A method includes: extruding a continuous web of plastics material from an extruder of a hose making apparatus; helically winding the extruded web about a mandrel or at least one rotating rod of the hose making apparatus to form a wall of the hose about a central axis of the hose; extruding a continuous bead of plastics material to have a cross-section that defines a lumen at a location within the cross-section; cooling the extruded bead sufficiently to cool the plastics material adjacent the location within the cross-section of the extruded bead to cause the lumen to retain its size and shape within the cross-section; re-heating the extruded bead sufficiently to cause outer surface portions of the plastics material of the extruded bead to become molten; and helically winding the extruded bead onto and about an external surface of the wall to provide the wall a support helix.
A61M 39/08 - TubesStorage means specially adapted therefor
A61M 16/00 - Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators Tracheal tubes
B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
B29C 48/03 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor characterised by the shape of the extruded material at extrusion
B29C 53/58 - Winding and joining, e.g. winding spirally helically
B29C 53/62 - Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels rotatable about the winding axis
B29C 53/78 - Winding and joining, e.g. winding spirally helically using profiled sheets or strips
A method of forming a flexible, stretchable, crush resistant axially extending hose includes: providing coils entirely of thermoplastic material to form a continuous and hollow helix; providing a thin, narrow, elongate web of thermoplastic material that extends between adjacent coils of the helix and has edge regions welded to adjacent ones of the coils to form a single continuous wall with the web having a centrally located fold situated between adjacent ones of the coils; and subjecting the hose to an annealing process while axially compressing the hose so that molecules of the thermoplastic material forming the coils of the helix and the thin elongate web are relaxed such that stress is substantially absent from the hose when the coils of the helix are close together.
Unwinding a portion of a support helix that comprises a heating wire from a wall of a hose at an end of the hose; sleeving a length of heatshrink tubing at least partly onto the unwound portion of the support helix; heating the heatshrink tubing to shrink onto at least part of the unwound portion of the support helix; and at an end of the unwound portion, directly connecting the heating wire to an electrical contact of an electrical connector.
A respiratory humidification device includes: a casing; a separator wall to divide an interior space into filling and humidification chambers, wherein a bottom edge of the separator wall leaves a space between it and the casing bottom to define a passage allowing water to flow atop the casing bottom between the chambers, and enabling the water level to rise enough to block the passage to prevent respiratory gas from passing therethrough; a valve and float within the filling chamber to control water flow into the filling chamber to prevent the water level from rising higher than a threshold; and wherein an outer wall of the casing and the separator wall cooperate with the water surface within the humidification chamber to define an elongate tube-like pathway through which respiratory gas proceeds along a path extending generally parallel to the water surface within the humidification chamber to be humidified.
An extensible-retractable helically reinforced hose is formed by helically wrapping a freshly extruded bead of thermoplastic material about a rotating mandrel to form a helical array of spaced reinforcing coils, and by helically wrapping a freshly extruded thin yet wide web of thermoplastic material so edge regions of the wide web are placed onto and bond continuously with the peripheries of each adjacent pair of the reinforcing coils, with a leading edge region of each new wrap of the web overlying and bonding to a trailing edge region of a prior web wrap. Central portions of each web wrap extend radially inwardly and are sandwiched between adjacent reinforcing coils when the hose is retracted to a minimal axial length.
A method of forming a hose includes: extruding a web of plastics material from a first extruder; helically winding the extruded web about a mandrel or at least one rotating rod to form a wall of the hose; feeding an electrical wire into a second extruder; extruding a bead of plastics material around the electrical wire from the second extruder, wherein the first electrical wire is positioned at a first location within a cross-section of the bead that comprises a bonding surface; cooling the bead to cool the plastics material adjacent the first location to prevent migration of the first electrical wire from the first location; re-heating the first bonding surface to cause the plastics material of the bonding surface to become molten; and helically winding the bead onto the hose to put the bonding surface into contact with, and to cause bonding with, the wall of the hose.
