Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Patent
1981-09-28
1983-11-01
Tokar, Michael J.
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
340636, 320 48, G01N 2746
Patent
active
044132344
ABSTRACT:
A battery-condition tester for a vehicle having a storage battery and a charger connected with the battery. The tester comprises a pair of light-emitting indicators, one of which is intended to indicate a low battery condition and the other a normal battery condition. Current-control means are provided, connected with the indicators and with the battery, to selectively energize one or the other of the indicators in response to either a low or else a normal battery voltage condition. A third light-emitting indicator is intended to signal an over-voltage condition. Associated with the third indicator is an additional current control means, and voltage-responsive means connected with the battery for turning on the additional current control means, to energize the third indicator. Additionally, means are provided for positively turning off the first two indicator devices at such time that the third indicator is illuminated, so that for any condition of charge of the battery, only one of the indicator devices in on at any particular time.
REFERENCES:
patent: 2225051 (1940-10-01), Heyer
patent: 3939421 (1976-02-01), Barringer
patent: 3974441 (1976-08-01), Van Den Haak
patent: 4020414 (1977-04-01), Paredes
patent: 4027231 (1977-05-01), Lohrmann
patent: 4163186 (1979-07-01), Haley
Martin Bradley Weinstein et al., "Guard Your Battery With PM's Charge Checker," Popular Mechanics, vol. 151, No. 5, May 1979, pp. 84, 86, 264.
Berlow Cynthia
Sun Chemical Corporation
Tokar Michael J.
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