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. 25, 1994
Filed:
Sep. 30, 1991
Karl Herchenrother, Birstein, DE;
Michael Protzmann, Wachtersbach, DE;
Heiko W Spengemann, Langenselbold, DE;
Leybold Durferrit GmbH, Cologne, DE;
Abstract
Apparatus for switching a high-current power supply, for example for transportable melting systems in melting and remelting plants, with a stationary apparatus part and a movable apparatus part, a contact surface between the stationary and the movable part as well as a device for locking the two parts, the contact surface (2d) on the stationary part (S) being preferably in the form of a hemisphere (2a) and the corresponding contact surface (3d) on the movable part (M) being preferably configured as a conical inside surface (3a) and the contacts being joinable forcibly with one another by means of a clamping device, the clamping device consisting for example of a centering and drawing bolt (2b) and of a corresponding ball clamping device, and that the clamping device is electrically insulated by means of insulators (7, 12) from the current-carrying contacts.