Waterpower machine
US5765375A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 1997 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Jun 19, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B9/113
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A waterpower machine has a vertical cylinder, the lower end of which is open, a piston which is vertically reciprocable in the cylinder, a water chamber provided at the lower end of the cylinder wherein the water chamber has a water inlet and a water outlet, an inlet valve for controlling water inflow into in the water chamber through the water inlet, and an outlet valve for controlling water outflow from the water chamber through the water outlet. Both the water inlet and the water outlet are opened towards the periphery of the water chamber over the major portion of the water chamber circumference. The water inlet is at a different level from that of the water outlet. The inlet valve and the outlet valve comprise respective ones of a pair of annular valve members which are concentric with one another and with the cylinder and axially moveable between a closed position and an open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.