F16L 11/12 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
B29C 48/15 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
B29C 48/16 - Articles comprising two or more components, e.g. co-extruded layers
B29C 53/60 - Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
A method of forming a hose includes: extruding a web of plastics material from a first extruder; helically winding the extruded web about a mandrel or at least one rotating rod to form a wall of the hose; feeding an electrical wire into a second extruder; extruding a bead of plastics material around the electrical wire from the second extruder, wherein the first electrical wire is positioned at a first location within a cross-section of the bead that comprises a bonding surface; cooling the bead to cool the plastics material adjacent the first location to prevent migration of the first electrical wire from the first location; re-heating the first bonding surface to cause the plastics material of the bonding surface to become molten; and helically winding the bead onto the hose to put the bonding surface into contact with, and to cause bonding with, the wall of the hose.
B29C 48/09 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
B29C 48/15 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
A method of forming a hose includes: extruding a web of plastics material from a first extruder; helically winding the extruded web about a mandrel or at least one rotating rod to form a wall of the hose; feeding an electrical wire into a second extruder; extruding a bead of plastics material around the electrical wire from the second extruder, wherein the first electrical wire is positioned at a first location within a cross-section of the bead that comprises a bonding surface; cooling the bead to cool the plastics material adjacent the first location to prevent migration of the first electrical wire from the first location; re-heating the first bonding surface to cause the plastics material of the bonding surface to become molten; and helically winding the bead onto the hose to put the bonding surface into contact with, and to cause bonding with, the wall of the hose.
A method of forming a hose includes: extruding a web of plastics material from a first extruder; helically winding the extruded web about a mandrel or at least one rotating rod to form a wall of the hose; feeding an electrical wire into a second extruder; extruding a bead of plastics material around the electrical wire from the second extruder such that the extruded bead includes the electrical wire at a location within a cross-section of the extruded bead; cooling the extruded bead to cool the plastics material adjacent the location to prevent migration of the electrical wire away from the location; re-heating the extruded bead to cause outer surface portions of the plastics material of the extruded bead to become molten; and helically winding the extruded bead onto and about an external surface of the wall to provide the wall a support helix that incorporates the electrical wire.
A respiratory humidification device includes: a casing; a separator wall to divide an interior space into filling and humidification chambers, wherein a bottom edge of the separator wall leaves a space between it and the casing bottom to define a passage allowing water to flow atop the casing bottom between the chambers, and enabling the water level to rise enough to block the passage to prevent respiratory gas from passing therethrough; a valve and float within the filling chamber to control water flow into the filling chamber to prevent the water level from rising higher than a threshold; and wherein an outer wall of the casing and the separator wall cooperate with the water surface within the humidification chamber to define an elongate tube-like pathway through which respiratory gas proceeds along a path extending generally parallel to the water surface within the humidification chamber to be humidified.
A respiratory humidification device includes: a casing; a separator wall to divide an interior space into filling and humidification chambers, wherein a bottom edge of the separator wall leaves a space between it and the casing bottom to define a passage allowing water to flow atop the casing bottom between the chambers, and enabling the water level to rise enough to block the passage to prevent respiratory gas from passing therethrough; a valve and float within the filling chamber to control water flow into the filling chamber to prevent the water level from rising higher than a threshold; and wherein an outer wall of the casing and the separator wall cooperate with the water surface within the humidification chamber to define an elongate tube-like pathway through which respiratory gas proceeds along a path extending generally parallel to the water surface within the humidification chamber to be humidified.
A respiratory humidification device includes: a casing; a separator wall to divide an interior space into filling and humidification chambers, wherein a bottom edge of the separator wall leaves a space between it and the casing bottom to define a passage allowing water to flow atop the casing bottom between the chambers, and enabling the water level to rise enough to block the passage to prevent respiratory gas from passing therethrough; a valve and float within the filling chamber to control water flow into the filling chamber to prevent the water level from rising higher than a threshold; and wherein an outer wall of the casing and the separator wall cooperate with the water surface within the humidification chamber to define an elongate tube-like pathway through which respiratory gas proceeds along a path extending generally parallel to the water surface within the humidification chamber to be humidified.
