Title: Keyboard assembly with overlapped flexible printed circuit cable switch

Abstract: This invention relates to a keyboard switch assembly having a minimal number of components. A flexible printed circuit cable is configured in such a manner so that the flexible printed circuit cable contains complementary overlapping contact points interconnected by printed circuit electrical lines. A spacer plate with apertures corresponding to sets of complementary contact points is interposed between segments of the folded flexible printed circuit cable. A method for making a keyboard switch assembly with a flexible printed circuit multiple switch assembly is disclosed.

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Inventors: Demler, Jr., Henry William (Lebanon, PA, US)

Application Number: 579104
Filing Date: 1975-05-20
Publication_date: 1976-09-21
Assignee: AMP Incorporated (Harrisburg, PA)
Primary Class(es): 200/5R 29/622, 200/5A, 200/292, 200/517, 361/680, 400/495, 400/495.1
Other Classes:
US Patent Ref:

3125895	Mar, 1964	Ross	200/5.
3207862	Sep, 1965	Robbins	200/50.
3383487	May, 1968	Wiener	200/292.
3472974	Oct, 1969	McGough	200/159.
3519766	Jul, 1970	MacKway	200/325.
3745288	Jul, 1973	Reimer	200/16.
3909564	Sep, 1975	Scheingold et al.	200/5.

Other Refs:
Primary Examiner: Scott, James R.
Assistant Examiner:
Attorney: Osborne; Allan B.