The disclosure relates to a device for monitoring and assisting an operator of a construction machine, which comprises a seat contact switch for detecting whether an operator is sitting in a seat of the construction machine, a door close switch for detecting whether a door of a driver's cab of the construction machine is closed, a grip sensor for detecting whether an operating lever arranged to the left of the seat and/or an operating lever arranged to the right of the seat for controlling a servo circuit of the construction machine is actuated by an operator, and an evaluation unit designed to limit or stop a capacity of the construction machine depending on the detected states of the seat contact switch, the door close switch and the grip sensor.
The disclosure relates to a mobile power supply unit for an electrically operable, mobile work-performing machine, comprising a power source surrounded by a housing and a first electrical connection, via which the work-performing machine is electrically connectable to the power source and can be supplied with electrical energy by the latter. In accordance with the disclosure the housing has a pick-up element, which is configured and arranged so that the power supply unit can be gripped and moved by means of a gripping tool and/or a quick-coupling device of the work-performing machine. The disclosure further relates to a set comprising a power supply unit according to the disclosure, to a work-performing machine comprising a power supply unit according to the disclosure, and to a method for moving such a power supply unit.
H02J 7/14 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
3.
METHOD FOR DETERMINING OR ADAPTING A CHARACTERISTIC CURVE OF A HYDRAULIC COMPONENT OR MOBILE WORKING MACHINE
The present disclosure relates to a method for determining or adapting a characteristic curve of a hydraulic component or mobile working machine having the following steps:
determining a volume flow;
determining a pressure drop;
determining a replacement parameter of the component from the volume flow and the pressure drop;
determining or adapting the characteristic curve using the replacement parameter.
The disclosure relates to an excavator bucket, which can be used both as a front loader bucket and as a backhoe bucket. The excavator bucket comprises a shell delimiting a bucket volume and a retaining device connected to the shell, via which the excavator bucket can be detachably connected to a quick coupling device of an implement. The retaining device comprises a first bolt for establishing a first connection to the quick coupling device and bolt receptacles arranged in a collinear manner to each other for establishing a second connection to the quick coupling device. According to the disclosure, the retaining device further comprises a second bolt, by means of which the first connection to the quick coupling device can be established as an alternative to the first bolt, wherein the second bolt is arranged on a side of the bolt receptacles opposite to the first bolt when viewed from above the retaining device. The bolts are arranged such that the second connection can be established via the same bolt receptacles, both when using the first bolt and when using the second bolt. The disclosure further relates to a method for converting the excavator bucket according to the disclosure between a backhoe bucket operation and a front loader bucket operation.
The disclosure relates to a mobile working machine comprising a driver's cab for accommodating an operator of the mobile working machine, a control station for the operator arranged in the driver's cab, a primary steering system arranged in front of the control station in the direction of travel of the mobile working machine, and a secondary steering system, arranged laterally offset from the control station in the direction of travel of the mobile working machine, wherein the primary steering system has a steering column section, which cooperates with a steering column mount to transmit a steering actuation to a control unit implementing the desired steering movement, wherein the steering column section and the steering column mount can be connected to each other in a rotationally fixed manner via a plug-in connection, such that the operator is able to dismount the primary steering system depending on a perceived visual restriction.
The present invention relates to a device for transferring exhaust gas between a front and rear carriage of a mobile working machine, in particular a dump truck, separated by an articulated pivot joint, which working machine has a pipe section, which is variable in it length, for conducting exhaust gas, a first flexible hose cooperating with a first end portion of the pipe section for introducing exhaust gas into the pipe section, and a second flexible hose cooperating with a second end portion of the pipe section for discharging exhaust gas from the pipe section. The device is characterized in that a first cardan shaft is provided in the first end portion, the distal end of which is configured to be rigidly attached to a fastening section of the front carriage or the rear carriage of the working machine, and a second cardan shaft is provided in the second end region.