17 - Rubber and plastic; packing and insulating materials
Goods & Services
(1) Medical ventilator tubing, tubing connectors and fittings; medical tubing, connectors and fittings for drainage, transfusion, administering drugs, anesthesia, catheter, respiratory, sleep apnea, ventilator and other medical and customized medical purposes
(2) Flexible tubing, tubing connectors and fittings for use with flexible tubing and tubing connectors, all made of plastic, silicone, ethylene vinyl acetate (EVA), polypropylene (PP), polyethylene (PE) and other customized materials being thermoplastic elastomers (TPE), engineered resins, polymers and copolymers, and blends of these materials, all used for transport of liquids and biologicals for use in the pharmaceutical and medical industries
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Medical ventilator tubing, tubing connectors and fittings; medical tubing, connectors and fittings for drainage, transfusion, administering drugs, anesthesia, catheter, respiratory, sleep apnea, ventilator and other medical and customized medical purposes. Flexible tubing, tubing connectors and fittings for use with such goods, all made of plastic, silicone, ethylene vinyl acetate (EVA), polypropylene (PP), polyethylene (PE) and other customized materials being thermoplastic elastomers (TPE), engineered resins, polymers and copolymers, and blends of these materials, all used for transport of liquids and biologicals for use in the pharmaceutical and medical industries.
Helically reinforced, flexible tubing or hose is formed from continuously extruded thermoplastic material helically circumferentially wound at a wrapping station around an array of bearing-supported rods that are concurrently but individually turned and are adjustably canted relative to an imaginary center axis. The tubing or hose being formed has a continuous reinforcing rib helically wound therearound and continuously integrally connected thereto. The resulting tubing or hose may be transversely severed at intervals along its length to provide discrete lengths of hose that are annealed while axially compressed to relieve stress.
F16L 11/12 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Medical ventilator tubing, tubing connectors and fittings; medical tubing, connectors and fittings for drainage, transfusion, administering drugs, anesthesia, catheter, respiratory, sleep apnea, ventilator and other medical and customized medical purposes Flexible tubing, tubing connectors and fittings for use with such goods, all made of plastic, silicone, ethylene vinyl acetate (EVA), polypropylene (PP), polyethylene (PE) and other customized materials being thermoplastic elastomers (TPE), engineered resins, polymers and copolymers, and blends of these materials, all used for transport of liquids and biologicals for use in the pharmaceutical and medical industries
40 - Treatment of materials; recycling, air and water treatment,
35 - Advertising and business services
39 - Transport, packaging, storage and travel services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Assembly of custom medical tubing products for others; custom extrusion and injection molding services in the field of medical tubing, connectors and fittings Business project management services for others in the field of medical tubing, connectors and fittings, and providing configuration data and information regarding the OEM requirements for medical tubing product; distributorship services in the field of medical tubing products; value-added reseller services, namely, distributorship services all in the field of OEM medical tubing, connectors and fittings Packaging medical tubing articles for transportation Research, development, and custom design of products in the field of medical tubing, connectors and fittings; product development in the field of medical tubing, connectors and fittings
A method of continuously forming an axially extensible and retractable hose comprising: continuously forming an axially extending helix with axially spaced reinforcing coils from extruded thermoplastic material having a uniform cross-section along its length; and continuously bridging between an adjacent pair of the reinforcing coils with a continuous web of extruded thermoplastic material of substantially uniform width and relatively thin cross-section to form a continuous, helically extending sidewall, with the web having one of two opposite edge regions bonded continuously to a relatively flat outer bonding surface of a radially outwardly located portion of one of the adjacent pair of reinforcing coils, with the web having the other of the edge regions bonded continuously to a relatively flat inner bonding surface of a radially inwardly located portion of the other of the pair of reinforcing coils, and with the edge regions continuously radially separated from each other by the helix.
