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:
May. 25, 2004
Filed:
Nov. 13, 2001
Lukas Zehnder, Dättwil, CH;
Michael Mendik, Samstagern, CH;
ABB Schweiz AG, Baden, CH;
Abstract
A contact zone ( ) of a quenching chamber which is arranged rotationally symmetrical about a central axis ( ) and is filled with an insulating medium, having at least two stationary consumable contacts which are in the form of contact rings ( ) and which, when the quenching chamber is closed, are electrically conductively connected by means of a bridging contact which is arranged centrally and can move axially. The mutually facing end surfaces of the consumable contacts are partially covered by electrically insulating covers ( ). The aim is to provide insulating covers which are designed to have good dielectric characteristics and are easy to install. This is achieved in that a wedge-shaped annular gap ( ) which is open in the radial direction and originates from a contact-making edge ( ), of the cover ( ) is provided between a contact-making surface ( ) and an insulating cover ( ) and in that the edge ( ) is dielectrically shielded by means of an annular bead ( ) which projects beyond the contact-making surface ( ).