Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent
1975-08-29
1977-06-07
Scott, James R.
Electricity: circuit makers and breakers
Multiple circuit control
Multiple switch
58 50R, 58152R, 174 685, 200 86R, 200159B, 200292, 361398, G04B 4706, G04B 1930, H01H 900, H01H 1302
Patent
active
040285090
ABSTRACT:
A tabulator keyboard of simplified design may be fabricated from a single flexible circuit and a minimum of other mechanical structures. The flexible circuit combines in one piece an array of deformable upper contacts, an array of stationary lower contacts, as well as the required interconnections between the elements of these arrays and the electronics module. The flexible circuit may be made of a reasonable transparent dielectric film (e.g. polyamide). The flexible circuit is folded in use such that the lower stationary array has its conductive surface opposite the upper deformable array. Means are provided for making electrical contact between a selected element in said lower array with a selected element in said upper array.
REFERENCES:
patent: 3383487 (1968-05-01), Wiener
patent: 3440429 (1969-04-01), Murphy et al.
patent: 3742157 (1973-06-01), Leposavic
patent: 3745288 (1973-07-01), Reimer
patent: 3777222 (1973-12-01), Harris
patent: 3803834 (1974-04-01), Reese
patent: 3829632 (1974-08-01), Klehm, Jr.
patent: 3831063 (1974-08-01), Keough
patent: 3843851 (1974-10-01), Harada et al.
patent: 3860771 (1975-01-01), Lynn et al.
patent: 3909564 (1974-09-01), Scheingold et al.
patent: 3911234 (1975-10-01), Kotaka
patent: 3928960 (1975-12-01), Reese
IBM Technical Disclosure Bulletin, J. R. Lester, et al., "Switch," Apr. 1969, vol. 11, No. 11, p. 1569.
IBM Technical Disclosure Bulletin, C. P. Ludeman and D. H. Strait, Wrist-Worn Terminal, vol. 15, No. 11, Apr. 1973, pp. 3350, 3351.
Hughes Aircraft Company
Konzem Fay I.
MacAllister W. H.
Scott James R.
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