Keyboard switch assembly having flexible contact carrying member

Details Keyboard switch assembly having flexible contact carrying member Keyboard switch assembly having flexible contact carrying member

1977-06-10

1978-12-12

Scott, James R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200159B, 200330, 200340, H01H 1370

Patent

active

041297580

ABSTRACT:
A keyboard switch assembly for use in telephones, calculators and the like positions a thin, flexible dielectric member with a switch closure conductive pattern printed thereon between substrate switch contacts and flexible bubble actuator mechanisms. The separate switch closure member permits the closure conductor pattern to be selected independently of constraints for proper bubble operation while permitting the flexible bubbles to be designed independently of requirements for switch closure patterns for optimum switch assembly design and operation.

REFERENCES:
patent: 3773998 (1973-11-01), Seeger, Jr. et al.
patent: 3777082 (1973-12-01), Hatley et al.
patent: 3780237 (1973-12-01), Seeger, Jr. et al.
patent: 3856998 (1974-12-01), Sims, Jr.
patent: 3860771 (1975-01-01), Lynn et al.
patent: 3862382 (1975-01-01), Glaister et al.
patent: 3898421 (1975-08-01), Suzumura
patent: 3978297 (1976-08-01), Lynn et al.
patent: 3987259 (1976-10-01), Larson
patent: 3993884 (1976-11-01), Kondur et al.
patent: 3995126 (1976-11-01), Larson

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