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. 02, 1988
Filed:
Jul. 13, 1987
Henry R Beck, Thetford Center, VT (US);
James E Ferree, Lawrenceville, GA (US);
Alan J Ludwig, deceased, late of Trafford, PA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A drawout and interlock assembly for manually inserting a low-voltage molded case circuit breaker into positive electrical engagement with the plug-in power terminals of a distribution switchboard panel and then withdraw the breaker into a disconnected-test position is disclosed. The drawout position of the assembly comprises a pair of guide rails and a pair of drive rails that are secured to the back of the circuit breaker housing and cooperate with a pair of support rails and a drive mechanism that are secured to the stationary power blocks of the switchboard panel to effect a sliding telescopic interfitting of parts that permits the circuit breaker to be manually racked into connected and disconnected-test positions in an efficient reliable manner with a minimum number of parts. Automatic tripping of the breaker before it is connected to or disconnected from the switchboard panel is achieved by a toggle-actuated interlock lever that engages a depressable interlock button on the back of the circuit breaker housing when the drive mechanism is moved by an operating handle.