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Match Document Document Title
7530613 Apparatus for connecting and disconnecting two objects  
An apparatus for connecting and disconnecting two objects comprises: a housing formed as a hollow type, and having one closed end to which a first object is connected and another opened end; a...
7444813 Volume-conversion techniques for active-materials-based morphing structures  
Described is a volume-conversion structure for causing a volume transfer. The volume-conversion structure includes a first reservoir and a second reservoir. The first reservoir includes a first...
7437872 Object separating apparatus using gas  
An object separating apparatus uses gas and has a hollow housing with a closed end connected to a first object, and an opened end. An axially movable cylinder is installed at an inner space of the...
7114431 Fluid powered apparatus for operating a mechanism during an emergency  
An apparatus includes a reservoir of a pressurized fluid connected to a supply conduit. A fluid powered actuator has a first port and an second port. A volumetric flow regulator has a valve element...
7036307 Rechargeable pneumatic power supply  
In one embodiment, a pneumatic power-supply assembly includes a refillable chamber having an interior capable for holding a pressurized fluid, a vent, and a fluid inlet. A pressure release...
6755113 Accumulated semi-active hydraulic damper  
A semi-active hydraulic damper includes a cylinder, an accumulator, an oil box, and a directional control member. A directional control valve of the directional control member is connected to a...
6609597 Dampening apparatus  
A dampening apparatus for dampening an actuating member over a wide array of temperatures. The present invention provides a fluid filled housing having a first chamber, a second chamber, and a...
6494124 Self-contained hydraulic system  
A self-contained hydraulic system used with lifting mechanisms to aid in the lifting of their arms before undertaking lifting operations. The system includes a hydraulic reservoir for a liquid and...
5522221 Active suspension system  
An actuator for use in an active suspension system is controlled by a valve responsive to differential pressure across the piston of the actuator. The valve operates to allow movement of the piston...
5438829 Air compression system having two separate compressed air accumulators  
An air compression system for supplying a compressed air into a pneumatically operated tool. The system includes an air compressor and air accumulator connected to the compressor and having a first...
5417064 Apparatus for supplying hydraulic fluid to a hydraulic actuator  
Apparatus for supplying hydraulic fluid to a hydraulic actuator, which apparatus has a delivery duct, a return duct, a pressure accumulator for the delivery duct and a hydraulic accumulator or...
5185999 Hydraulic brake booster and valve members  
A hydraulic brake booster (10) includes a housing (12) which defines a pressure chamber (16) and a piston (18) within the housing (12) is movable in response to pressurized fluid within the...
5184465 Landing gear drag strut actuator having self-contained pressure charge for emergency use  
An actuator for raising and lowering aircraft landing gear in accordance with the extended and retracted state of the actuator includes a cylindrical casing, a piston assembly slidable along the...
5165232 Dual charge engine start accumulator  
There is provided by the present invention an accumulator system for turb engine start-ups that has comparable weight and bulk to a conventional auxiliary power unit system but which has...
4858716 Two wheel/four wheel drive change over apparatus for four-wheel drive vehicles  
A two wheel drive/four wheel drive change over apparatus for four-wheel drive vehicles includes an actuator having a vacuum chamber. A tank storing an engine vacuum through a check valve is...
4835967 Hydraulic booster equipped with emergency accumulator  
A hydraulic booster equipped with an emergency accumulator, wherein reaction and power pistons are slidably fitted in a housing such that the two pistons define a power chamber therebetween. The...
4796428 Double-acting forging hammer and method  
A double-acting accelerated forging hammer and method of operation are disclosed. The hammer is of the type having a vertically oriented cylinder, a piston slidably mounted within the cylinder...
4726190 Pressure generator with check valve  
On actuation, each pressure generator at each of a plurality of locations along a conduit develops a pressure rise in the conduit to energize a pressure sensitive device in fluid communication with...
4633665 Double-action piston/cylinder unit  
A double action piston/cylinder unit has a piston guided in a cylinder and attached to a piston rod, the piston to be charged with a pressure agent, particularly hydraulic fluid at a first end...
4608913 Actuator with pneumatic energy accumulator more especially for cock valves  
The present invention provides an actuator comprising a hydraulic cylinder whose rod is connected to the shaft driving the controlled device by means of a transmission. The end of the rod of the...
4541241 Hydraulic driving arrangement for reciprocable masses or the like  
An energy-saving hydraulic driving arrangement includes a motor having two chambers separated by a reciprocable or angularly movable output element which can accelerate or decelerate a mass. One of...
4490621 Method and apparatus for generating electric power by waves  
At least one caisson which is part or all of a breakwater forms a water chamber therein whose closure is a pendulum having a natural period in rocking or oscillating the same as a period of...
4476677 Hydraulic supply circuit for vehicle steering system  
An hydraulic supply circuit for a vehicle power steering system of the type having a steering actuator and control valve therefor with hydraulic input, sump and overflow (by-pass) connections and...
4476678 Control mechanism for pneumatic apparatus  
The control mechanism is for pneumatic apparatus of the kind comprising a piston-and-cylinder motor coupled between two relatively-movable parts (such as door-leaves) for driving them, when...
4475641 Double acting hydraulic accumulator for power shift transmission  
A double acting hydraulic actuator for operating in a power shift transmission. An accumulator operates with two hydraulic clutches to dampen surges in pressures and to store energy in the...
