| Patents for F01C 20 - Control of, monitoring of, or safety arrangements for, machines or engines (729) |
|---|
| 10/27/1981 | US4297090 Rotary expansion power unit with valve disc connected to crankshaft |
| 06/30/1981 | US4276006 System for cooling motor bearings |
| 05/05/1981 | US4265604 Rotary pneumatic tool with valve-closing pin actuated upon overspeed |
| 05/05/1981 | US4265265 Pneumatic tool governor |
| 04/30/1981 | WO1981001169A1 Rotary expansion power unit |
| 04/14/1981 | US4261691 Rotary screw machine with two intermeshing gate rotors and two independently controlled gate regulating valves |
| 01/28/1981 | EP0022781A1 Gear machine. |
| 12/30/1980 | US4241713 Rotary internal combustion engine |
| 12/02/1980 | US4236589 Vacuum motor |
| 09/16/1980 | US4222716 Combined pressure matching and capacity control slide valve assembly for helical screw rotary machine |
| 04/16/1980 | EP0010080A1 Overspeed safety device |
| 04/03/1980 | WO1980000591A1 Gear machine |
| 02/12/1980 | US4188176 Variable displacement rotary fluid energy converter |
| 01/22/1980 | US4184819 Secondary speed sensor for governed air grinders |
| 12/04/1979 | US4177024 Vane air motor with eccentric adjustment ring and bearing ring for vane ends |
| 01/02/1979 | CA1045482A1 Air tool overspeed shutoff device |
| 12/12/1978 | CA1044145A1 Pressure lubrication to apex corner seal |
| 10/17/1978 | US4120604 Portable pneumatic nut running tool having air shut-off controls |
| 10/17/1978 | CA1040510A1 Hydraulic motor brake |
| 09/19/1978 | CA1038664A1 Air shut-off tool |
| 08/22/1978 | US4108049 Variable torque fluid device |
| 04/04/1978 | US4082480 Fluid pressure device and improved Geroler® for use therein |
| 02/21/1978 | US4074957 Screw compressors |
| 05/17/1977 | US4023627 Air shut-off tool |
| 04/19/1977 | US4018191 Rotary internal combustion engine |
| 09/21/1976 | US3981637 Variable displacement rotary machine with oscillating piston slides |
| 08/31/1976 | US3977818 Throttling means for geothermal streams |
| 06/01/1976 | US3960470 Hydraulic motor brake |
| 01/06/1976 | US3930764 Air tool overspeed shutoff device |