Chemistry: electrical current producing apparatus – product – and – With measuring – testing – or indicating means – For charge or liquid level
Patent
1988-07-11
1989-10-17
Walton, Donald L.
Chemistry: electrical current producing apparatus, product, and
With measuring, testing, or indicating means
For charge or liquid level
H01M 1048
Patent
active
048746797
ABSTRACT:
A battery casing for containing an electrolytic is equipped with a window (6) through which the interior of the casing (1) can be seen. An indicating device (9) for providing indications which differ according to changes in the electrolyte conditions' is installed inside the casing for viewing through the window so that such electrolyte conditions as the amount and specific gravity of the electrolyte (44) can be indicated. The indicating device has a frame member (10) separate from the casing and a float (11) supported by the frame member whereby the float can move vertically in response to a change in the electrolyte conditions. The indicating device is installed with the frame member extending along the inner surface of the window-equipped lateral wall of the casing in such a manner the the float can be seen from the outside through the window. A joining mechanism (20-23, and 36, 37: 153 and 154) is used for installing the frame member from the above in the casing. In order to prevent bubbles produced in the electrolyte from adhering to the float, an bubble preventing plate (143) may be installed to cover the float.
REFERENCES:
patent: 1012298 (1911-12-01), Tormin
patent: 1699633 (1929-01-01), Sears
patent: 1777436 (1930-10-01), Holland
patent: 1865250 (1932-06-01), Haungs
patent: 1956984 (1934-05-01), Dunzweiler et al.
patent: 2054691 (1936-09-01), Browne
patent: 2072553 (1937-03-01), Graves et al.
patent: 3340736 (1967-09-01), Suematsu
Fasse W. G.
Kane, Jr D. H.
Miyagawa Kasei Industry Co., Ltd.
Walton Donald L.
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