Patents for F04C 9 - Oscillating-piston machines or pumps (230)
07/1990
07/17/1990US4941554 Hydraulic torque resistance device
07/10/1990WO1990007632A1 Power conversion machine with pistons rotating in pairs relative to each other in a spherical housing
05/1990
05/02/1990EP0365651A1 Device for dosing liquid or free-flowing materials
01/1990
01/31/1990EP0353133A1 Reciprocating-piston pump, especially a manually actuated one
11/1989
11/09/1989DE3814681A1 Vorrichtung zum dosieren von fluessigen oder fliessfaehigen stoffen Apparatus for dispensing liquids and materials fliessfaehigen
11/02/1989WO1989010488A1 Device for dosing liquid or free-flowing materials
06/1989
06/07/1989EP0318890A2 Pump with an oscillating piston
04/1989
04/05/1989CN1032225A Fully sealed magnetic pendulum pump
11/1988
11/02/1988CN87101507A Conical ring plate rotating piston pump
10/1988
10/26/1988CN87212679U Totally sealed magnetic oscillating pump
04/1988
04/26/1988CA1235605A1 Toroidal motor/pump
01/1987
01/13/1987US4636157 Toroidal motor or pump
10/1986
10/22/1986CN85103071A Oscillatory magnetic pump and vibrator magnetic pump
09/1985
09/04/1985EP0153766A1 Toroidal motor/pump
11/1984
11/28/1984EP0126236A1 New explosion-type engine
02/1983
02/01/1983US4371320 Semi-rotary hydraulic pump
01/1982
01/19/1982US4310930 Rigid-vane artifical heart
09/1981
09/02/1981EP0034641A1 Spherical piston pump
03/1981
03/10/1981CA1097225A1 Seal grid system for a rotary piston mechanism
10/1980
10/01/1980EP0016209A1 Axial reciprocating piston pump with control and inversion of flow
06/1980
06/10/1980US4207039 Seal grid system for a rotary piston mechanism
06/10/1980CA1079237A1 Mechanically operated dispensing device with means for increasing discharge pressure and dispensing time
04/1980
04/03/1980WO1980000599A1 Axial reciprocating piston pump with control and inversion of flow
03/1980
03/18/1980US4193743 Oscillatory pump for the transport of viscous materials
12/1979
12/04/1979US4176764 Mechanically operated mixing dispenser having a plurality of expansible chambers and a plurality of accumulating chambers
10/1979
10/30/1979CA1065188A1 Piston pump for conveying semi-fluid materials
09/1979
09/18/1979US4167941 Mechanically operated dispensing device for increasing discharge pressure and dispensing time
03/1979
03/06/1979CA1049846A1 Rotary machine
12/1978
12/26/1978US4131394 Method for transport of manure and a device according to the method
03/1978
03/21/1978US4080114 Oscillating positive displacement machine
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