Keyboard switch assemblies

Details Keyboard switch assemblies Keyboard switch assemblies

1977-06-09

1978-04-18

Scott, James R.

Electricity: circuit makers and breakers

Electric switch details

Contact

200 5A, 200159B, 200292, H01H 106, H01H 1352

Patent

active

040853063

ABSTRACT:
A keyboard assembly includes an insulative substrate upon which are carried a plurality of conductive paths. Respective portions of the paths are selectively bridged upon depression of a dome shaped conductive resilient contact element. Each contact element has a single foot disposed along a marginal portion thereof to allow the dome shaped element to be deformed downwardly upon depression at its apex. The foot of each contact element is in physical and electrical contact with selected ones of the conductive paths and the dome shaped element is adapted to simultaneously engage a plurality of such paths upon depression at the apex. An indentation is provided in the substrate immediately beneath the apex of each contact element to better assure simultaneous contact of the plurality of conductive paths immediately beneath the dome shaped contact element.

REFERENCES:
patent: 3676615 (1972-07-01), Wiedmer
patent: 3676616 (1972-07-01), Wiedmer
patent: 3749859 (1973-07-01), Webb et al.
patent: 3751612 (1973-08-01), Hansen
patent: 3796843 (1974-03-01), Durkee et al.
patent: 3806673 (1974-04-01), Boulanger
patent: 3908109 (1975-09-01), Studebaker
patent: 3967084 (1976-06-01), Pounds
patent: 4018999 (1977-04-01), Robinson et al.

Affiliated with

Also associated with

Rating

Keyboard switch assemblies does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Keyboard switch assemblies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Keyboard switch assemblies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2148290