Washer pump provided with means for determining when the level o

Details Washer pump provided with means for determining when the level o Washer pump provided with means for determining when the level o

1991-12-03

1993-06-15

Kashnikow, Andres

Dispensing

With discharge assistant

With discharge volume varying means

222385, 222377, B67D 540

Patent

active

052194221

ABSTRACT:
A washer pump for sending, to a nozzle under pressure, cleaning liquid introduced thereinto from an inlet thereof provided in the interior of a washer tank and discharged from an outlet thereof is designed to allow an individual to determine the level of cleaning liquid in the washer tank. The washer pump includes: a cylindrical peripheral wall formed by extending the peripheral wall of the inlet upward so that the upper end of the cylindrical peripheral wall serves as the opening thereof; and a flow passage serving as a through-hole provided on the cylindrical peripheral wall at a lower portion thereof. Preferably, the through-hole is provided on the cylindrical peripheral wall such that the height of the through-hole is almost the same as that of the inlet or below the inlet. The through-hole may consist of a groove vertically extending in the direction from the upper end of the cylindrical peripheral wall toward a lower portion thereof. Thus, the interior of the washer tank communicates with the interior surrounded with the cylindrical peripheral wall.

REFERENCES:
patent: 1976902 (1934-10-01), Stoddard
patent: 2306310 (1942-12-01), Curtis
patent: 3055304 (1962-09-01), Ziegler
patent: 3390698 (1968-07-01), Carmichael et al.
patent: 3915351 (1975-10-01), Kiralfy
patent: 4173222 (1979-11-01), Muetterties
patent: 4260340 (1981-04-01), Lamaudiere

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