Variable pressure control switch for battery charging circuit

Details Variable pressure control switch for battery charging circuit Variable pressure control switch for battery charging circuit

1979-03-16

1981-08-04

Hickey, Robert J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

200 83J, 200 83S, H02J 704, H01H 3540

Patent

active

042824761

ABSTRACT:
A variable pressure control switch for a battery charging circuit is provided which includes a housing that receives a first member. A chamber is provided in the first member and a diaphragm extends across the chamber to divide the chamber into first and second portions. A first passage communicates with the chamber first portion and extends through the first member and is adapted to be connected with the interior of the battery to be charged so that the interior pressure of the battery is applied to the diaphragm. A second passage is provided in the first member which communicates with the chamber second portion and a piston is slidably received in the second passage. The piston is movable by the diaphragm between a first and a second position. Variable force biasing means engages the piston to prevent movement of the piston to the second position until a preset pressure has been exceeded. Switch means is operable by the piston when the piston is moved to the second position to control the associated charging circuit.

REFERENCES:
patent: 3281640 (1966-10-01), Mas
patent: 3301977 (1967-01-01), Simonin, Jr.
patent: 3516279 (1970-06-01), Maziarka
patent: 3775661 (1973-11-01), Frezzolini et al.
patent: 3848517 (1974-11-01), Hawke
patent: 4168415 (1979-09-01), Edwards et al.

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