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| Number | Title | Issue Date |
| 7900448 | Pulse generator and impulse machine for a cutting tool The invention relates to a pulse generator (18) in an impulse generator (2) for a cutting tool (12), which pulse generator (18) is intended to transfer energy from a propulsion device (14) to impulses in the tool (12), where... | 03/08/2011 |
| 7228846 | Apparatus, system, and method for reducing pressure pulsations and attenuating noise transmission in a fuel system An apparatus, system, and method of damping pressure pulsations and attenuating noise transmission in a fuel supply system. The apparatus includes a first end in fluid communication with a fuel supply line, a second end in fluid communication with a manifold, and a ... | 06/12/2007 |
| 7225725 | Bi-directional pneumatic motor A pneumatic motor for providing bi-directional linear motion including a motor housing having a cylinder bore and a piston mounted on a piston rod positioned in the cylinder bore. The ends of the piston rod extend beyond the ends of the cylinder bore. The cylinder b... | 06/05/2007 |
| 7003951 | Hydraulic system In a hydraulic system (1) for motor vehicles in particular, comprising a master cylinder (4), a slave cylinder (5) and a hydraulic medium line (15) connecting the two, the flexibility and hydraulic rigidity are improved by the fact that t... | 02/28/2006 |
| 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 member actuated by a motor. A slave cylinder is connected to the master cy... | 12/13/2005 |
| 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 series of fluid displacements which are accumulated in a hydrau... | 11/09/1993 |
| 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 cylinder (11) repeatedly drives a hammer piston (15) to i... | 11/03/1992 |
| 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 parallel to the pressure intensifier piston, each disposed... | 04/05/1988 |
| 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 to intensify the working fluid output pressure and a work... | 05/26/1987 |
| 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 generator via the pipe. The pulses form standing waves wit... | 12/31/1985 |
| 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 the other side a hydraulically operable piston is provide... | 04/09/1985 |
| 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 connected, but have different effective bore areas, a co-working... | 09/07/1982 |
| 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 member having a transparent bottom wall, a cylindrical si... | 06/22/1982 |
| 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 protruding into the water. To increase the pressure of th... | 02/24/1981 |
| 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 lifted off its seat by the application of pressure to liquid in... | 02/03/1981 |
| 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 lift cylinder piston is driven by fluid pressure provided fr... | 12/04/1979 |
| 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 a compacting member. The movement of the piston in the cy... | 01/18/1977 |
