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. 28, 1983
Filed:
Mar. 03, 1981
Franz Watzke, Berlin, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
Contact piece for an electric vacuum switch, including a contact carrier base, an obliquely slotted contact carrier wall having an upper surface and being integral with the base forming a pot-shaped contact carrier together with the bsae, the pot-shaped contact carrier being substantially formed of copper and having a circular cross-section, an unslotted substantially planar contact ring being formed of a contact material and being disposed in the upper surface of the wall, the wall having a circular groove with a rectangular cross-section formed therein extended downwardly from the upper surface thereof, and another unslotted ring formed of a material having a greater resistance than copper being disposed in the groove.