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:
Mar. 14, 1978
Filed:
Jun. 09, 1976
Erhard Pietsch, Winkelhaid, DT;
Ellenberger & Poensgen GmbH, Altdorf, DT;
Abstract
A multi-pole excess current circuit breaker assembly has a plurality of single-pole circuit breakers. In each of the latter the electric contacts are openable by a spring-loaded tripping mechanism actuated by a release lever as the release lever is moved from a first position to a second position by an excess current responsive device. The actuated tripping mechanism moves the release lever from the second position to a third position. The release levers of all the single-pole circuit breakers are operatively interconnected by a one-piece coupling member which is fixedly attached to one of the release levers, but is coupled to the others with a clearance, so that when excess current flows through the contacts of one of the single-pole circuit breakers, the release lever of the latter will move the release levers of the other single-pole circuit breakers only when it is displaced from the second position to the third position by the tripping mechanism of that single-pole circuit breaker through which the excess current flows.