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:
Jun. 30, 1992
Filed:
Sep. 11, 1990
Ramon O Torres-Isea, Cedar Rapids, IA (US);
Gary W Scott, Mt. Vernon, IA (US);
Christopher K Goble, Marion, IA (US);
Square D Company, Palatine, IL (US);
Abstract
A current interrupter in which a first movable, insulating, gear carries a contact blade. The blade extends out from this movable gear and forms a contact which makes and breaks with a stationary contact upon movement of the gear. A second insulating gear has a set of teeth which engage the teeth on the first gear. The second gear has a cavity into which the extended contact fits. Movement of the first gear in a direction to break the contact, causes the engaged teeth to drive the extended contact into the cavity, thereby insulating the movable contact from the stationary contact. The interlocking gear teeth create a tortuous path for the arc and provide a large over surface distance for dielectric strength.