport gas. The feeder assembly has a rotor haying a peripheral surface and a cavity. A seal is disposed adjacent at least a portion of the peripheral surface. A piston disposed partially in the cavity. An inlet connected to a transport fluid source. A transport fluid flow path being defined by the seal and the piston, has an entrance and an exit. The entrance being in fluid communication with the inlet and the exit being in fluid communication with an outlet. A pressure chamber defined by the piston and a respective portion of the one cavity wall and the cavity bottom. The piston and the seal configured such that pressure within the pressure chamber controls how much sealing force with which the first surface is urged against the peripheral surface.
A fragmenter provides fragmentation of frangible blast media entrained in a subsonic flow. The flow is converged prior to reaching a fragmenting element, and the convergence may be followed by a constant cross-section area section. Immediately upstream and downstream of the fragmenting element may be an expansion area to reduce the potential of water ice buildup.
A fragmenter provides fragmentation of frangible blast media entrained in a subsonic flow. The flow is converged prior to reaching a fragmenting element, and the convergence may be followed by a constant cross-section area section. Immediately upstream and downstream of the fragmenting element may be an expansion area to reduce the potential of water ice buildup.
A fragmenter provides fragmentation of frangible blast media entrained in a subsonic flow. The flow is converged prior to reaching a fragmenting element, and the convergence may be followed by a constant cross-section area section. Immediately upstream and downstream of the fragmenting element may be an expansion area to reduce the potential of water ice buildup.
B24C 5/02 - Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
B02C 19/00 - Other disintegrating devices or methods
B24C 7/00 - Equipment for feeding abrasive materialControlling the flowability, constitution, or other physical characteristics of abrasive blasts
B02C 23/16 - Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
63.
METHOD AND APPARATUS FOR FORMING SOLID CARBON DIOXIDE
Liquid carbon dioxide is transformed into solid snow and compressed into strands. A shroud defines an insulating plenum/volume surrounding a forming chamber, which reduces heat transfer to the forming chamber. A faction of gas phase flow resulting from the process fills the insulating plenum/volume, reducing heat transfer further.
Carbon dioxide or any suitable material is dispensed by a system into one or more containers. An impeller within a transport produces carbon dioxide particles at one or more desired sizes. Particles sized to be sufficiently small enough to still maintain particle integrity are produced and advance through the transport, while particles of insufficient integrity are directed toward a divert and a diverter prevents the insufficient particles from being misdirected into a separate transport passageway.
An apparatus (2) for forming one or more blocks (108) from carbon dioxide particle is configured to allow changing between precise thicknesses with very little downtime, utilizing both weight based and volumetric dosing. A spacer supports the lower ejection piston (74) during block forming, with a shuttle (102) discharging particles into the forming chamber while simultaneously pushing one or more previously formed blocks (108) on to a conveyor. In one embodiment, the shuttle dosing cavity (104) has a volume that is greater than the volume of the forming chamber volume, which allows more pellets, volumetrically, to be dosed into the dosing cavity (104) than the volume of the forming cavity.
B30B 11/04 - Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with a fixed mould
B30B 15/02 - DiesInserts therefor or mountings thereofMoulds
A particle blast apparatus transport is capable of generating granular sized particles and delivering them without substantial storage to a single hose feeder assembly. The apparatus is configured to be used with solid blocks of cryogenic material, such as carbon dioxide, and with individual pellets of such material.
The outer periphery of a pelletizer barrel is devoid of obstructions allowing the number, location and size of vents to be maximized, thereby improving the flow rate of gas being vented from the interior chamber, allowing increased efficiency in and of production of pellets. Screens on the vents are disposed adjacent the inner surface of the barrel sidewall, reducing the volume within which snow can accumulate, thereby avoiding reduction in the venting of gas from the interior chamber resulting from snow accumulation in the vent passageways.
An apparatus for forming a block from carbon dioxide particle is configured to allow changing between precise thicknesses with very little downtime, utilizing both weight based and volumetric dosing. A spacer supports the lower ejection piston during block forming, with a shuttle discharging particles into the forming chamber while simultaneously pushing a previously formed block on to a conveyor. In one embodiment, the shuttle dosing cavity has a volume that is greater than the volume of the forming chamber volume, which allows more pellets, volumetrically, to be dosed into the dosing cavity than the volume of the forming cavity.
B30B 11/02 - Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses using a ram exerting pressure on the material in a moulding space
An apparatus for forming a block from carbon dioxide particle is configured to allow changing between precise thicknesses with very little downtime, utilizing both weight based and volumetric dosing. A spacer supports the lower ejection piston during block forming, with a shuttle discharging particles into the forming chamber while simultaneously pushing a previously formed block on to a conveyor. In one embodiment, the shuttle dosing cavity has a volume that is greater than the volume of the forming chamber volume, which allows more pellets, volumetrically, to be dosed into the dosing cavity than the volume of the forming cavity.
