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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... |
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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... |
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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... |
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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... |
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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... |
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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. |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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;... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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.... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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3613364 |
HYDROSTATIC STEERING SYSTEM WITH HYDRAULIC REACTION AND REACTION LIMITING
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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... |
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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... |
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3529421 |
JET-PUMP OIL-RETURN SYSTEM
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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... |
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3501999 |
PORTABLE HAND MILL
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3493067 |
DIRECT DRIVE WHEEL MOUNT
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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... |
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3478514 |
HYDRAULIC DRAIN MEANS FOR SERVO-SYSTEMS
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3478648 |
FLUID SYSTEM
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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... |
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3429123 |
SPEED CONTROL SYSTEM
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3411297 |
Hydrostatic transmission
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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... |
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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... |
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3369491 |
Energy transfer mechanism
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3359727 |
Hydrostatic transmission
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