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:
Sep. 07, 2004
Filed:
May. 16, 2001
Andreas Kraetzschmar, Bonn, DE;
Frank Berger, Swisttal-Miel, DE;
Michael Anheuser, St. Augustin, DE;
Wolfgang Kremers, Bonn, DE;
Moeller GmbH, Bonn, DE;
Abstract
The invention relates to a self-recovering current-limiting device with liquid metal. The device contains two solid metal electrodes ( ) which are rotationally symmetrical in relation to the longitudinal axis ( ) of the current limiting device ( ) and several compression chambers ( ) which are partially filled with liquid metal ( ) and arranged in a series between the electrodes ( ). The compression chambers are formed by pressure-resistant insulating bodies ( ) and insulating intermediate walls ( ) which are supported by the same ( ) and which have several connecting channels ( ), distributed in a circular form. The aim of the invention is to extend the positions of use. To this end, the electrodes ( ) have cavities ( ) which are connected to the adjacent compression chambers ( ) by openings ( ) and which are adequately wetted to completely filled with the liquid metal ( ), according to the position of use.