| Patents for F15B 3 - Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids (1,558) |
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| 10/28/1993 | WO1993021444A1 Fluid intensifier |
| 10/26/1993 | US5255517 Control device for hydraulic operating cylinders of a combined lifting platform and a closing wall of a vehicle |
| 10/19/1993 | CA2024432C Means for receiving and subsequently emptying hydraulic fluid from a hydraulic system |
| 09/23/1993 | DE4206759A1 Sealing system for high pressure converter - uses sliding ring seal and releasable locking piece |
| 08/19/1993 | WO1993016288A1 Pressure transformer |
| 08/12/1993 | DE4203627A1 Pressure converter using water as primary and secondary medium - combines two pistons with plungers arranged in parallel controlled via common pipe |
| 08/11/1993 | EP0554760A1 Hydropneumatic pressure intensifier |
| 06/29/1993 | CA1319563C Pressure exchanger for liquids |
| 06/09/1993 | EP0491750B1 Control device for hydraulic working cylinders of a loading board wall of a vehicle |
| 03/30/1993 | US5197285 Modular digital actuator |
| 03/18/1993 | WO1993005300A1 Modular digital actuator |
| 01/07/1993 | DE4122204A1 Pneumatic hydrostatic pressure intensifier for machine tool - which has three piston circuit to control travel during idling stroke |
| 09/01/1992 | US5143429 Hydraulic modulator with equal, opposing chambers formed by a piston |
| 08/19/1992 | EP0498825A1 A pressure exchanger. |
| 08/12/1992 | EP0298097B1 Pressure exchanger for liquids |
| 07/01/1992 | EP0491750A1 Control device for hydraulic working cylinders of a loading board wall of a vehicle. |
| 07/01/1992 | EP0491705A1 Power booster |
| 05/21/1992 | DE4036257A1 Hydraulic changeover valve - functions between pressure converter, high pressure converter and user unit |
| 05/20/1992 | CN1061265A Dynamic and static pressure mass addition machine |
| 05/12/1992 | US5111659 Device for adapting the characteristic curve of a hydraulic accumulator to the characteristic curve of a consumer |
| 04/23/1992 | DE4032781A1 Hand adjustable hydraulic pressure booster - has lance capable of being introduced into hydraulic cavity |
| 04/15/1992 | EP0340256B1 Device for adapting the characteristic curve of a hydraulic accumulator to that of a consumer |
| 04/01/1992 | CN1016089B Automatic hydraulic control pressure booster |
| 03/11/1992 | CN2098586U Double-action reciprocating booster |
| 01/20/1992 | CA2021523A1 Intensifier with floating barrels |
| 01/06/1992 | WO1992001155A1 Power booster |
| 01/06/1992 | CA2065239A1 Power booster |
| 12/04/1991 | CN1056664A Copper liquid energy recovering device for nitrogenous fertilizer producing |
| 10/29/1991 | US5061175 Clamping cylinder system |
| 09/24/1991 | US5050380 Means for receiving and subsequently emptying hydraulic fluid from a hydraulic system |
| 09/18/1991 | EP0261180B1 Anti-contamination flow control in liquids |
| 08/20/1991 | US5040369 Method and apparatus for topping off a hydropneumatic pressure intensifier with oil |
| 08/14/1991 | CN2082781U Static pressure intensifier |
| 07/03/1991 | EP0435196A1 Pressure converting device |
| 05/16/1991 | WO1991006781A1 A pressure exchanger |
| 05/16/1991 | CA2072607A1 Pressure exchange having axially inclined rotor ducts |
| 03/14/1991 | WO1991004169A1 Control device for hydraulic working cylinders of a loading board wall of a vehicle |
| 03/14/1991 | CA2066727A1 Control device for hydraulic working cylinders of a loading board wall of a vehicle |
| 09/11/1990 | US4955195 Fluid control circuit and method of operating pressure responsive equipment |
| 07/04/1990 | CN1043556A Method for using thermodynamic expansion valve on constant pressure expansion system |
| 05/09/1990 | EP0367143A2 Clamping cylinder system |
| 05/08/1990 | US4922719 Fluidic transformer with sealed cylinder and check valves in pistons |
| 02/28/1990 | EP0355780A1 Method for filling a hydro-pneumatic pressure amplifier with oil, and apparatus therefor |