The invention relates to a system for localizing an attachment tool for a work device comprising a first communication unit connect to an attachment tool and having a first acceleration sensor that is configured to provide a first acceleration signal relating to an instantaneous acceleration of the attachment tool; a second communication unit connected to the work device in the region of a connection region for the attachment tool and having a second acceleration sensor that is configured to provide a second acceleration signal relating to an instantaneous acceleration of the connection region; and an identification module that is coupled to the first and/or second communication unit(s) and that is configured to obtain the first and second acceleration signals and to enable a safe allocation of the attachment tool to the work device by evaluating the signals. The invention further relates to a set of a work device and an attachment tool having a system in accordance with the invention and to a method of localizing an attachment tool for a work device with the aid of a system in accordance with the invention.
The invention relates to a method and a system for determining process data of a work process carried out by an implement based on the determination of a moved mass by a weighing system of the implement and the detection of a parameter concerning a state of the implement and/or a work step, wherein with reference to these and further data a prediction value concerning the remaining part of the current work process is determined and on the basis of which information on the assistance is indicated to the operator of the implement, and to an implement comprising such a system.
The invention relates to a quick coupling for coupling a tool to the boom of a working machines, comprising a quick coupling part at the boom side and a quick coupling part at the tool side that are latchable to one another via two spaced apart latching axles and an energy circuit coupling for the automatic coupling of an energy connector at the tool side and an energy connector at the boom side that comprises an energy coupling part at the boom side and an energy coupling part at the tool side that move toward one another by pivoting together about a first latching axle on an orbit and thereby automatically couple with one another. At least one of the energy coupling parts is movably supported. The energy circuit coupling comprises a linear guide that compensates the circular relative movement of the energy coupling parts on the pivoting together and guides them linearly toward one another.
The present invention relates to a mobile work machine, in particular to an excavator, that comprises an undercarriage having a tracked chassis, a rail mounting, or a wheeled chassis, a superstructure having an attachment fastened thereto, and a slewing ring that rotatably connects the undercarriage and the superstructure to one another. The work machine is characterized by a decentralized energy supply and/or by a decentralized supply network, preferably a DC supply network, and a slip ring for transferring electrical energy between the superstructure and the undercarriage.
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
B60L 1/02 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles to electric heating circuits
B60L 50/40 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
A working machine, in particular a material handling machine, has a boom and a boom bracing actuated by an actuator operatively connected to the boom bracing by a lever rotatably articulated to a turntable, to introduce the required tensile force into the bracing.
B66C 23/00 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes
E02F 3/30 - DredgersSoil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam
The application relates to an operating device for operating an implement with at least one attachment, comprising at least one manual control unit and at least one controller/regulator, wherein the controller/regulator is equipped to actuate the attachment on the basis of a single control movement of the manual control unit, which is detectable by means of a single detection means provided on the manual control unit, for carrying out a linear movement.
G05G 9/047 - Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
The present invention relates to a work machine having at least one hydraulic actuator for actuating a piece of working equipment and having a first displacement unit that is driven by a drive assembly of the work machine and that feeds the hydraulic actuator with hydraulic medium from a hydraulic tank, wherein at least one second displacement unit is provided that is driven by the drive assembly and that feeds the hydraulic actuator and/or further hydraulic consumers with hydraulic medium from a hydraulic tank in the working mode and that is drivable during a recovery mode by the hydraulic volume displaced by the at least one hydraulic actuator or by a hydraulic consumer to feed kinetic energy back to the drive assembly.
The present invention relates to a construction machine, in particular an earth-moving machine, having at least one control panel for inputting operator commands for the control of the construction machine, wherein the control panel has at least one display means for representing an operating interface that can be dynamically generated for the machine control; and in that a control unit is provided that recognizes a change of the mode of operation of the construction machine and adapts the operating interface in dependence on the change of the mode of operation.
The invention relates to an operating unit for a working machine with at least one boom, wherein the operating device is configured to generate control signals for actuating the working machine in dependence on at least one joint position of a hand of an operator, and wherein the operating device comprises at least one operating unit.
