Capacitive keyswitch with overtravel plunger mechanism

Details Capacitive keyswitch with overtravel plunger mechanism Capacitive keyswitch with overtravel plunger mechanism

1981-01-21

1982-09-28

Goldberg, Elliot A.

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

200DIG1, 361293, H01G 516

Patent

active

043521444

ABSTRACT:
A capacitive keyswitch is formed by a flat, horizontal capacitor plate that is covered by a dielectric layer on a printed circuit board and a moveable capacitor plate that is secured to the printed circuit board by a pair of tabs and is hinged so that it projects upwardly at an acute angle with respect to the horizontal printed circuit board. The plastic plunger for actuating the switch is formed with an integrally molded cantilever overtravel arm, which preferably is formed as a segment of the circumference of a circle. The arm has an integral transversely projecting cylindrical rod at its end which contacts the moveable capacitor plate during actuation of the keyswitch.

REFERENCES:
patent: 3183912 (1965-05-01), Mogilner
patent: 3943812 (1976-03-01), Nagai
patent: 4090229 (1978-05-01), Cencel et al.

Affiliated with

Also associated with

Rating

Capacitive keyswitch with overtravel plunger mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Capacitive keyswitch with overtravel plunger mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Capacitive keyswitch with overtravel plunger mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-402290