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| Number | Title | Issue Date |
| 8113311 | Chassis for a battery-operated industrial truck A chassis for a battery-operated industrial truck has a center chassis section (1) configured to hold a battery block. The center chassis section (1) is open on top, has a forward transverse wall (5), a rear transverse wall (6), an open s... | 02/14/2012 |
| 7845916 | Axial piston machine in swashplate construction An axial piston machine (1) has a swashplate construction with work pistons (6) located longitudinally in a cylinder drum (4), each supported by a sliding block (8) on a swashplate (11). The sliding blocks (8) are secured ag... | 12/07/2010 |
| 7874394 | Industrial truck with a preassembled axle assembly An industrial truck, in particular counterbalance fork-lift truck, has a front drive axle (2) which has at least one electric drive motor and is fastened together with other components (K) to a vehicle frame (1). A component carrier (T) adjoining the d... | 01/25/2011 |
| 7872449 | Industrial truck with a battery and method for operating an industrial truck with a battery The invention relates to an industrial truck with at least one drive battery and at least one apparatus (A) for determining the state of charge of the battery and to a method for operating such an industrial truck. The apparatus (A) for determining the state of char... | 01/18/2011 |
| 7775927 | Traction drive of a machine with an interchangeable transmission module A traction drive of a machine has an internal combustion engine, a transmission module located downstream of the engine and having an adjustable output speed, and a drive axle with a differential transmission, having a mechanical drive connection with the transmissi... | 08/17/2010 |
| 7753455 | Working machine A working machine, such as an industrial truck, has working hydraulics, a hydraulic steering device, and a spring-loaded brake. The brake has a braking position and a release position and can be acted upon by a brake-release pressure, which is passed in a brake line... | 07/13/2010 |
| 7706947 | Industrial truck having increased static or quasi-static tipping stability A forward-control counterweight fork-lift truck has a liftable and tiltable load-lifting device (1), a traction drive and operating drives for the movement of the load-lifting device (1). A calculation model (D) is stored in a control device (SE), to w... | 04/27/2010 |
| 7699407 | Industrial truck A working machine, such as an industrial truck, having a spring-loaded brake having a braking position and a release position and controlled by a brake valve producing a brake-release pressure. The brake valve is operatively connected to a service brake input device... | 04/20/2010 |
| 7694766 | Counterweighted fork lift truck with at least one air intake opening in the vicinity of a step recess A counterweighted fork lift truck has a vehicle body (2) with an equipment compartment (R) located underneath a driver workplace (1). The equipment compartment and contains heat-emitting components. The vehicle body (2) includes at least one ste... | 04/13/2010 |
| 7694759 | Lift truck fleet with a common frame A fleet of lift trucks includes a lift truck for walk-behind operation without a stand-on platform and a lift truck for stand-on operation with a stand-on platform. Each lift truck of the fleet of lift trucks has a vehicle frame, to which a traction unit, a lifting ... | 04/13/2010 |
| 7681393 | Hydrostatic drive axle with two hydrostatic axial piston motors utilizing a swashplate design located next to each other A hydrostatic drive axle has two hydrostatic axial piston motors utilizing a swashplate design located coaxially next to each other, the control sides of which face each other. Tubular terminal segments (1a) of the drive axle are in the form of axial p... | 03/23/2010 |
| 7669514 | Device to guarantee the sequence of movement of at least two fluid-actuated displacement units A device to guarantee the sequence of movement of at least two fluid-actuated displacement units. A primary displacement unit includes a cylinder (Z) with a retractable and extendable piston rod (4). Integrated into the cylinder (Z) is a directional control v... | 03/02/2010 |
| 7650958 | Traction drive having an electrical converter The invention relates to a traction drive for a working machine, in particular an industrial truck, including an electrical converter having a generator (11), which is drive-connected to a combustion engine (12), and a traction motor (1 or 2 | 01/26/2010 |
| 7617905 | Hydraulic steering device A hydraulic steering device (1) of a mobile machine, in particular of an industrial truck, includes a steering angle transmitter (2) in mechanically functional communication with a steering valve (4). As a function of the actuation of the steeri... | 11/17/2009 |
| 7617760 | Valve device A control valve device (1) for the control of a consumer (2), in particular of a dual-action consumer, includes a control valve (3) that controls the connection of an admission side of the consumer (2) with a pump and a return side of the... | 11/17/2009 |