G08C 17/00 - Arrangements for transmitting signals characterised by the use of a wireless electrical link
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G05G 9/04 - Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
G05G 9/047 - Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
The present invention relates to a construction machine having at least one material receiver that is adjustable by means of at least one hydraulic actuator for unloading, with the required feed pressure for the actuator actuation being able to be provided by a hydraulic circuit of the construction machine and with the feed pressure being able to be limited to a limit pressure by means of at least one pressure limiting device, wherein the construction machine comprises a weighing system for determining the current load weight of the material receiver; and a control for the hydraulic circuit is provided that adapts the limit pressure of the pressure limiting device in dependence on the determined load weight.
B60P 1/16 - Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load supporting or containing element actuated by fluid-operated mechanisms
B60P 1/04 - Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load supporting or containing element
F15B 11/05 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
F15B 13/04 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
The present disclosure relates to a cabin lifter for a material transfer unit comprising at least one hydraulic cylinder supported in a damped manner. The present disclosure is further directed to a corresponding damping bush for damping the hydraulic cylinder and to a material transfer unit comprising a corresponding cabin lifter.
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
E02F 9/16 - Cabins, platforms, or the like for the driver
B66C 23/00 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes
B62D 33/063 - Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
The present disclosure relates to a work machine, in particular to a hydraulic excavator, having at least one ballast device, wherein the ballast device comprises at least one ballast weight and at least one ballast support. The present disclosure is furthermore directed to a ballast weight for a corresponding work machine.
The invention relates to a valve unit for the exclusive hydraulic actuation of the locking means of a mechanical quick-changer for attachments of a construction machine, wherein the valve unit comprises a feed pressure connector for applying the feed pressure, a first valve unit outlet for connecting an unlocking pressure line, a second valve unit outlet for connecting a locking pressure line, at least one discharge to the tank, and at least two switchable directional valves, with the feed pressure connector being connected or connectable to the second valve unit outlet via a serial connection of the at least two switchable directional valves.
The present disclosure relates to an apparatus for controlling/regulating the travel speed of a utility vehicle comprising at least one drive motor, at least one hydraulic pump, at least one control slide valve, at least one hydraulic travel motor, at least one further hydraulic drive, as well as at least one controller. In accordance with the present disclosure, the travel speed of the at least one hydraulic travel motor is controlled/regulated via at least the speed of the drive motor, while the at least one further hydraulic drive does not provide any drive power.
B60W 10/06 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
F16H 61/4061 - Control related to directional control valves, e.g. change-over valves, for crossing the feeding conduits
B60K 31/00 - Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
F16H 61/431 - Pump capacity control by electro-hydraulic control means, e.g. using solenoid valve
F16H 61/421 - Motor capacity control by electro-hydraulic control means, e.g. using solenoid valves
F16H 61/47 - Automatic regulation in accordance with output requirements for achieving a target output speed
24.
Braking apparatus for work machines and method of actuating said braking apparatus
A braking apparatus for work machines has at least two brakes, each having at least one braking circuit. The braking circuits can each be actuated via at least one control valve, and the control valves can be controlled independently of one another. A processing unit, by which the control valves can be controlled or regulated, an operating circuit, via which the braking circuits can be controlled or regulated manually, and at least one pressure supply are provided, and the control valves can be controlled or regulated under predetermined conditions by the processing unit.
B60T 7/12 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger
B60T 15/00 - Construction, arrangement, or operation of valves incorporated in power brake systems and not covered by groups or
B60T 17/22 - Devices for monitoring or checking brake systemsSignal devices
B60T 1/10 - Arrangements of braking elements, i.e. of those parts where braking effect occurs acting by retarding wheels by utilising wheel movement for accumulating energy, e.g. driving air compressors
The present disclosure relates to an implement with a boom, wherein the boom is pivotally mounted about a horizontal axis via a bolt connection on a basic unit of the implement, with the bearing of the boom on the basic unit being effected via three bearing plates with corresponding bearing points for the bolt connection.
The present disclosure relates to a hydraulic system with at least two main control valves and with a hydraulic pilot control system for actuating the main control valves, wherein the hydraulic pilot control system and/or the main control valves are constructed such that the at least two main control valves open one after the other.
