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8876495 Case flow augmenting arrangement for cooling variable speed electric motor-pumps  
Example fluid circuits (e.g., within aircrafts) include first and second pump assemblies. The first pump assembly has an electric motor and a first fluid pump. The first fluid pump is coupled to...
8528594 Hydraulic system with leakage fluid removal  
Hydraulic system with a hydraulic machine, in particular an axial piston or radial piston unit, with rotating and moving machine components which are arranged in a housing. The housing is...
8403644 Power generating apparatus of renewable energy type  
A power generating apparatus of renewable energy type in which a hydraulic pipe between a hydraulic pump installed inside a nacelle and a hydraulic motor installed near a bottom part of a tower...
7082756 Device for detecting failure of hydraulic motor, and hydraulic vehicle  
A failure detection device for a hydraulic motor of the present invention comprises a hydraulic pump 3 that is driven by a prime mover 2; a hydraulic motor 1 that is driven by hydraulic oil...
7004062 Elevator pit receptacle with float valve assembly  
An elevator pit receptacle and float valve assembly provide for the safe displacement and collection of seeped hydraulic fluid from an elevator cylinder/piston assembly. The receptacle is elevated...
6393839 Pressurized medium delivery device  
Pressurized medium delivery device with a pump, a suction pipe, at least one pressure pipe and a pressurized medium supply volume in a pressurized medium supply container.
5623870 Oil mist eliminator for a press oil control system  
An oil mist eliminator filter used with a dynamic oil control mechanism consisting of a vacuum-inducing jet-pump to vacuum oil leaking from about an oil seal, an oil seal located around the drive...
5557931 Charge pump for axle driving apparatus including hydrostatic transmission  
Means for connecting auxiliary pumps and charge pumps to an axle driving apparatus to transfer power from a light duty vehicle engine to an output axle, wherein the charge and/or auxiliary pumps...
5555727 Auxiliary pumps for axle driving apparatus including hydrostatic transmission  
Means for connecting auxiliary pumps and charge pumps to an axle driving apparatus to transfer power from a light duty vehicle engine to an output axle, wherein the charge and/or auxiliary pumps...
5469704 Hydraulic drive apparatus comprising a cylinder  
The invention relates to a hydraulic drive apparatus having a cylinder. Said cylinder comprises a piston movably mounted in a working chamber, a piston rod which is guided towards the outside...
5467705 Oil control system for a press  
A dynamic oil control mechanism for a press including a vacuum inducing ejector or jet-pump to vacuum oil leaking from about an oil seal. The oil seal is located around the drive piston on the...
5173019 Pump including secondary containment with alarm system  
A pump assembly including an impeller mounted on a shaft for rotation in an impeller casing to move liquid through the casing, the shaft being supported by bearings located in a bearing housing...
5146748 Axle driving apparatus  
An axle driving apparatus which houses in a transmission casing thereof a hydraulic motor and a hydraulic pump of a hydro-static-transmission and disposes in the transmission casing a center...
5050380 Means for receiving and subsequently emptying hydraulic fluid from a hydraulic system  
A means for receiving and subsequently emptying hydraulic fluid from a hydraulic system is described. It comprises a working cylinder (1) and a supply conduit (8) disposed between a pump and the...
5042250 High-back pressure power steering device  
A hydrostatic power steering device is disclosed, which may be either a fluid controller (15) or a torque generator 111. The device is of the type including a housing (19;135) defining a fluid...
4945724 Apparatus for collecting hydraulic leakage fluid  
Hydraulic fluid leakage collection apparatus that includes an annular collection chamber that is carried in a cylindrical member within which a piston member is movable. A seal and wiper are...
4715180 Hydraulic lift mechanism  
The invention contemplates hydraulic-lift mechanism which employs a power integrator in the connection between a charged hydraulic accumulator and the actuator for a vertically positionable load;...
4445332 Hydraulic hose assembly and method  
High-pressure hydraulic hoses are employed in hydrostatic drive systems to interconnect the transmission and motors thereof. It is imperative that fluid leakage be held to a minimum, or preferably...
4432442 Hydrodynamic torque-transfer unit, especially a hydrodynamic brake  
The disclosure concerns a hydrodynamic torque transfer unit, especially in the form of a hydrodynamic brake. The unit includes a working chamber with a stator and a rotor therein. The rotor is...
4425758 Maintaining hydrostatic system control pressure  
A hydrostatic transmission (10) includes a variable displacement pump (12) for driving a fluid motor (14) in first and second directions. First and second high pressure conduits (20,22) connects...
4329064 Hydrostatic-mechanical drive for vehicular cement mixers  
In a cement-mixer truck having a mixing drum rotated via a step-up transmission by a hydrostatic motor in turn energized by a power pump driven by the vehicle engine, the motor is disposed in a...
4241578 Fluid storage tank for an industrial vehicle  
A hydraulic fluid storage tank for an industrial vehicle. A small surge tank (44) is mounted on top of a main tank (10) and communicates with the main tank via a drain back hole (49) formed in the...
4168652 Power transfer unit  
A power transfer unit for transferring power between two separate hydraulic circuits comprising a casing, a pair of cylinder blocks in the casing, cylinders within each cylinder block, a piston in...
