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:
May. 30, 1989
Filed:
Mar. 21, 1988
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A circuit breaker includes an operation knob rotatably mounted on a frame, an actuator rotatably mounted on the frame, the actuator being rotatably moved with the operation knob so as to operate a handle of the circuit breaker, an engagement member rotatably movable between first and second positions in response to the reciprocal movement of the actuator. The engagement member engages with an interlocking arm for the locking of the compartment door while it is being moved to the second position. The engagement member allows the interlocking arm to pass by when occupying the first position. An engagement portion is formed in the operation knob so as to engage with the engagement member when it occupies the second position. The location of the engagement portion corresponds to an OFF position of the operation knob where the circuit breaker is opened. Engagement of the engagement member with the engagement portion prevents the circuit breaker from being closed when the compartment door is opened.