| Patents for F01L 23 - Valves controlled by impact of piston, e.g. in free-piston machines (250) |
|---|
| 02/16/1983 | EP0072363A2 Steam-powered engine |
| 12/21/1982 | US4364303 Air operated reciprocating tool |
| 10/19/1982 | US4354421 Energy recovery reciprocating engine |
| 08/24/1982 | US4345926 Expansion engine |
| 08/10/1982 | US4343225 Fluid actuator |
| 05/11/1982 | US4329123 Diaphragm air pump assembly |
| 04/20/1982 | US4325285 Compressed air motor |
| 03/16/1982 | US4319570 Tracheal suction pump designed primarily for aspiration purposes |
| 01/27/1982 | EP0044738A1 Apparatus and method for recovering energy from pressurised reactor effluent |
| 11/24/1981 | US4302159 Ambient air timing device |
| 10/27/1981 | CA1111321A1 Pneumatic hack saw |
| 08/18/1981 | US4283995 Reciprocating engines |
| 04/22/1981 | EP0027182A2 Expansion engine |
| 12/23/1980 | US4240329 Fluid pressure servo detent mechanism |
| 12/11/1980 | WO1980002722A1 Pneumatic engine with piston slide |
| 10/14/1980 | US4227866 Solar energy device |
| 07/29/1980 | US4214854 Hydraulically actuated pump assembly having mechanically actuated valve means |
| 07/15/1980 | US4212589 Device for producing an artificial blood circulation |
| 03/11/1980 | US4192419 Conveyor |
| 02/20/1980 | EP0007945A1 Diaphragm pumps |
| 01/22/1980 | US4184409 Hydraulic engine |
| 01/15/1980 | CA1069761A1 Tracheal suction pump designed primarily for life-saving purposes |
| 09/25/1979 | US4168655 Power output control system for vapor engine |
| 09/04/1979 | US4166411 Fluid-operated linear actuator |
| 09/04/1979 | US4166410 Pneumatic motor |
| 08/14/1979 | US4164166 Solar energy device |
| 04/19/1979 | WO1979000197A1 Diaphragm pumps |
| 08/29/1978 | US4110058 Vacuum-operated liquid pump |
| 07/25/1978 | US4102609 Valve control system for air powered vacuum pump |
| 07/25/1978 | US4102249 Pneumatically driven devices |
| 07/18/1978 | US4100936 Three-way hydraulic valve |
| 07/11/1978 | US4099447 Hydraulically operated oil well pump jack |
| 05/02/1978 | US4087206 Subsurface pumping unit incorporating heavy duty reversing valve and method of operating |
| 03/21/1978 | US4079660 Safety valve for piston type pneumatic powered motor |
| 03/07/1978 | US4077303 Apparatus for generating an impact force |
| 01/31/1978 | US4070948 Pneumatic impact devices |
| 09/27/1977 | US4050357 Steam admission valve and variable clearance volume steam cylinder |
| 09/27/1977 | US4050356 Apparatus for controlling a fluid medium |
| 08/23/1977 | US4043709 Adjustable stop assembly |
| 07/12/1977 | US4034648 Reciprocating cylinder assembly for self-propelled sprinkler systems |
| 06/14/1977 | US4029440 High pressure fluid intensifier and method |
| 05/10/1977 | US4022108 Hydraulically operated percussion device |
| 05/03/1977 | US4021164 Pump having reciprocating pumping means |
| 03/15/1977 | US4011795 Impact tool |
| 12/28/1976 | US3999896 Continuously operating piston pump |
| 11/16/1976 | US3991655 Hydroacoustic apparatus and valving mechanisms for use therein |
| 07/20/1976 | US3969987 Hydroacoustic apparatus and valving mechanisms for use therein |
| 07/20/1976 | US3969984 Hydroacoustic apparatus and valving mechanisms for use therein |
| 03/23/1976 | US3945768 Fluid motor drives pump having an active inlet valve |
| 02/10/1976 | US3937599 Pumping system using solar energy |