Bounce-resistant contacts for a switch

Details Bounce-resistant contacts for a switch Bounce-resistant contacts for a switch

1978-10-30

1979-10-02

Stephan, Steven L.

Electricity: circuit makers and breakers

Electric switch details

Contact

200258, 200288, H01H 150, H01H 360

Patent

active

041699734

ABSTRACT:
A bounce- and weld- resistant contact assembly includes a pair of spaced contact plates with facing contacts on their ends. A switch blade is rapidly movable into and out of engagement with the contacts. The contacts are convexities coined into the plates which add no mass to the plates. Thus, the natural frequency of the plates is maximized and the magnitude of oscillation of the plates, when the contacts are rapidly engaged by the blade, is minimized. Legs on leaf springs act against concavities formed in the plates opposite the convexities. The legs conformally nestle in the convexities so that their frictional engagement therewith and the spring force co-act to quickly damp the high frequency, low magnitude oscillations of the plates. The low mass coined contacts also permit close spacing of the plates to maximize magnetic forces thereon due to current flow therethrough. These forces aid the spring and the leg-concavity friction in quickly damping oscillations of the plates.

REFERENCES:
patent: 1988687 (1935-01-01), Jackson
patent: 2221607 (1940-11-01), Samzelius
patent: 2433115 (1947-12-01), Green
patent: 2760034 (1956-08-01), Kowalski et al.
patent: 2779844 (1957-01-01), Kowalski
patent: 3087039 (1963-04-01), Bachman
patent: 3676629 (1972-07-01), Evans et al.

Affiliated with

Also associated with

Rating

Bounce-resistant contacts for a switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bounce-resistant contacts for a switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bounce-resistant contacts for a switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2370572