Apparatus for wave-making
US4276664A · kind A · utility
Inventor
Key dates
| Filing date | Jan 30, 1979 |
| Grant date | Jul 7, 1981 |
| Priority date | — |
| Expiry date | Jan 30, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H4/0006
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus is provided for making waves in bodies of water used for swimming, having a plurality of hollow open-bottom pistons mounted for reciprocation in alternating power and suction strokes in which the movement of each piston engaged in a power stroke is opposed to the movement of an adjacent piston engaged in a suction stroke; each piston confining a gas cushion between the top and any water within the lower portion of the piston that is under a superatmospheric pressure during a power stroke of the piston, and under a subatmospheric pressure during a suction stroke of the piston; whereby on the suction stroke each piston draws water into its interior via its passage and port from the body of water, and on the power stroke each piston pushes water from its interior via its passage and port back into the body of water, the resulting alternating pulses of water flow generating waves in the body of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.