F16L 11/24 - Hoses, i.e. flexible pipes wound from strips or bands
B29C 48/12 - Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
B29C 48/03 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor characterised by the shape of the extruded material at extrusion
B29C 48/154 - Coating solid articles, i.e. non-hollow articles
F16L 11/112 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements embedded in the wall
B32B 37/14 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
B32B 37/15 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
F16L 11/115 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements not embedded in the wall
An extensible-retractable helically reinforced hose is formed by helically wrapping a freshly extruded bead of thermoplastic material about a rotating mandrel to form a helical array of spaced reinforcing coils, and by helically wrapping a freshly extruded thin yet wide web of thermoplastic material so edge regions of the wide web are placed onto and bond continuously with the peripheries of each adjacent pair of the reinforcing coils, with a leading edge region of each new wrap of the web overlying and bonding to a trailing edge region of a prior web wrap. Central portions of each web wrap extend radially inwardly and are sandwiched between adjacent reinforcing coils when the hose is retracted to a minimal axial length.
A respiratory hose assembly for the use of respiratory gases for a patient in treating various medical conditions is present. A heated respiratory hose assembly is disclosed that includes a pair of heated hoses and various fittings to convey respiratory gases in a closed circuit between a medical device, such as a ventilator or CPAP device, and a patient. Such a hose assembly may be used in a medical environment, such as a hospital or a non-medical environment such as a patient's home. Such a hose assembly may incorporate a relatively minimal set of components to reduce opportunities for errors in assembling those components, as well as connecting various sensors thereto, as part of preparing the hose assembly for use.
An undermold coupling to couple a hose to a hose fitting includes: a tubular portion to be inserted into a hose interface of the hose fitting; threads formed on an inner surface of the tubular portion to engage a support helix on an end of the hose as a set of threads; and a first grating comprising a first plurality of elongate portions to intermesh with a corresponding second plurality of elongate portions of a second grating of the hose interface, wherein the first plurality of elongate portions extend into a second plurality of slots defined by the second plurality of elongate portions, and the second plurality of elongate portions extend into a first plurality of slots defined by the first plurality of elongate portions.
A61M 16/10 - Preparation of respiratory gases or vapours
B29C 48/03 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor characterised by the shape of the extruded material at extrusion
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
F16L 15/00 - Screw-threaded jointsForms of screw-threads for such joints
F16L 33/24 - Arrangements for connecting hoses to rigid membersRigid hose-connectors, i.e. single members engaging both hoses with parts screwed directly on or into the hose
A respiratory hose assembly for the use of respiratory gases for a patient in treating various medical conditions is present. A heated respiratory hose assembly is disclosed that includes a pair of heated hoses and various fittings to convey respiratory gases in a closed circuit between a medical device, such as a ventilator or CPAP device, and a patient. Such a hose assembly may be used in a medical environment, such as a hospital or a non-medical environment such as a patient's home. Such a hose assembly may incorporate a relatively minimal set of components to reduce opportunities for errors in assembling those components, as well as connecting various sensors thereto, as part of preparing the hose assembly for use.
A respiratory hose assembly for the use of respiratory gases for a patient in treating various medical conditions is present. A heated respiratory hose assembly is disclosed that includes a pair of heated hoses and various fittings to convey respiratory gases in a closed circuit between a medical device, such as a ventilator or CPAP device, and a patient. Such a hose assembly may be used in a medical environment, such as a hospital or a non-medical environment such as a patient's home. Such a hose assembly may incorporate a relatively minimal set of components to reduce opportunities for errors in assembling those components, as well as connecting various sensors thereto, as part of preparing the hose assembly for use.
Helically winding an extruded web to form a wall of a heated hose about a central axis, extruding a bead of plastics material around a heating wire such that the extruded bead comprises the heating wire at a first location within a cross-section of the extruded bead, helically winding the extruded bead onto the wall of the hose to provide a support helix, and exerting tension on the heating wire to draw down the heating wire toward the central axis such that the heating wire migrates radially inward from the first location to a second location within the cross-section of the extruded bead.
