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:
Jul. 13, 1993
Filed:
Sep. 12, 1991
Richard T Kaczmarek, Chicago, IL (US);
Alexander G Gilberts, Barrington, IL (US);
Reliance Comm/Tec Corporation, Chicago, IL (US);
Abstract
An assembly for defining a sealed back-up air gap, for use with a line protector comprising an over-voltage arrester housed within a canister and defining a back-up air gap therebetween, comprises an electrical contact and a sealing member. A mounting arrangement is disposed on the electrical contact for positively positioning and retaining the sealing member on the electrical contact. The sealing member is engagable with the canister to form a seal for the back-up air gap, and with the contact while also mounting the contact for electrically conductive engagement with one electrode of the arrester. In one embodiment, the sealing member is an elastomeric O-ring. In another embodiment, the O-ring mount is formed by deformation of the electrical contact. In yet another embodiment, the O-ring is replaced by a flat, annular washer-shaped insulator, which is positively retained on the electrical contact.