Self wiping dipstick

Details Self wiping dipstick Self wiping dipstick

1990-11-05

1992-03-31

Cuchlinski, Jr., William A.

Geometrical instruments

Distance measuring

Sounding type

33722, 33728, 33730, 15210B, G01F 2304, F01M 1112

Patent

active

050995847

ABSTRACT:
A dipstick is suspended from a pivoting mount in the center of a cap. When performing a fluid level check, this cap is loosened from a wiper plug, which remains stationary in its tube housing as the dipstick is withdrawn through it. A series of internal wipers clean the dipstick as it passes through the wiper plug. Wiped fluids return to the fluid reservoir via undercuts in the individual wiper blades. The clean dipstick is then reinserted into the wiper plug to full depth, and the cap retightened on the wiper plug. The cap, dipstick, and wiper plug are then withdrawn together by pulling upwards from their tube housing. The actual fluid level in the reservoir will now show on the dipstick.

REFERENCES:
patent: 1658774 (1928-02-01), Taub
patent: 3296703 (1967-01-01), Stade et al.
patent: 3591886 (1971-07-01), Denver
patent: 3703038 (1972-11-01), Smith
patent: 4110909 (1978-09-01), Mayr et al.
patent: 4422204 (1983-12-01), Long, Jr.
patent: 4558520 (1985-12-01), Forde, Jr.
patent: 4761886 (1988-08-01), Wilson
patent: 4780925 (1988-11-01), Sherman
patent: 4942669 (1990-07-01), Schnedl
patent: 4965942 (1990-10-01), Hoszowski

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