The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 13, 1981
Filed:
Sep. 24, 1979
Eugene L Kamp, Fulton, MO (US);
A. B. Chance Company, Centralia, MO (US);
Abstract
An improved electrical switch unit is provided having a strategically located, shock-absorbing member which absorbs a large proportion of potentially damaging impact forces developed during switch closing operations and thus preserves the soft metal switch contact shafts against significant deformation and consequent alteration in the operational characteristics of the switch. The shock-absorbing function is advantageously performed by a low-mass, spring-biased weld break lever associated with the over toggle switch operating mechanism. During the switch closing sequence the contact-shifting operating arm of the switch operating apparatus engages the biased weld break lever and the latter serves to slow the relative closing speed of the contacts prior to the instant of impact therebetween; in this manner a significant amount of the impact forces are absorbed which would otherwise be absorbed by the contact shafts themselves.