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:
Nov. 10, 1987
Filed:
Jun. 16, 1986
Kiyoshi Yabe, Amagasaki, JP;
Akiyoshi Onuma, Amagasaki, JP;
Mitsubishi Denki Kabushiki Kaisha, Amagasaki, JP;
Abstract
A spring operating mechanism for a circuit interrupter comprises means for converting the rotation of an electric motor into a rocking motion of a pawl, a ratchet wheel having teeth for being engaged by the pawl to be rotated by the rocking motion of the pawl and a closing spring which is charged by the rotation of the ratchet wheel, whereby energy charged in the closing spring is used for the closing and the tripping of the circuit interrupter. The mechanism comprises a catch arranged to come into engagement with the tip of the pawl when the tip of the pawl begins to ride on a large-diameter outer circumferential toothless portion of the ratchet wheel and to be brought out of the above engagement by the rocking motion of the pawl.