Small-sized pump

Details Small-sized pump Small-sized pump

1987-06-03

1989-01-31

Freeh, William L.

Pumps

Three or more cylinders arranged in parallel, radial, or...

417566, 92 98D, 92 48, F04B 128, F04B 3910

Patent

active

048012491

ABSTRACT:
A small-sized pump comprising a common valve chamber, a plural number of pump chambers respectively arranged round the common valve chamber and each having a diaphragm, a drive member provided in the inclined state and serving to move the diaphragms upward and downward, and a tubular supporting member extending obliquely downward from the central portion of the drive member, the small-sized pump being arranged to make the end of the tubular supporting member perform circular motion and to thereby drive the drive member so as to move the diaphragms upward and downward so that respective pump chambers perform pumping actions with a predetermined time lag, the small-sized pump being thereby arranged to have high pumping efficiency.

REFERENCES:
patent: 1715735 (1929-06-01), Banning, Jr.
patent: 2457339 (1948-12-01), Bertea
patent: 2991723 (1961-07-01), Zubaty
patent: 3029742 (1962-04-01), Curtis
patent: 3987938 (1976-10-01), Cooprider
patent: 4090818 (1978-03-01), Hope
patent: 4115042 (1978-09-01), Schroeder
patent: 4486151 (1984-12-01), Wesala
patent: 4507058 (1985-03-01), Schoenmeyer
patent: 4570833 (1986-02-01), Vanderjagt
patent: 4610605 (1986-09-01), Hartley

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