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:
Sep. 16, 1986
Filed:
Nov. 15, 1984
James M Mercer, Trenton, NJ (US);
Heinemann Electric Company, Lawrenceville, NJ (US);
Abstract
An operating mechanism is provided for push-button circuit breakers. The breaker mechanism includes a frame and a pair of contacts supported relative to the frame which are displaceable relative to one another between an open and a closed position. A bell crank having a deflecting surface and a cam surface is pivotally mounted on the frame so as to pivot between a first and second stable position. A linkage assembly is coupled with the bell crank and at least one of the contacts and is displaceable so as to open and close the contacts. A push-button actuator is movably supported relative to the frame. The push-button actuator is adapted to engage the cam surface of the bell crank in its first stable position to displace the bell crank into the second stable position in order to displace the linkage assembly to close the contacts. The push-button actuator is also adapted to engage the deflecting surface of the bell crank in its second stable position so that the push-button actuator is deflected by the deflecting surface to prevent displacement of the bell crank from its second stable position. An electrical actuator is supported on the frame and is adapted to displace the linkage assembly under predetermined conditions to open the contacts and enable displacement of the bell crank from its second stable position back to its first stable position.