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. 23, 1987
Filed:
Jul. 15, 1985
Rudolf Gebel, Erlangen, DE;
Bernt Paul, Erlangen, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
An electrical contact arrangement for use in a vacuum switch having two coaxially disposed contact as a contact disk which forms one of the contacts, a contact carrier having side walls forming a cylindrical chamber and having slots spiralling therein about a central axis forming a coil for generating a magnetic field, the walls also serving to support the contact disk so as to span the cylindrical chamber, and a profiled element of ferro-magnetic material contained in the chamber and having a face adjacent the contact disk with a cavity therein for evenly radially distributing the magnetic field substantially over the entire contact disk. The profiled element may have a spherical, conical, stepped or rectangular cavity therein, when seen in cross-section, and an additional supporting element of non-magnetic material may be provided within the cavity.