Pumps – Processes
Patent
1987-01-02
1989-05-30
Freeh, William L.
Pumps
Processes
417552, 417233, 92109, 92137, F04B 1700, F04B 3500
Patent
active
048346209
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.
REFERENCES:
patent: 350805 (1886-10-01), Chew
patent: 1756089 (1930-04-01), Hunter
patent: 3040673 (1962-06-01), Dunbar
patent: 3270687 (1966-09-01), Hettinga
patent: 3547083 (1970-12-01), Peterson
patent: 3684410 (1972-08-01), Fitzgerald
patent: 4249750 (1981-02-01), Kantner
patent: 4303833 (1981-12-01), Eckel
Aardvark Corporation
Duffy Christopher
Freeh William L.
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