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. 29, 1979
Filed:
Apr. 19, 1977
Raymond D Jones, Cheam, GB;
TII Corporation, Lindenhurst, NY (US);
Abstract
A three element gas filled tubular surge arrester is disclosed. The arrester has a hollow cylindrical mid-section or centerbody defining a first cylindrical electrode, and a pair of rod-shaped line electrodes extending inwardly into and along the axis of the centerbody from respective end caps to define respective annular gaps relative to the centerbody electrode as well as a gap between the opposed ends of the line electrodes. The end caps are electrically and mechanically connected to the line electrodes but insulated by annular insulator spacers from the centerbody. One of the line electrodes is partially hollow and apertured, and incorporates a pinch tube for exhaustion and subsequent filling of the tube interior with an ionizable gas. Incorporated in this known design is an annular sleeve which lines the centerbody and is coaxial relative to the rod electrodes. The sleeve, which is of metallic composition, functions to improve the overload handling capacity of the arrester. Further, the insert improves the stability of the striking voltage.