F15B 18/00 - Parallel arrangements of independent servomotor systems
F15B 13/07 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors in distinct sequence
The present invention discloses an implement, in particular an excavator or a machine for material handling, with an element movable via at least one working drive, wherein at least one energy recovery cylinder is provided for energy recovery from the movement of the movable element, which includes a chamber filled with gas. In accordance with the invention, a device for adjusting the temperature of the energy recovery cylinder is provided.
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/52 - Special means providing automatic damping adjustment in case of change of temperature
The present invention relates to a working device having an element movable via at least one working drive, with at least one energy recovery cylinder being provided for recovering energy from the movement of the movable element and having a chamber filled with gas. In this respect, the energy recovery cylinder has a sealing arrangement for sealing the chamber filled with gas which includes an annular space filled with oil.
F16D 31/02 - Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution using pumps with pistons or plungers working in cylinders
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
E02F 3/42 - Drives for dippers, buckets, dipper-arms or bucket-arms
The present invention relates to an implement, in particular an excavator or machine for material handling, with an element movable via at least one working drive, wherein at least one energy recovery cylinder is provided for energy recovery from the movement of the movable element, which includes a chamber filled with gas, wherein the actuation of the implement is effected in dependence on the directly or indirectly determined temperature of the gas in the chamber filled with gas.
F16D 31/00 - Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution
F16D 31/02 - Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution using pumps with pistons or plungers working in cylinders
F15B 11/00 - Servomotor systems without provision for follow-up action
F15B 11/064 - Servomotor systems without provision for follow-up action involving features specific to the use of a compressible medium, e.g. air, steam with devices for saving the compressible medium
F16F 9/52 - Special means providing automatic damping adjustment in case of change of temperature
The present invention relates to a working device having an element movable via at least one working cylinder, with at least one energy recovery cylinder being provided for recovering energy from the movement of the movable element and having a chamber filled with gas. In this respect, the chamber filled with gas is in operative communication with a pressure store which counters a pressure increase in the chamber filled with gas at least from a maximum pressure onward.
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
The present invention relates to an implement, in particular an excavator or a machine for material handling, with an element movable via at least one working drive, wherein at least one energy recovery cylinder is provided for energy recovery from the movement of the movable element, which includes a chamber filled with gas. The energy recovery cylinder is equipped with a heat exchanger.
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
The present disclosure relates to an apparatus, in particular a construction machine configured as a mobile excavator or a transfer apparatus, having an undercarriage carrying a chassis and having a superstructure connected thereto, wherein the superstructure is made up in a modular manner of at least two modules which can be releasably coupled to one another, and wherein at least one drive module is provided which forms an operable unit of a machine drive and a machine cooling system and at least one further module includes one or more superstructure components.
The present invention relates to a work machine, in particular to an excavator, having a boom, an extension element and a piece of working equipment, wherein the extension element is attached to a pivotal connection axle of the boom via a first gimbal mounting and bears the piece of working equipment, wherein the piece of working equipment is attached to a pivotal connection axle of the extension element via a second gimbal mounting.
The present invention relates to a construction machine having an operator's cabin whose cabin structure which is made reinforced serves the protection of the operator, with the operator's cabin being supported via a base plate at an operator's cab frame at the machine side. In accordance with the invention, the stiffness of the cabin structure is larger than that of the base plate and/or of the operator's cab frame at least with respect to a lateral force engagement so that in a load case first the base plate and/or the operator's cab frame are deformed.
The present invention relates to a traveling working machine, in particular an excavator, with an undercarriage on which the traveling gear is arranged, and an uppercarriage rotatably arranged on the undercarriage about a vertical axis of rotation. In accordance with the invention, the load-bearing steel construction of the uppercarriage is composed of at least one first and one second element, which are connected with each other via bolts and/or screws.
The present invention relates to a piece of working equipment, in particular to an excavator or to a machine for the transfer of material, having an element movable via at least one working hydraulic cylinder, wherein at least one energy recovery hydraulic cylinder is provided for the recovery of energy from the movement of the movable element. In accordance with the invention, the energy recovery hydraulic cylinder is filled with gas at the bottom side and has a hollow piston rod.
