Stabilized molded rubber keyboards

Details Stabilized molded rubber keyboards Stabilized molded rubber keyboards

1986-06-11

1988-08-16

Caldwell, Sr., John W.

Communications: electrical

Audible indication

Percussion-type sound producer

200159B, 200 5A, H01H 314

Patent

active

047647701

ABSTRACT:
A keyboard assembly has a PC board providing a series of switch contacts and a molded rubber keyboard providing a rubber base sheet overlying the PC board and having a series of rubber keys integral with the base sheet. Each key has contacts on its bottom surface for closing each of the switch contacts when its key is depressed. Stabilizing membranes prevent the keys from wobbling or binding. The membrane snugly engages each key, and the membrane is flexible along its Z axis but sufficiently stiff along its X and Y axes to limit the movement of the keys to strictly linear movement toward and away from their respective PC board switches.

REFERENCES:
patent: 3120583 (1974-02-01), Cornell
patent: 4066860 (1978-01-01), Kawasaki
patent: 4119839 (1978-10-01), Beckmann et al.
patent: 4355483 (1982-10-01), Korzelius

Affiliated with

Also associated with

Rating

Stabilized molded rubber keyboards does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-602846