Chemistry: electrical current producing apparatus – product – and – With measuring – testing – or indicating means – For charge or liquid level
Patent
1996-11-06
1998-09-22
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
With measuring, testing, or indicating means
For charge or liquid level
73451, 73 32R, H01M 1048
Patent
active
058112030
ABSTRACT:
A display device of a storage battery for optically displaying a condition of an electrolytic solution stored in a casing of the storage battery comprises a pillar member having a transparent body having one end and other opposite end, the one end of the pillar member being engaged at an upper surface of the casing in a usable state so that the other opposite end thereof projects into the casing. An inclined end surface of the opposite end side thereof is inclined to a side surface of the pillar member at a predetermined angle so that an incident light transmitting from the one end side thereof permeates through the inclined end surface or is reflected thereby according to the condition of the electrolytic solution which is in contact with the inclined end surface. The display device further comprises a display member provided with display surfaces on which the light permeating through the inclined end surface or reflected thereby is projected, the display surfaces being different from each other to optically display the condition of the electrolytic solution.
REFERENCES:
patent: 3895964 (1975-07-01), Sakamoto
patent: 4320291 (1982-03-01), Uramoto
patent: 4989453 (1991-02-01), Hiiesalu
patent: 5180643 (1993-01-01), Nedbal
Kono Toshihiko
Yamaguchi Syuuichi
Daiden Co. Ltd.
Kalafut Stephen
Kananen Ronald P.
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