| 02/22/1990 | DE3841426C1 Drive of a pivotable flap for the fluid-tight closing of a band-filter apparatus |
| 02/13/1990 | US4899572 Pneumatic-hydraulic booster type driving device for the cushion-knockout mechanism associated with the slide of a press-machine |
| 01/08/1990 | EP0261180A4 Anti-contamination flow control in liquids. |
| 12/19/1989 | US4887942 Pressure exchanger for liquids |
| 11/08/1989 | EP0340256A1 Device for adapting the characteristic curve of a hydraulic accumulator to that of a consumer. |
| 09/12/1989 | US4864914 Blowout preventer booster and method |
| 07/26/1989 | CN2041738U Liquid pressure boost and adjusting device |
| 07/11/1989 | US4845982 Hydraulic circuit for use in wireline formation tester |
| 04/20/1989 | WO1989003334A1 Device for adapting the characteristic curve of a hydraulic accumulator to that of a consumer |
| 04/12/1989 | CN2035814U Hand-pushing hydraulic intensifier |
| 04/05/1989 | CN2035409U All-automatic hydraulic intensifier |
| 03/15/1989 | CN2034210U Variable volume, power-saving air and fluid intensifier |
| 03/14/1989 | US4811652 Constant differential overpressure device |
| 11/29/1988 | US4787828 Power transmission |
| 10/12/1988 | EP0285817A2 Inter-fluid transmitter |
| 07/14/1988 | WO1988005133A1 Pressure exchanger for liquids |
| 07/13/1988 | CN87106814A Hydraulic transmission mechanism with two kinds of transmission liquid |
| 07/06/1988 | EP0273721A2 A booster type driving device for a press-machine |
| 03/30/1988 | EP0261180A1 Anti-contamination flow control in liquids. |
| 03/30/1988 | CN86106341A Reversing device for pressure booster |
| 03/29/1988 | US4733599 Apparatus for controlling the flow of a pressure fluid in a motor |
| 03/23/1988 | CN86105903A Automatic cylinder and supercharger of fluid |
| 02/18/1988 | DE3627425A1 Electrohydraulic amplifier |
| 10/08/1987 | WO1987005973A1 Anti-contamination flow control in liquids |
| 08/26/1987 | EP0233178A1 Fluid driven power plant |
| 08/20/1987 | DE3605046A1 Pressure-medium power transformer with two separate pressure-medium circuits |
| 08/11/1987 | CA1225450A1 Pneumatic servo assembly for an electro-pneumatic converter |
| 05/20/1987 | CN85203972U Reversing arrangment for supercharger |
| 04/21/1987 | US4659294 Hydrualic pressure amplifier |
| 04/01/1987 | EP0216508A2 A liquid intensifier unit |
| 03/19/1987 | DE3532136A1 Electrohydraulic power amplifier |
| 02/26/1987 | WO1987001161A1 Fluid driven power plant |
| 02/10/1987 | CA1217696A Hydraulic intensifier |
| 01/20/1987 | US4637209 Fluid driven power plant |
| 11/26/1986 | EP0109417B1 Hydropneumatic pressure converter |
| 11/12/1986 | CN85103772A Hydraulic cylinder with power multiplication |
| 11/11/1986 | US4621988 Liquid intensifier unit |
| 10/22/1986 | CN85205660U Vacuum booster with two channels for hydraulic brake |
| 09/24/1986 | EP0195144A1 Fluidic transformer apparatus with feedback |
| 09/09/1986 | CA1211026A1 Pressure device |
| 08/27/1986 | EP0192580A1 Intensifier of liquid pressure |
| 08/19/1986 | US4606708 Internal combustion driven pumping system and variable torque transmission |
| 07/22/1986 | US4601642 Hydraulic pressure intensifier |
| 05/27/1986 | US4590845 Pneumatic servo booster |
| 04/22/1986 | US4583567 Valves |
| 04/16/1986 | EP0085080B1 Control circuit for a pneumo-hydraulic pressure intensifier |
| 04/02/1986 | CN85202199U Oil shielding system of pump |
| 04/01/1986 | CA1202542A1 Valves |
| 09/17/1985 | US4541243 Internal combustion driven pumping system and variable torque transmission |
| 07/02/1985 | US4526000 Pressure intensifier |
| 06/18/1985 | CA1188982A1 Submerged tool rework connector |
| 04/23/1985 | US4512151 To intensify fluid pressure |
| 04/09/1985 | US4509330 Pneumatically controlled pressure transducer for operating hydraulic work tools |
| 03/19/1985 | US4505115 Fluidic transformer apparatus with feedback |
| 10/23/1984 | US4478561 Hydraulic intensifier |
| 10/23/1984 | US4478557 Hydraulic power transducer |
| 10/03/1984 | EP0120594A2 Electro-pneumatic transducer assemblies |