Polarity indicator for a battery

Details Polarity indicator for a battery Polarity indicator for a battery

1996-12-16

1998-08-04

Nguyen, Vinh P.

Communications: electrical

Condition responsive indicating system

Specific condition

34081547, 34081548, 34081573, 324426, 324133, 320 48, 362184, 362200, G08B 2100, G01R 1914

Patent

active

057900370

ABSTRACT:
A polarity indicator (10) for identifying the polarity of the terminals (104 and 106) of a vehicle battery (102). The indicator includes a housing (12) which is mounted by a fastener (14) on to the vehicle battery. The top wall (12A) of the housing has positive and negative indicia (16 and 18) for assisting the user in identifying the terminals of the vehicle battery. An electrical circuit is mounted within the housing of the indicator. The circuit includes a pair of light bulbs (30), a battery (32) and a time delay opening switch (34). The indicator is activated by pressing the button (34A) of the switch to complete the circuit which causes the light bulbs to illuminate the positive and negative indicia of the indicator.

REFERENCES:
patent: 3936121 (1976-02-01), Leinberger
patent: 4272142 (1981-06-01), Zapf
patent: 4488147 (1984-12-01), Signorile
patent: 4913981 (1990-04-01), Hynes et al.
patent: 4924176 (1990-05-01), Tremblay
patent: 5111130 (1992-05-01), Bates

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