Printed circuit board circuit control device

Details Printed circuit board circuit control device Printed circuit board circuit control device

1994-04-22

1995-05-09

Picard, Leo P.

Electricity: conductors and insulators

Conduits, cables or conductors

Preformed panel circuit arrangement

174262, 174267, 174268, 2281801, 361774, 361775, 361777, 361778, H05K 100

Patent

active

054142199

ABSTRACT:
A circuit control device includes two intermating foil pads separated from one another by a narrow gap having a maximum dimension of 0.006 inches. A circuit path having one side connected to one of the pads and a second side connected to the other of the pads is selectively closed and opened by solder application and removal operations. Interdigitated, triangular fingers which are intermated to form the device ensure the formation of acutely angled junctures along the gap to ensure solder bridging of the gap. Emergency control elements are coupled to the circuit control device to permit control of an associated circuit path if the circuit control device itself fails. In that event, an emergency control device is coupled to the emergency control elements to control opening and closing of the circuit path.

REFERENCES:
patent: 3859196 (1975-01-01), Ruthel et al.
patent: 3923359 (1975-12-01), Newsam
patent: 4785141 (1988-11-01), Nishihara et al.
patent: 5043534 (1991-08-01), Mahulikar et al.

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