Reversible pump assembly

Details Reversible pump assembly Reversible pump assembly

1989-02-09

1990-02-13

Stout, Donald E.

Pumps

Reverse flow with unidirectional drive or unidirectional...

417442, 415146, F04B 3910, F04D 1800

Patent

active

049002350

ABSTRACT:
A windshield washer pump including comprising an impeller chamber having a reversible impeller rotatably mounted therein and an inlet for windshield washer fluid communicating therewith. Dual outlets communicate between the impeller chamber and opposite ends of an adjacent outlet chamber. A piston is slidably mounted in the outlet chamber intermediate axially aligned tubular discharge passages extending from the outlet chamber. Oppositely disposed projections are formed on the piston for being alternately urged into engagement with the tubular discharge passages, permitting the alternate pumping of fluid through the tubular discharge passages.

REFERENCES:
patent: 1687523 (1928-10-01), Staude
patent: 2567391 (1951-09-01), Mead
patent: 2992652 (1961-07-01), Fellberg
patent: 3753601 (1973-08-01), Hensley
patent: 4331295 (1982-05-01), Warihashi
patent: 4600361 (1986-07-01), Bianco
patent: 4653977 (1987-03-01), Fries
patent: 4679983 (1987-07-01), Pietryk
patent: 4728260 (1988-03-01), Ishii

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