Manual driven valved piston reciprocating liquid pump

Details Manual driven valved piston reciprocating liquid pump Manual driven valved piston reciprocating liquid pump

1995-04-10

1996-07-09

Freay, Charles

Pumps

Expansible chamber type

Valved piston

417569, 921691, 92144, 92164, F04B 5312

Patent

active

055338798

ABSTRACT:
A liquid pump comprises an insulated cylinder which is provided with a top seat and a bottom seat. The top seat is provided with a liquid inlet while the bottom seat is provided with a liquid outlet. A piston rod is fastened with the top seat and is provided at the bottom thereof with a one-way piston valve device capable of creating a vacuum in an upper chamber of the cylinder. The bottom seat comprises a receiving space in which a one-way valve device is disposed. The liquid contained in a vessel is drawn up by suction via the liquid inlet. The liquid so drawn up is discharged via the liquid outlet.

REFERENCES:
patent: 855647 (1907-06-01), Mallonee
patent: 2931313 (1960-04-01), Hughes
patent: 3018779 (1962-01-01), Tyler et al.
patent: 3260217 (1966-07-01), Thresher
patent: 5192001 (1993-03-01), Bianco

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