Low horsepower apparatus and technique for raising liquid above the static surface level thereof
US4834620A · kind A · utility
8Cited by
8References
39Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 2, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Jan 2, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B47/024
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
To achieve a flywheel effect and lower the power necessary to drive it, a float pump is modified and put to use in such a way that one-half of the stroke of the pump is powered by the negative or positive buoyancy of the system of reciprocating components through which the pump is operated. As a result, the pump can be powered by even human leg power, such as by driving it through a pair of cranks pedalled in the manner of a bicycle. A reciprocable drive mechanism for the pump is also disclosed and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.