| 7600377 | Hydrostatic drive system A hydrostatic drive system has a pump (1) and at least one consumer (5) controlled by a control valve (4) that can be actuated by control signals. A precharge device (10) that generates a precharge pressure is located in a reservoir line ... | 10/13/2009 |
| 7591334 | Industrial truck with a lateral maintenance opening An industrial truck, in particular a reach truck or reach-fork truck, has a maintenance opening. At least the following components are accessible through the same maintenance opening: at least one electric connector (10, 16, 17), a hydraulic tank (4) f... | 09/22/2009 |
| 7565943 | Mobile machine with an electric traction motor of a traction drive, an electric pump motor of a hydraulic work system, and fluid cooling A mobile machine, such as an industrial truck, has heat-emitting drive components (K) of a traction drive and a hydraulic work system. The traction drive includes at least one electric traction motor (3) and a traction motor control system (7). The hyd... | 07/28/2009 |
| 7559401 | Hydrostatic drive system A hydrostatic drive system has a travel drive (4) and working hydraulics (6). The working hydraulics (6) have a variable delivery pump (5) connected to the driving engine (1). The pump (5) is connected to a container (10 | 07/14/2009 |
| 7540231 | Control valve device for the control of a consumer A control valve device (1) for the control of a dual-action consumer (2) has a control valve (3) that controls the connection of a pressure fluid line (6a) that forms the admission side of the consumer (2) with a pump and an... | 06/02/2009 |
| 7514805 | Drive axle having an electrical converter A drive axle for a working machine, in particular an industrial truck, has at least one electrical traction motor (1 or 2) and a second electrical machine, the traction motor (1 or 2) being arranged in the axial direction. In order to ext... | 04/07/2009 |
| 7503380 | Industrial truck with a radiator and a filter An industrial truck includes a radiator (3), a cooling air line (4), and a filter (6) that is located in the vicinity of the cooling air line (4). A cleaning device that can be effectively connected with the filter (6) can be integ... | 03/17/2009 |
| 7467820 | Industrial truck driver protection roof An industrial truck driver protection roof has a frame with front-end and rear-end vertical load-bearing struts (T1-T4) that are located at a distance from each other in a transverse direction of the vehicle, and horizontal roof trusses (D1-D... | 12/23/2008 |
| 7467515 | Hydrostatic drive system A hydrostatic drive system has a consumer (7), in particular a hydraulic motor, located in the open circuit. Associated with the consumer (7) is at least one pressure limiting device (11a; 11b) that can be actuated in the br... | 12/23/2008 |
| 7455137 | Industrial truck with force-transmitting door with double hinge A counterweighted fork-lift truck has a vehicle frame (1) with a frame segment (2) having a lateral frame opening (2b). A pivoting door (3) covers the frame opening (2a). The door (3) is connected to the vehicl... | 11/25/2008 |
| 7448465 | Machine with a steering axle with axle tree bolsters and axle bodies having individual components An industrial truck has a steering axle with two axle tree bolster systems located at a lateral distance from each other. Each system has an axle body with an axle shaft (1) and an axle tree bolster (2) located on the lower end of the axle shaft (1 | 11/11/2008 |
| 7441494 | Industrial truck having a lifting mast and tilting cylinders having an integrated hydraulic distributor An industrial truck includes a tiltable lifting mast (1), a first tilting cylinder (2), and a second tilting cylinder (3). The two tilting cylinders (2, 3) are of double-acting design and are connected hydraulically in parallel. Two hydra... | 10/28/2008 |
| 7431121 | Drive section of a lift truck A drive section of an industrial truck has a vehicle frame (1), a drive unit (4) having a steerable drive wheel, and at least one pivoting roller (5, 6) located at a lateral offset in relation to the drive wheel (4d). The vehicle f... | 10/07/2008 |
| 7407038 | Lifting framework for an industrial truck A lifting framework for an industrial truck has an extendible mast guided on a guide mast by rollers. Means are provided for bracing the extendible mast with the guide mast so as to prevent the extendible mast from inclining in the lateral direction of the lifting f... | 08/05/2008 |
| 7331272 | Multiple-stroke hydrostatic axial piston machine A multiple-stroke hydrostatic axial piston machine has a plurality of piston-shaped displacement bodies (13) that can each move longitudinally in a displacement chamber (12) and are each supported by a roller body on a track (9) that is provided... | 02/19/2008 |
| 7281619 | Multiple-disk brake or clutch A multiple-disk brake or clutch (1) includes at least one disk (2, 4) in a housing and at least one disk located on a shaft. Coolant is located in the housing (3). A coolant outlet (10) and a coolant inlet (7) of a cooling circuit ... | 10/16/2007 |
