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. 14, 1978
Filed:
Sep. 22, 1976
John P Cochran, Lexington, KY (US);
Kuhlman Corporation, Troy, MI (US);
Abstract
A switch adapted to interrupt high voltage electrical currents by directing an extended curvilinear arc plasma path within a fluid insulating medium. The preferred embodiment of the switch is designed to store rotational energy in a motor spring, release the stored rotational energy, and latch an opposite motor spring all in the same movement of the operator's handle. The switch also includes a mechanical overdrive unit that permits the operator's handle to be rotated only a fraction of the total rotation travelled by the movable contact. In addition, an anti-stick or weld break feature is provided that manually initiates rotation of the movable contact in the event of adhesion between the contacts. Finally, a novel contact design is disclosed which aids in controlling the path of the arc plasma as well as providing multiple contact paths to insure that proper physical connecton is made between the contacts.