F16D 31/02 - Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution using pumps with pistons or plungers working in cylinders
The present invention relates to a hydraulic drive which comprises a hydraulic motor having a first hydraulic connector and a second hydraulic connector, wherein the pressure applied at the first hydraulic connector of the hydraulic motor and the pressure applied at the second hydraulic connector of the hydraulic motor are each separately adjustable.
F15B 11/05 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
The present invention relates to a traveling working machine, in particular a hydraulic excavator, with a traveling gear and with a hydraulic service brake system for the traveling gear, which is supplied with brake pressure via at least one brake valve. In accordance with the invention, the brake valve can be actuated electrically, wherein it is connected with a control element via an electric control line, by means of which an operator can brake the traveling working machine.
B60T 10/04 - Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope with hydrostatic brake
B60T 13/68 - Electrical control in fluid-pressure brake systems by electrically-controlled valves
The invention relates to a construction machine having a driver's cab, the reinforced cab structure of which serves to protect the driver, wherein the driver's cab is mounted by means of a base plate on a machine-side driver's platform frame. According to the invention, the rigidity of the cab structure is greater, at least with respect to a lateral application of force, than that of the base plate and/or of the driver's platform frame, such that in the event of a load being applied, firstly the base plate and/or the driver's platform frame are deformed.
The present invention relates to a mobile excavator with an undercarriage having at least two axles, wherein at least one supplementary axle (12) is attached to the mobile excavator in such a way as to be capable of being coupled. According to the invention, the supplementary axle can be built rigidly onto an extensible element (24) of the undercarriage.
The invention relates to a quick coupling comprising a base plate and a support plate, with the mounting frame being guided movably at the base plate and having means for connection to the support plate. In accordance with the invention, the support plate is moved toward the base plate by means of the mounting frame to close the coupling.
The present invention relates to a mobile work machine, in particular to an excavator, that comprises an undercarriage having a tracked chassis, a rail mounting, or a wheeled chassis, a superstructure having an attachment fastened thereto, and a
slewing ring that rotatably connects the undercarriage and the superstructure to one another. The work machine is characterized by a decentralized energy supply and/or by a decentralized supply network, preferably a DC supply network, and a slip ring for transferring electrical energy between the superstructure and the undercarriage.
B60L 9/00 - Electric propulsion with power supply external to the vehicle
B60L 50/53 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
A digging or gripping tool, for use with excavators or similar machinery, comprises at least one cutting edge having an outer edge, a plurality of vertical webs disposed on the outer edge of the cutting edge and a plurality of adjacently disposed cutting edge rollers mounted on the outer edge between the vertical webs, wherein each adjacent roller shares at least one of the webs, the webs and rollers defining a substantially continuous assembly, and each roller is constructed and arranged to rotate independently on contact with an opposing surface. Optionally, the tool comprises two opposing cutting edges pivotally mounted to be movable between a first open position wherein the cutting edges are spaced apart and a closed position wherein the cutting edges are disposed in juxtaposed alignment. The tool reduces the risk of damage to materials contacted or carried by it.
B66C 1/32 - Duplicate, e.g. pivoted, members engaging the loads from two sides and also arranged to grip the sides of the loads of piled or stacked articles
E02F 5/00 - Dredgers or soil-shifting machines for special purposes
E02F 9/00 - Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups
The present invention relates to a construction machine having an operator's cabin whose cabin structure which is made reinforced serves the protection of the operator, with the operator's cabin being supported via a base plate at an operator's cab frame at the machine side. In accordance with the invention, the stiffness of the cabin structure is larger than that of the base plate and/or of the operator's cab frame at least with respect to a lateral force engagement so that in a load case first the base plate and/or the operator's cab frame are deformed.
B60L 9/00 - Electric propulsion with power supply external to the vehicle
B60L 50/53 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
B60L 50/72 - Constructional details of fuel cells specially adapted for electric vehicles
B66C 1/22 - Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loadsCrane hooks
B66F 19/02 - Hauling using anchorsAnchors therefor
H02G 11/02 - Arrangements of electric cables or lines between relatively-movable parts using take-up reel or drum
H02J 4/00 - Circuit arrangements for mains or distribution networks not specified as ac or dc
H02J 9/00 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details
patents
