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:
Jan. 17, 1989
Filed:
May. 12, 1988
Ulrich Ackermann, Turgi, CH;
BBC Brown Boveri & Co., Ltd., , CH;
Abstract
The compressed-gas breaker exhibits two contact members (3; 11, 12, 13), of which one (11, 12, 13) is constructed as a nozzle, and an insulating nozzle (5) and a heating volume (8) for storing switching-arc-generated compressed gas. This breaker is intended to be distinguished by a high pressure buildup in the heating volume (8) and a great thermal quenching capacity. This is achieved by a multi-part construction of the contact member (11, 12, 13) acting as a nozzle. In particular, this contact member (11, 12, 13) exhibits a tubular body (13), which is axially displaceably conducted in a contact carrier (11), of erosion-resistant contact material, which, during interruption, forms the nozzle constriction (19) of this contact member (11, 12, 13) while under the action of a spring (15).