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:
Nov. 13, 1979
Filed:
Mar. 27, 1978
Richard D Ford, Temple Hills, MD (US);
Ihor M Vitkovitsky, Silver Spring, MD (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A modular opening switch for high currents providing high current-carrying apacity, high voltage hold-off capability and very short opening time. The switch operates on the principle of an explosively generated pressure which ruptures and then drives paraffin radially through a cylindrical current conducting tube, so that the paraffin provides an electrically insulative barrier between the ruptured portions of the conducting tube. Alternate cutting and bending rings, between which insulating rings are placed, are disposed around the periphery of the conductor tube. The insulating rings are tapered at the periphery of the conductor tube to provide void spaces into which the paraffin is driven and firmly packed without voids or cracks which deteriorate the insulating property of the paraffin.