Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent
1974-04-09
1976-02-24
Scott, James R.
Electricity: circuit makers and breakers
Multiple circuit control
Multiple switch
200159R, 200295, 200338, 200340, 197 98, 235145R, 335205, 340365R, H01H 1314, H01H 3600, G06C 702
Patent
active
039405788
ABSTRACT:
An electronic keyboard has a chassis with keys each utilising a parallel motion linkage to permit movement of an operating member towards an electric circuit element. The main structure of the keys and linkage may be formed as a unitary plastics moulding.
REFERENCES:
patent: 3404315 (1968-10-01), Jacobs et al.
patent: 3582594 (1971-06-01), Twyford
patent: 3668356 (1972-06-01), Kekas
patent: 3678424 (1972-07-01), Iwashima et al.
patent: 3736397 (1973-05-01), Pedersen
patent: 3760137 (1973-09-01), Shimojo et al.
patent: 3797630 (1974-03-01), Zilkha
patent: 3829632 (1974-08-01), Klehm, Jr.
patent: 3829646 (1974-08-01), Lorteije et al.
IBM Technical Disclosure Bulletin, R. A. Johnson, "Keyboard," Vol. 13, No. 11, p. 3428, Apr. 1971.
IBM Technical Disclosure Bulletin, J. A. Mathewson et al., "Momentary Contact Actuator," Vol. 15, No. 10, pp. 3162-3163, Mar. 1973.
Alphameric Keyboards Limited
Scott James R.
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