Methods of manufacturing tactile switch for keyboards and the li

Details Methods of manufacturing tactile switch for keyboards and the li Methods of manufacturing tactile switch for keyboards and the li

1975-03-14

1978-01-10

Lanham, C.W.

Metal working

Method of mechanical manufacture

Electrical device making

264 27, 264104, 264250, H01H 1100, H01H 1106

Patent

active

040671020

ABSTRACT:
A tactile switch plate for a keyboard member has a planar body portion provided with a plurality of outwardly deformed carrier portions corresponding in number and spacing to the number and spacing of the keys of the keyboard. Each of the carrier portions is resiliently flexible for movement toward the plane of the body and each carrier portion carries a preferably elastomeric switching member that is adapted to bridge the conductors and establish an electrical circuit between the conductors. The plate and switching members are produced by a molding process and the elastomeric switching members are cured by heat.

REFERENCES:
patent: RE15653 (1923-07-01), Allcutt
patent: 1099071 (1914-06-01), McCoy, Jr.
patent: 2040919 (1936-05-01), Caldwell
patent: 2509652 (1950-05-01), Rushmer et al.
patent: 2886854 (1959-05-01), Franklin
patent: 3233059 (1966-02-01), Pridham, Jr. et al.
patent: 3723684 (1973-03-01), Greenwood
patent: 3860771 (1975-01-01), Lynn et al.

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