B29C 53/58 - Winding and joining, e.g. winding spirally helically
B29C 53/62 - Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels rotatable about the winding axis
B29C 53/78 - Winding and joining, e.g. winding spirally helically using profiled sheets or strips
B29C 48/03 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor characterised by the shape of the extruded material at extrusion
B29C 48/09 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
A61M 16/10 - Preparation of respiratory gases or vapours
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
F16L 15/00 - Screw-threaded jointsForms of screw-threads for such joints
F16L 33/24 - Arrangements for connecting hoses to rigid membersRigid hose-connectors, i.e. single members engaging both hoses with parts screwed directly on or into the hose
A method of continuously forming an axially extensible and retractable hose comprising the steps of continuously forming an axially extending helix with axially spaced reinforcing coils from extruded thermoplastic material having a uniform cross-section along its length; and continuously bridging between an adjacent pair of the reinforcing coils with a continuous web of extruded thermoplastic material of substantially uniform width and relatively thin cross-section to form a continuous, helically extending sidewall, with the web having one of two opposite edge regions bonded continuously to a relatively flat outer bonding surface of a radially outwardly located portion of one of the adjacent pair of reinforcing coils, with the web having the other of the edge regions bonded continuously to a relatively flat inner bonding surface of a radially inwardly located portion of the other of the pair of reinforcing coils, and with the edge regions continuously radially separated from each other by the helix.
F16L 11/24 - Hoses, i.e. flexible pipes wound from strips or bands
B32B 37/14 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
B32B 37/15 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)
B29C 47/02 - incorporating preformed parts or layers, e.g. extrusion moulding around inserts or for coating articles
F16L 11/115 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements not embedded in the wall
Flexible tubing or hose is formed from continuously extruded thermoplastic material helically circumferentially wound at a wrapping station around an array of bearing-supported rods that are concurrently but individually turned and are canted relative to an imaginary central axis. The tubing or hose is formed to have a continuous reinforcing rib helically wound therearound and continuously integrally connected thereto. The positions of the rods are progressively altered during formation of at least a contiguous portion of the tubing or hose, causing the resulting contiguous portion to exhibit a progressive continuous change in diameter. The resulting tubing or hose may be transversely severed at intervals along its length, and may be flattened to form cuffs near where severed. A selected portion of the tubing or hose, which may or may not at least partially coincide with the contiguous portion, may be axially compressed and annealed to relieve stress therein.
F16L 11/12 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
Helically reinforced, flexible tubing or hose is formed from continuously extruded thermoplastic material helically circumferentially wound at a wrapping station around an array of bearing-supported rods that are concurrently but individually turned and are canted relative to an imaginary center axis. The tubing or hose being formed has a continuous reinforcing rib helically wound therearound and continuously integrally connected thereto. The positions of the rods are progressively altered during formation of at least a contiguous portion of the length of tubing or hose, causing the resulting tubing or hose portion to exhibit a progressive continuous change in diametrical size. The resulting tubing or hose may be transversely severed at intervals along its length, and may be flattened to form cuffs near where severed.
F16L 11/12 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
F16L 11/16 - Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands
An extruded bead of thermoplastics material and an extruded tape-like web of thermoplastics material are wrapped in a coordinated manner around a rotating mandrel to continuously form a corrugated, helically reinforced, uniquely constructed “stretch hose” having a thread-like exterior appearance dominated by the web extending in an inclined spiral as it bridges from an outer diameter of each reinforcing coil to an inner diameter of the next-formed reinforcing coil. When the hose is axially compressed, the thin web-defined wall that connects each adjacent pair of reinforcing coils advantageously has one portion that bends or folds radially outwardly, and another portion that bends or folds radially inwardly. Discrete lengths of the hose are treated to minimize stress, to reset memory, and to greatly enhance hose flexibility.
