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.

Date of Patent:
Apr. 30, 1991

Filed:

Feb. 23, 1990
Applicant:
Inventor:

Michael R Sewell, Chatham, CA;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200 / ; 200 6153 ;
Abstract

An inertia switch comprises a mass which actuates an electrical switch assembly upon being subjected to a predetermined velocity change. The switch assembly comprises a set of two electrical contacts that are disposed within a switch enclosure in resiliently deflected, spaced apart conditions so as to make the set normally open when the inertia switch is in a quiescent condition. During the occurrence of such a predetermined velocity change, the mass operates an actuator of the electrical switch assembly to cause one contact to be further resiliently deflected and engage and also further resiliently deflect the other contact thereby creating switch closure indicating that the predetermined velocity change has occurred.


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