Reservoirs for liquids

Details Reservoirs for liquids Reservoirs for liquids

1977-05-31

1979-09-04

Shoap, Allan N.

Signals and indicators

Indicators

Liquid level

60534, 60585, 73323, 220 82R, B65D 2556, G01F 2302

Patent

active

041664310

ABSTRACT:
In a reservoir comprising a container for liquid at least one portion of the top wall of the container is depressed to form a window, the depressed portion and at least a part of the surrounding area being transparent or translucent so that the reservoir can be filled with a liquid until the liquid is in visible contact on the under surface of the window with the surrounding part untouched.

REFERENCES:
patent: 773154 (1904-10-01), McFerran
patent: 2550152 (1951-04-01), Kennedy
patent: 2554557 (1951-05-01), Brown et al.
patent: 2765661 (1956-10-01), Thomas
patent: 3017987 (1962-01-01), Moslo
patent: 3096648 (1963-07-01), Dombeck et al.
patent: 3203579 (1965-08-01), Reynolds
patent: 3215304 (1965-11-01), Rohe
patent: 3405525 (1968-10-01), Thomas
patent: 3432380 (1969-03-01), Weber
patent: 3543581 (1970-12-01), Ryder
patent: 3989056 (1976-11-01), Reinartz

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