F16L 11/24 - Hoses, i.e. flexible pipes wound from strips or bands
B32B 37/14 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
B32B 37/15 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)
B29C 47/02 - incorporating preformed parts or layers, e.g. extrusion moulding around inserts or for coating articles
F16L 11/115 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements not embedded in the wall
An extensible-retractable helically reinforced hose is formed by helically wrapping a freshly extruded bead of thermoplastic material about a rotating mandrel to form a helical array of spaced reinforcing coils, and by helically wrapping a freshly extruded thin yet wide web of thermoplastic material so edge regions of the wide web are placed onto and bond continuously with the peripheries of each adjacent pair of the reinforcing coils, with a leading edge region of each new wrap of the web overlying and bonding to a trailing edge region of a prior web wrap. Central portions of each web wrap extend radially inwardly and are sandwiched between adjacent reinforcing coils when the hose is retracted to a minimal axial length.
A flexible, stretchable, crush resistant hose particularly well suited for supplying breathing gases to patients in medical applications and the like is formed by providing a helix of coils of thermoplastic material that are bonded to a web of thermoplastic material, preferably along inner diameter surface portions of the coils. The web extends radially outwardly from between adjacent coils to define a helical reverse-direction crease at a maximum outer diameter of the hose when the hose is in a normal minimal-length condition wherein the coils are situated side-by-side sandwiching portions of the web therebetween. The thermoplastic material of hose is stress relieved by an annealing process performed while the hose is axially compressed after the hose is formed.
F16L 11/08 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
31.
Flexible stretch hose having inwardly extending web portions connecting adjacent pairs of reinforcing coils, with hose properties enhanced by annealing
A flexible, stretchable, crush resistant hose particularly well suited for supplying breathing gases to patients in medical applications and the like has a helix defined by reinforcing coils of thermoplastic material, and a web of thermoplastic material bonded or welded to adjacent ones of the coils, preferably near outer diameter portions of the coils. The web extends radially inwardly between the adjacent pairs of the reinforcing coils to define a helical reverse-direction crease that can be located closer to or farther from a centerline of the hose than is the inner diameter of the reinforcing coils. The thermoplastic material of the hose is stress relieved by an annealing process performed during axial compression of the hose at a time after the hose has been formed.
F16L 11/115 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements not embedded in the wall
F16L 11/118 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having arrangements for particular purposes, e.g. electrically conducting
B29C 53/78 - Winding and joining, e.g. winding spirally helically using profiled sheets or strips
F16L 11/11 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
F16L 11/04 - Hoses, i.e. flexible pipes made of rubber or flexible plastics
A flexible, stretchable, crush resistant hose particularly well suited for supplying breathing gases to patients in medical applications and the like has a helix defined by coils of thermoplastic material, and a web of thermoplastic material bonded or welded to adjacent ones of the coils, preferably along inner diameter portions of the surfaces of the coils. The web extends radially outwardly from between the adjacent coils to define a helical reverse-direction crease at a maximum outer diameter of the hose when the hose is in a normal minimal-length condition wherein the coils are situated side-by-side sandwiching portions of the web therebetween. The thermoplastic material of hose is stress relieved by an annealing process after the hose is formed, to enhance the flexibility of the hose and the ease with which the hose can be extended.
F16L 11/118 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having arrangements for particular purposes, e.g. electrically conducting
A heatable hose (1), in particular a respiration hose, having a flexible hose wall (4), shall guarantee through its design that a contact of the electric conductors or heating wires (14, 16) accommodated in the hose (1) and, thus, a short circuit, is excluded. For this purpose, the hose (1) is equipped with a plurality of reinforcing ribs (8, 12, 20, 22), each of which winds around the hose wall (4) in the manner of a helical line and which form together a multiple-threaded helical line, at least two reinforcing ribs (8, 12) being provided, each of which encloses a heating wire (14, 16) designed for heating the hose. Each heating wire (14, 16) is preferably a single-conductor wire.
F24H 1/10 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
