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:
Feb. 01, 1983
Filed:
May. 21, 1980
Klaus Ragaller, Neuenhof, CH;
BBC Brown, Boveri & Company, Ltd., Baden, CH;
Abstract
An electrical switch for large currents is disclosed in which an electric arc generated during separation of contact members is exposed to blow-out by a magnetic field generated by current flow in a looped-region of one of the contact members. The switch includes at least two rotationally symmetric contact pieces, at least one of which has a plurality of contact elements arranged in an annular configuration in the circumferential direction. The contact elements include a looped-region which generates the magnetic field to which the electric arc is exposed. The contact elements may consist of a plurality of contact fingers accommodated by a contact piece, or may consist of a plurality of contact bars integrally formed with a contact piece. The contact elements, which extend substantially in the make/break direction of the switch, may be spring loaded or may be supported in a spring-loaded fashion.