4475710 Electro-hydraulic control actuator for turbine valves  
In an electro-hydraulic control assembly for turbine valves, including a shaft for the turbine valve, a valve housing, electrical control means, an electro-hydraulic converter connected to the...
4466458 Control valve  
A control valve for the application of a desired pressure in a working circuit, having a pressure chamber connected with a pressure source, a control chamber separated during the rest position of...
4453450 Fluid motor  
A fluid motor (10) having a housing (12) with first (14), second (16) and third (18) chambers therein. A first partition (22) separates the first chamber (14) from the second chamber (16). A second...
4448338 Pneumatic nail driver  
In a pneumatic nail driver, compressed air drives a working piston in the driving direction within a working cylinder. An inlet valve controls the flow of compressed air into the working cylinder....
4409792 Hydraulic positioning system for high-impact applications  
A hydraulic positioning system for precisely and rapidly positioning objects of the type likely to impose impact loadings on the system. The system is particularly adaptable for use in sawmill...
4353286 Hydraulic control system with a pipeline antiburst safety device for a double acting drive cylinder  
A hydraulic control system with a pipeline antiburst safety device for a double acting drive cylinder, more particularly for adjusting and securing the position of a driven guide roller in the...
4349175 Valve actuator having a continuously charged accumulator  
An actuator is provided which is respondable to control fluid pressure for moving an operative means of a valve between open and closed positions. Valve means are movable between open and closed...
4319546 Hydraulic combustion engine  
A piston engine, that may comprise one or more piston assemblies, employs hydraulic pressure principles in combination with an internal combustion construction to minimize the fuel required to...
4316519 Self-energized power steering unit  
A self-energized, self-contained power steering unit is provided. The power steering unit requires no external power source for the pressurized fluid supplied therein to assist the steering....
4296910 Hydraulically controlled safety valve  
A safety valve is mounted on an underwater oil well and is remote-controlled from a central control station. The control station is connected to a receiving station, where the valve is disposed,...
4296671 Hydraulic brake booster and control valve therefor  
A hydraulic brake booster defines a pressure chamber (24) and includes a control valve (26). A sleeve (40) on the control valve includes a spacer (58) and the control valve includes an annular...
4290343 High volume poppet valve with orifice opening speed control  
A high volume valve for controlling flow of fluid from a source of fluid under pressure, such as in an accumulator, to an actuator used for testing specimens under high rates of loading. The valve...
4281585 Hydraulic brake booster and valve member  
A hydraulic brake booster includes a housing which defines a pressure chamber and a piston within the housing is movable in response to pressurized fluid within the pressure chamber to effectuate a...
4274290 Rapid opening, high flow control valve for hydraulic actuator  
A rapid opening valve assembly utilized in high rate specimen test systems which require that an actuator load a specimen at rates in the range up to one thousand inches per second and with...
4242867 Standby supply system for delivering pressure fluid to a user component  
The standby supply for delivering pressure fluid to a user component includes a fluid pump as a primary fluid source coupled to the user component by a first check valve, an accumulator as a...
4235154 Vibration motor  
A vibration motor comprising a rotor arranged within a cylindrical chamber having opposed radially arranged reciprocating pistons within cylinders opening into the chamber. Circumferential grooves...
4230018 Hydraulic booster with accumulator control  
A hydraulic power brake system in which a hydraulic power brake booster has an accumulator operable when there is insufficient power to operate the power brake with hydraulic pressure. The...
4226166 Control unit for the supply of a work unit fed in parallel from a hydraulic station common to other units  
Hydraulic control.The unit is characterized in that it is provided, between an inlet well and an outlet well for pressurized fluid, with an obturator urged in the closed position by a resilient...
4217758 Hydraulic brake booster with integral accumulator  
A hydraulic brake booster is disclosed which includes an integral accumulator to provide a fluid pressure source for emergency failsafe braking. The accumulator includes a bore defined within the...
4211352 Nailing machine  
A pneumatic, linear thrust hand tool, such as a nail driver wherein a charge of pressurized gas in a firing chamber acts, when a main valve is opened, to drive a ram downward. The main valve is...
4202174 Hydraulic drive  
A hydraulic drive according to the invention comprises a gas hydraulic accumulator and a chamber whose volume is equal to at least the consumption of fluid by a User, e.g. a hydraulic cylinder of a...
4145886 Tank supply fail safe  
A sealed tank normally receiving air under pressure is connected with respect to a shuttle valve so that when there is an accidental loss of pressure, the air in the tank moves the valve to a...
4085710 Hydraulic engine piston  
A two piston hydraulic fluid separated internal combustion cylinder system utilizing a cylinder having fuel inlet ports, ignition means, a viewing window, a filling plug; a first piston, hydraulic...
4074777 Pneumatic impact tool  
A pneumatic impact tool comprising a housing, an open ended cylinder inserted therein and a hammer piston reciprocably guided within the cylinder. In the forward end of the cylinder there is...
4041598 Pneumatically operated stapling apparatus and method  
A pneumatically operated stapling apparatus and method for driving a staple into a workpiece whenever the workpiece is moved into a stapling position between a staple driver and a backing member....
Matches 1 - 50 out of 100 1 2 >