Patents for F01B 19 - Positive-displacement machines or engines of flexible-wall type (376)
01/1990
01/31/1990CN2052065U Flexible connection reciprocating vacuum pump
12/1989
12/21/1989DE3918955A1 Technical simulation of the biological muscle principle as a technical muscle. Robot resembling an animal or a human being and having technical muscles. Parts of this robot as prostheses. Further applications of the muscle: as lifting and tensioning device, as muscle motor, for positioning of an object by several muscles, as adjustment means for the range of spring
12/19/1989US4887516 Clamping arrangement for diaphragm piston assembly
12/12/1989US4885983 Self-retaining diaphragm seal
11/1989
11/28/1989US4882980 Tandem brake booster
11/21/1989US4881452 Tandem vacuum booster and diaphragm for same
11/21/1989US4881451 Tandem vacuum booster and diaphram for same
10/1989
10/11/1989CN2045790U Fully-sealing bellows pump
10/03/1989US4870821 Reciprocation apparatus with sealing mechanism
09/1989
09/19/1989US4867121 Piston system for use in an internal combustion engine
08/1989
08/08/1989US4854428 Double-acting hydraulic piston-and-cylinder device
05/1989
05/23/1989US4831915 Dual diaphragm three position actuator
04/1989
04/25/1989US4824338 Pump arrangement which includes axially extending cylindrical ring noses on coned rings with a centering ring and seal ring radially of the face wherein two of the ring nose are oppositionally directed and laid together
04/24/1989EP0246275A4 Thermally powered engine.
04/20/1989DE3727989A1 Assemblies carrying a fluid flow with axially sprung elements defining chambers for pressures up to several thousands of atmospheres
04/20/1989DE3711633A1 Assemblies carrying a fluid flow with axially sprung elements defining chambers for pressures up to thousands of atmospheres
04/18/1989US4822255 Pump for pressures exceeding one thousand atmospheres by the provision of a half-pressure chamber around a high pressure chamber between coned ring elements
03/1989
03/29/1989EP0309441A2 Double acting hydraulic piston cylinder unit
03/23/1989DE3729726A1 Membrane machine unit
12/1988
12/27/1988US4793239 Fluid handling device
12/01/1988DE3714153A1 Diaphragm machine unit
09/1988
09/13/1988US4769992 Reciprocation apparatus with sealing mechanism
05/1988
05/24/1988US4745846 Devices which take in and expel fluid by a chamber which may border a coned ring
04/1988
04/19/1988US4738186 Diaphragm for a servomotor
12/1987
12/15/1987US4712381 Fluid handling elements and combustion engines
12/08/1987US4711158 Linear motion actuator with spring centering means
11/1987
11/25/1987EP0246275A1 Thermally powered engine.
10/1987
10/20/1987US4701113 Pump arrangement which includes a working chamber which is bordered by a coned ring with a seal lip on the inner face of the coned ring
09/1987
09/10/1987DE3606922A1 Arrangements for pressures of up to several thousand bar in assemblies carrying a flowing fluid
09/01/1987US4690623 Fluid pumps, fluid motors and devices, which include a coned ring
06/1987
06/04/1987WO1987003357A1 Thermally powered engine
02/1987
02/25/1987EP0126140B1 Variable pneumatic pressure mechanism
10/1986
10/21/1986US4617801 Thermally powered engine
10/14/1986US4616556 Flexible compressible piston
05/1986
05/13/1986CA1204291A1 Isothermal positive displacement machinery
04/1986
04/29/1986CA1203739A1 Variable pneumatic pressure force-transmitting mechanism
02/1986
02/04/1986US4567814 Interchangeable connector and diaphragm assembly
01/1986
01/28/1986US4566371 Variable pneumatic pressure force-transmitting mechanism
12/1985
12/10/1985US4557671 Arrangement of connecting a diaphragm with an actuator rod in a diaphragm-operated device
12/10/1985US4557347 Fluid pumps, fluid motors and devices, wherein they are applied
11/1985
11/12/1985US4552054 Radial piston machine, employing a medial rotor bearing
08/1985
08/13/1985US4534270 Vacuum booster assembly
05/1985
05/14/1985US4516474 Tandem diaphragm brake booster
01/1985
01/29/1985US4495854 Power servo booster
11/1984
11/07/1984EP0124223A2 Diaphragm-operated motor
07/1984
07/31/1984US4462301 Bourdon tube actuator
07/03/1984CA1170241A2 Fire-safe valve actuator
06/1984
06/07/1984WO1984002159A1 Variable pneumatic pressure mechanism
01/1984
01/18/1984EP0098679A2 Pump or motor with a flexible diaphragm
09/1983
09/13/1983US4403539 Arrangement for connecting a diaphragm with an actuator rod in a diaphragm-operated device
04/1983
04/26/1983US4381179 Pumps with floating wrist pins
03/1983
03/23/1983EP0074379A1 Improvement in high pressure double action pumps
09/1982
09/30/1982WO1982003246A1 Improvement in high pressure double action pumps
09/07/1982US4347778 Reversible fluid unit
08/1982
08/03/1982CA1128971A1 Self pumping seal for a reciprocating member
07/1982
07/13/1982CA1127402A1 Refrigerant motor
02/1982
02/09/1982US4314447 Refrigerant motor
01/1982
01/05/1982US4309150 Peristaltic motors
12/1981
12/15/1981US4305327 Pressurized gas engine
10/1981
10/20/1981CA1110936A1 Diaphragm assembly
08/1981
08/25/1981US4285197 Isothermal chamber and heat engines constructed using said chamber
07/1981
07/07/1981CA1104354A1 Free-piston regenerative hot gas hydraulic engine
04/1981
04/30/1981WO1981001182A1 Self pumping seal for a reciprocating member
11/1980
11/12/1980EP0018908A1 Pneumatic linear motor
10/1980
10/14/1980US4227444 Aneroid bellows assembly
09/1980
09/30/1980US4224860 Diaphragm assembly
08/1980
08/05/1980US4215548 Free-piston regenerative hot gas hydraulic engine
04/1980
04/30/1980EP0010403A1 Free-piston regenerative hydraulic engine
10/1979
10/09/1979US4170166 Air motor with expansible chamber
04/1979
04/03/1979US4147094 Vacuum operated device
01/1979
01/16/1979US4134306 Rotary actuator
07/1977
07/12/1977USRE29302 Bag diaphragms and bag diaphragm operated air dampers
12/1976
12/21/1976US3998130 Pressure driven motor
10/1976
10/19/1976US3986435 Gas compressors and motors
08/1976
08/17/1976US3974744 Engines, or prime movers
08/10/1976US3973471 Motors
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