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:
Aug. 21, 1979
Filed:
Jul. 28, 1977
Applicant:
Inventor:
Jean Hennemann, Homblieres, FR;
Assignee:
Societe Anonyme dite: UNELEC, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; H01H / ; H01H / ;
U.S. Cl.
CPC ...
2001 / ; 335166 ; 200337 ; 200 / ;
Abstract
A switch in which if the contacts of the switch are lightly stuck together the switch control can still separate them, but if the contacts are firmly stuck together then the switch control cannot be moved to the 'off' position which would give a dangerously erroneous indication of the state of the circuit switched. A two arm locking lever is pivotally mounted and has a first stop constituted by a spring into which one of the arms penetrates, and a second stop constituted by a pivot axis of the device.
Hennemann, Jean. (1979). Switch with device to interlock the switch control if the contacts stick (U.S. Patent No. 4165453). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4165453
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile