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6973816 |
Device for straightening the bodywork and/or the structures of a motor vehicle involved in an accident
A device for straightening the body and the structures of a damaged vehicle, includes a master cylinder filled with hydraulic fluid, wherein moves a master piston under the action of a rotary...
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5260722 |
Method and apparatus for advancing a carriage by fluid displacement
Methods of and apparatus for advancing a carriage utilize a displacement pump for displacing a selected quantity of fluid. The displacement pump is driven continuously by a motor to provide a...
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5159814 |
Pneumatic impulse motor with gas cushion
An impulse motor for a hand held hammer machine comprises a housing (10) with a cylinder (11) therein, in which a reciprocating drive piston (40) via a gas cushion in a working chamber (44) of said...
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4735051 |
Double admitting pressure intensifier
A double admitting pressure intensifier which automatically reverses at its end positions is provided. The pressure intensifier comprises a pressure intensifier piston and a control slider running...
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4667475 |
Fluid power apparatus for industrial robots and the like
A fluid power apparatus particularly useful for an industrial robot which includes a pair of expansible chamber devices each having a pair of control chambers in fluid communication with each other...
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4561251 |
Hydraulic apparatus
A hydraulic apparatus is provided which comprises a liquid-pulse generator, and hydraulic motor connected to said generator by a flexible pipe. The motor is driven by liquid pulses provided by the...
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4509330 |
Pneumatically controlled pressure transducer for operating hydraulic work tools
The invention relates to a pneumatically controlled pressure transducer for operating hydraulic work tools having a dual operating cylinder, on one side of which a pneumatically operable piston, on...
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4348161 |
Pressure converting apparatus
Pressure converting apparatus which automatically and continuously converts low pressure fluid into high pressure fluid comprises low pressure and high pressure cylinders which are coaxially...
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4335825 |
Reservoir tank
The invention is related to a reservoir tank receiving liquid therein and having a peep hole in a side wall for visually inspecting the interior of the tank. The peep hole is formed by a cup-shaped...
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4251993 |
Hydraulic boat lift with regulating system therefor
An hydraulic boat lift utilizing readily available city water as the pressure fluid comprises one or more lift cylinders buried vertically under a body of water with the upper ends of the cylinders...
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4248045 |
Means for selectively transmitting drive
Drive is transmitted from a cam to a push rod via a body of liquid trapped between two pistons. A control element is normally urged against a seat by pressure in the body of liquid but can be...
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4176520 |
Drive system for deep well pump
A drive system is provided for driving the pump rod of a deep well pump. The drive system includes a lift cylinder having a piston movable therein connected to the pump rod of the well pump. The...
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4003203 |
Hydraulic exciter of vibrations for a vibratory compactor
A hydraulic exciter of vibrations for a vibratory compactor includes an exciter containing a piston which is movable to and fro in the cylinder and either the piston or the cylinder is connected to...
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3863681 |
DEVICE FOR DRIVING MOVABLE MACHINE PARTS IN REVERSE DIRECTION
Device for driving movable machine parts, particularly in dobbies, in reverse directions. The device has at least one double-acting piston driving unit and at least one double-acting piston driven...
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3849986 |
HYDRAULIC EXCITER OF VIBRATIONS FOR A VIBRATORY COMPACTOR
A hydraulic exciter of vibrations for a vibratory compactor includes an exciter cylinder containing a piston which is movable to and fro in the cylinder and either the piston or the cylinder is...
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3762160 |
HIGH VELOCITY THRUST ACTUATOR
The specification discloses a high velocity thrust actuator comprising a piston chamber which is operated by a hydraulic power unit. The piston chamber is adapted to suddenly produce a large thrust...
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3706202 |
MANUALLY OPERATED FLUID PRESSURE DRIVEN ROTARY DRIVE
Manually operated single or multiple fluid motors for generating fluid pressure and driving a reciprocating servo motor having a screw like reciprocating force transmitting element and a rotary...
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3686863 |
VARIABLE-DRIVE HYDRAULIC TRANSMISSION FOR THE FOUNTAIN AND DUCTOR ROLL ASSEMBLIES OF AN OFFSET PRINTING PRESS
A hydraulic transmission is disclosed through which the fountain and ductor roll assemblies of an offset printing press are variably driven from a reciprocable drive mechanism having a constant...
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3635014 |
METHOD AND DEVICE FOR CONTROLLING THE PISTON MOVEMENT OF HYDROSTATIC PRIME MOVERS
A method of and apparatus for affecting the chronological course of movement of the working pistons of internal combustion operated prime movers, in which for purposes of converting the...
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3626446 |
DEVICE FOR BUILDING UP HIGH-PRESSURE IMPULSE JETS OF LIQUID
The present invention provides a device for building up high-pressure impulse jets of liquid upon an impact delivered by a piston accelerated by compressed gas upon liquid disposed in a chamber...
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3604204 |
COUNTERPISTON MACHINE, ESPECIALLY COUNTERPISTON MOTOR
A counterpiston machine, preferably counterpiston motor, in which at least two displacement pistons are, by pull rods and a transverse yoke, connected with a counterpiston, and in which the liquid...
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3601988 |
DEVICE FOR BUILDING-UP FLUID PRESSURE PULSES
The invention relates to a device for building up fluid pressure pulses, said device comprising a cylinder and a piston reciprocating inside said cylinder and dividing its cavity into two chambers....
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3568780 |
FREE-PISTON-TYPE PERCUSSION DEVICE WITH AIR PUMP
A tool cylinder is provided in parallel with an air pump cylinder. Each cylinder is separated by its respective piston into an upper and a lower chamber each of which communicates pneumatically...
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3548593 |
FLUID MOTOR POWER PLANT
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3529681 |
HYDRAULICALLY CONTROLLED VIBROHAMMER
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3490233 |
EXPANDIBLE BULB MOTOR
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3456444 |
ACTUATING UNIT FOR CIRCULATORY ASSIST SYSTEMS
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3407601 |
Air-hydraulic system and apparatus
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3330113 |
Power brakes
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3306042 |
Fluid transmission for drive and driven members
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3300972 |
Press ram assembly
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3292369 |
Impulse tool
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3289407 |
Torque device
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3286465 |
Drive regulating mechanisms
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3266217 |
Apparatus for hydraulic control of the transverse sealing jaws of a packaging machine
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3263426 |
Power tool
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3250335 |
Device for use in percussion mechanisms
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3222867 |
Balanced rotary commutating valve
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3218760 |
Oscillator with free piston
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3205663 |
Arrangement for relieving the guiding means of sliding members of a motion converter
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3183840 |
Pump
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3167020 |
Pulsating power unit devices
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3149469 |
Controlled volume pump
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3135094 |
Drive for conversion of a reciprocating movement into a rotary movement with a liquid as conversion means
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3115751 |
Hydraulic reciprocatory device
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3115662 |
Hydraulic windshield wiper motor and system
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3099367 |
Liquid dispensing system
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3093971 |
Means for varying work cycles
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3079906 |
Automatic wheel dresser
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3066476 |
Arrangement for converting a reciprocatory movement into a rotary movement
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