A media blast nozzle for cleaning a surface with compressed air and ejected particles of a sublimating blast media comprises a media size changer to change a size of the blast media particles. The media blast nozzle has an entrance and an exit and a throat therebetween. A converging passageway extends from the entrance to the throat, and a diverging passageway extends from the throat to the exit. The media size changer is operably located in the diverging passageway and has one or more media size changing members to fragment moving blast media particles by impact therewith. The blast media particles are provided to the media blast nozzle in an initial consistent size, and when a moving blast media particle impacts with one or more media size changing members, two or more fragments of reduced size are created from the initial blast media particle for ejection from the nozzle device. The media size changer can be adjusted by an operator to eject whole particles or fragments of particles. The size of the ejected particle fragments can also be adjusted with the media size change
B05B 1/12 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means capable of producing different kinds of discharge, e.g. either jet or spray
B05B 1/34 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
B24C 1/00 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods
A media blast nozzle for cleaning a surface with compressed air and ejected particles of a sublimating blast media comprises a media size changer to change a size of the blast media particles. The media blast nozzle has an entrance and an exit and a throat therebetween. A converging passageway extends from the entrance to the throat, and a diverging passageway extends from the throat to the exit. The media size changer is operably located in the diverging passageway and has one or more media size changing members to fragment moving blast media particles by impact therewith. The blast media particles are provided to the media blast nozzle in an initial consistent size, and when a moving blast media particle impacts with one or more media size changing members, two or more fragments of reduced size are created from the initial blast media particle for ejection from the nozzle device. The media size changer can be adjusted by an operator to eject whole particles or fragments of particles. The size of the ejected particle fragments can also be adjusted with the media size change
A media blast nozzle for cleaning a surface with compressed air and ejected particles of a sublimating blast media comprises a media size changer to change a size of the blast media particles. The media blast nozzle has an entrance and an exit and a throat therebetween. A converging passageway extends from the entrance to the throat, and a diverging passageway extends from the throat to the exit. The media size changer is operably located in the diverging passageway and has one or more media size changing members to fragment moving blast media particles by impact therewith. The blast media particles are provided to the media blast nozzle in an initial consistent size, and when a moving blast media particle impacts with one or more media size changing members, two or more fragments of reduced size are created from the initial blast media particle for ejection from the nozzle device. The media size changer can be adjusted by an operator to eject whole particles or fragments of particles. The size of the ejected particle fragments can also be adjusted with the media size change
A particle blast apparatus has a pivoting hopper, allowing the hopper exit to move from or between a first position at which the exit is aligned with the feeder entrance to a second position where the hopper exit is not aligned as such. The hopper may emptied or cleared in this manner. The hopper may be provided with a device configured to impart energy to the hopper while the hopper exit is located at the second position.
A block former comprises a portable device for compression forming of carbon dioxide particles into a non-homogenous block of carbon dioxide. The formed non-homogenous block can be used with carbon dioxide blasters that shave the formed block, and then eject the carbon dioxide shavings into a pneumatic jet as a blast media for cleaning surfaces. The block former further comprises a control system comprising a logic system of switches, valves, and timers to perform a timed sequence of events to form loose carbon dioxide particles into a non-homogenous block, to release compression on the block, and to eject the formed block from the block former. A single compression surface is provided to compress the carbon dioxide particles block, to release pressure on the block, and to eject the block from the block former device. The carbon dioxide particles used to form the non-homogeneous block can vary in size from snow to chunks or pellets.
A block former comprises a portable device for compression forming of carbon dioxide particles into a non-homogenous block of carbon dioxide. The formed non- homogenous block can be used with carbon dioxide blasters that shave the formed block, and then eject the carbon dioxide shavings into a pneumatic jet as a blast media for cleaning surfaces. The block former further comprises a control system comprising a logic system of switches, valves, and timers to perform a timed sequence of events to form loose carbon dioxide particles into a non-homogenous block, to release compression on the block, and to eject the formed block from the block former. A single compression surface is provided to compress the carbon dioxide particles block, to release pressure on the block, and to eject the block from the block former device. The carbon dioxide particles used to form the non-homogeneous block can vary in size from snow to chunks or pellets.
(1) Particle blast cleaning machines; nozzles for particle blast cleaning machines and parts for all the foregoing.
(2) Equipment for the manufacture of dry ice media used in particule blast cleaning machines.
