| Patents for F04B 1 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (10,723) |
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| 04/20/1976 | US3951044 Rotary radial piston machines with fluidflow supply in substantial axial direction |
| 04/13/1976 | US3949648 Rotary radial piston machine with radial extension on the piston shoe ends |
| 04/13/1976 | US3949647 Hydraulic mechanism, such as a motor or a pump, having radial pistons adapted to perform a plurality of strokes per revolution |
| 04/06/1976 | US3948149 Piston machine construction |
| 03/23/1976 | US3945766 Radial piston machine |
| 03/23/1976 | US3945764 Variable displacement pump control assembly |
| 03/23/1976 | US3945763 Rotating lever-actuated pumping apparatus |
| 03/23/1976 | US3945303 Hydrostatic piston machine |
| 03/16/1976 | US3943828 Rotary machines |
| 03/16/1976 | US3943827 Pumps for motor fluid mechanisms |
| 03/02/1976 | US3941515 Centrifugal fluid pump |
| 03/02/1976 | US3941514 Torque limiting control |
| 03/02/1976 | US3941513 Variable displacement pump control assembly |
| 03/02/1976 | US3941493 Device for mounting spherical piston-rod ends of barrel-type hydraulic machine |
| 02/24/1976 | US3939717 Power transmitting mechanism for reciprocating engines or pumps |
| 02/17/1976 | US3938397 Power transmitting mechanism |
| 02/10/1976 | US3937130 Low friction seal assembly |
| 02/03/1976 | US3935796 Variable hydraulic pumping apparatus |
| 01/20/1976 | US3933083 Variable displacement cylindrical pump |
| 01/20/1976 | US3933082 Axial piston type machine |
| 01/13/1976 | US3931755 Pump |
| 01/06/1976 | US3930756 Metering pulse pump |
| 01/06/1976 | US3930437 Piston structure, particularly for hydraulic machines |