4074782 Hydraulic system of a skid steer loader  
A skid steer loader comprising an improved loader main frame and including an operator's compartment designed to present a low profile vehicle particularly suitable for low clearance applications....
4033127 Hydraulically-powered vehicle accessory system supercharged by hydraulic vehicle drive system  
A hydraulic system for mobile industrial equipment wherein the wheels or tracks of the mobile equipment are driven by a hydraulic transmission system having an engine-driven pump assembly, and...
3943717 Contaminant removal from a hydraulic cylinder  
A hydraulic cylinder comprises a piston reciprocally mounted in a housing thereof. A pair of annular sealing means, slidably receiving a rod of the piston, are disposed on either side of an...
3886742 Single pump hydrostatic transmission control and supply system  
A system for supplying control, actuation, and other functions in a hydrostatic transmission. The supply system includes singular pump means for supplying fluid under pressure to a pressure...
3823561 HYDRAULIC DRIVING UNIT FOR WINDSHIELD WIPERS IN MOTOR VEHICLES  
A hydraulic driving unit for windshield wipers comprising a transmitter having a double-acting piston with chambers at opposite ends thereof adapted to convey to corresponding chambers of two...
3822759 POWER STEERING GEAR ASSEMBLY  
The cylinder housing of a power steering gear is provided with a hollow piston having a rack meshing with the output gear, also enclosed within said housing. Fluid check valve means are provided...
3750404 HYDRAULIC FAIL-SAFE VALVE OPERATOR  
The invention relates generally to the control of sub-surface oil tools. A fail-safe operator for such tools is characterized as hydraulically operated and adapted to be connected in a system...
3680312 HYDROSTATIC MACHINE  
A hydrostatic machine, e.g. a hydrostatic pump or hydrostatic motor operating in a closed fluid circuit and having a housing into which leakage of the hydraulic medium can occur, is provided with...
3656299 HYDROSTATIC TRANSMISSIONS  
This hydrostatic transmission comprising a hydrostatic machine normally operating as a generator and at least one hydrostatic machine normally operating as a receiver or load apparatus, these...
3646596 FLUID SYSTEM FOR A VEHICLE WITH FLUID DRIVE MEANS  
A fluid system for supplying pressurized fluid to the accessory motor means and hydrostatic drive means of a vehicle. The system includes first pump means and first valve means for controlling the...
3613364 HYDROSTATIC STEERING SYSTEM WITH HYDRAULIC REACTION AND REACTION LIMITING  
3593521 LOWERED HYDRAULIC CHAIR BASE  
A hydraulic chair base, for raising and lowering a dental chair, has a unitary pump-closed reservoir structure mounted thereon for delivering fluid to a fluid motor to raise the chair. Return of...
3579988 HYDROSTATIC TRANSMISSION CONTROL SYSTEM  
A hydrostatic pump-and-motor transmission system, e.g. for a vehicle, in which the pump and the motor can have their displacement volumes varied in discrete steps to give a number of predetermined...
3529421 JET-PUMP OIL-RETURN SYSTEM  
3523419 HYDRAULICALLY CONTROLLED ROTARY TRANSMISSIONS  
1,222,515. Hydrostatic transmission control. ENGLISH ELECTRIC CO. Ltd. 19 June, 1968 [27 June, 1967], No. 29538/67. Heading F2D. The output speed of a hydrostatic transmission comprising a...
3501999 PORTABLE HAND MILL  
3493067 DIRECT DRIVE WHEEL MOUNT  
3485047 HYDRAULIC MOTOR HAVING SPEED AND DIRECTIONAL CONTROL SYSTEM  
1,217,201. Reciprocating motors. APPLIED POWER INDUSTRIES Inc. Jan.4, 1968 [April 25, 1967], No.692/68. Heading F1A. [Also in Division F2] In a hydrostatic transmission system having a variable...
3478514 HYDRAULIC DRAIN MEANS FOR SERVO-SYSTEMS  
3478648 FLUID SYSTEM  
3435615 SPEED REGULATOR FOR HYDROSTATIC TRANSMISSIONS  
1,178,510. Hydrostatic transmissions. GENERAL SIGNAL CORP. 18 July, 1968 [20 Oct., 1967], No. 34313/68. Headings F2C and F2D. In order to reduce the changes in output speed due to variations in...
3429123 SPEED CONTROL SYSTEM  
3411297 Hydrostatic transmission  
3411294 Reversible hydraulic controller, particularly for automotive hydraulic steering controls  
1,184,454. Power assisted and telemotor steering systems. ROBERT BOSCH G.m.b.H. 6 April, 1967 [9 April, 1966], No. 15761/67. Heading B7H. [Also in Division F1] A steering cylinder 82, Fig. 4, is...
3396536 Hydraulic transmission  
1,189,847. Hydrostatic transmissions. CESSNA AIRCRAFT CO. 7 June, 1967 [8 Aug., 1966], No. 26247/67. Headings F2C and F2D. [Also in Division F1] To ensure that the continuous lubrication of the...
3369491 Energy transfer mechanism  
3359727 Hydrostatic transmission  

Matches 1 - 50 out of 106 1 2 3 >