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:
Jan. 16, 1990
Filed:
Oct. 12, 1988
Applicant:
Inventors:
John K Livesey, Carnegie, PA (US);
Alfred E Maier, Beaver Falls, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02B / ;
U.S. Cl.
CPC ...
361376 ; 335 16 ; 411531 ;
Abstract
A molded case circuit breaker is provided with side plates having twist tabs extending downwardly from a bottom edge for fastening the side plates to the circuit breaker base. Spin plates with slots are carried by the base for receiving the twist tabs. The twist tabs are formed with a shank portion, a tapered portion and a head portion. The tapered portion defines a sloped surface which contacts the slot in the spin plate. When the twist tab is twisted, the shank is shortened drawing a wider portion of the sloped surface into the engagement with the slot to secure the side plate to the base.