Polarity independent battery jumper cables or charger with autom

Details Polarity independent battery jumper cables or charger with autom Polarity independent battery jumper cables or charger with autom

1996-07-25

1998-08-18

Nguyen, Khiem

Electrical connectors

With flaccid conductor and with additional connector spaced...

Adapted to connect to a battery

439490, H01R 1100

Patent

active

057951829

ABSTRACT:
A polarity independent set of battery jumper cables for jumpering a first battery to a second battery includes a relative polarity detector for detecting whether two batteries are configured cross or parallel, a three-position high current capacity crossbar pivot switch responsive to the relative polarity detector for automatically connecting the plus terminals of the two batteries together and the minus terminals of the two batteries together regardless of whether the configuration detected is cross or parallel, and an undercurrent detector and a delay circuit for returning the device to its ready and unconnected state after the device has been disconnected from one of the batteries. The crossbar pivot switch includes two pairs of contacts, and a pivot arm that pivots about two separate points to ensure full electrical contact between the pairs of contacts. The invention can also be used to produce a battery charger that may be connected to a battery without regard to the polarity of the battery.

REFERENCES:
patent: 3413487 (1968-11-01), Gershen
patent: 3700999 (1972-10-01), Gourse
patent: 4166241 (1979-08-01), Grant
patent: 4349774 (1982-09-01), Farque
patent: 4393432 (1983-07-01), Neuhaus et al.
patent: 4420212 (1983-12-01), Wright
patent: 4463402 (1984-07-01), Cottrell
patent: 4488147 (1984-12-01), Signorile
patent: 4663579 (1987-05-01), Yang
patent: 5622518 (1997-04-01), Kalpaxis

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