| Patents for F04B 3 - Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage (444) |
|---|
| 05/15/1984 | US4448574 Extra-high pressure water pump |
| 03/14/1984 | EP0102824A2 Low power electromagnetic pump |
| 02/14/1984 | US4431387 Hermetic refrigeration rotary motor-compressor |
| 02/14/1984 | US4431356 Hermetic refrigeration rotary motor-compressor |
| 01/24/1984 | US4427348 Duplex hydraulic and air oil well pump |
| 01/10/1984 | US4424920 Push-button type sprayer |
| 01/10/1984 | CA1160101A1 Pump |
| 09/20/1983 | CA1153992A1 Air-pressurized sprayer |
| 08/10/1982 | US4343596 Constant flow rate liquid supply pump |
| 04/27/1982 | CA1122479A1 Double-acting differential piston supply pump |
| 12/23/1981 | EP0042039A1 Push-button type sprayer |
| 12/08/1981 | US4304531 High pressure piston pumps |
| 10/14/1981 | EP0037496A1 Air-pressurized sprayer |
| 10/07/1981 | EP0037035A1 Air-pressurized sprayer |
| 02/03/1981 | US4248050 Double-yoke balanced compressor |
| 12/16/1980 | US4239460 Cryogenic pump for liquid gases |
| 10/01/1980 | EP0016209A1 Axial reciprocating piston pump with control and inversion of flow |
| 09/03/1980 | EP0014723A1 Compressor with piston and cylinder piston, both performing orbital movements |
| 06/25/1980 | EP0012467A1 Pump |
| 04/03/1980 | WO1980000599A1 Axial reciprocating piston pump with control and inversion of flow |
| 01/29/1980 | US4185946 Resilient intake and exhaust valve |
| 12/25/1979 | CA1068562A Fuel injection pumping apparatus |
| 11/13/1979 | US4174195 Rotary compressor and process of compressing compressible fluids |
| 04/18/1979 | EP0001463A1 Plunger pump |
| 04/17/1979 | US4149831 Double-acting differential piston supply pump |
| 01/30/1979 | US4137022 Rotary compressor and process of compressing compressible fluids |
| 01/30/1979 | US4137021 Rotary compressor and process of compressing compressible fluids |
| 01/23/1979 | US4135864 Rotary compressor and process of compressing compressible fluids |
| 09/12/1978 | US4113144 Syringes adapted to overcome a pressure resistance |
| 08/29/1978 | US4110060 High displacement-to-size ratio orbiting fluid mechanism |
| 06/06/1978 | US4093108 Syringe adapted to overcome a pressure resistance |
| 05/16/1978 | US4089442 Accumulative pressure pump |
| 03/28/1978 | US4081006 Fluid dispensing and mixing apparatus |
| 11/01/1977 | US4055978 Procedure for manufacturing hydraulic plunger-type pump bodies |
| 08/30/1977 | US4044655 High pressure plunger and method of manufacture |
| 08/23/1977 | US4043711 Lubricating oil pump |
| 06/14/1977 | US4029236 Two product dispenser with cooperating telescoping cylinders |
| 04/19/1977 | US4018545 Mix blending pump |
| 03/15/1977 | US4012173 Variable stroke compressor |
| 03/08/1977 | US4010675 Two stroke mechanism with rotary piston and cylinder-piston movement |
| 02/15/1977 | US4008012 Double-acting pump |
| 11/30/1976 | US3994418 Method of feeding material to a gas generator |
| 07/06/1976 | US3967634 Flow ratio control system |
| 03/30/1976 | US3947157 Single cylinder pump |