Surge arrester with a cage design

Details Surge arrester with a cage design Surge arrester with a cage design

2006-12-11

2011-11-22

Nguyen, Danny (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

C361S127000

Reexamination Certificate

active

08064181

ABSTRACT:
The invention relates to a surge arrester having at least one varistor block; two end fittings; one reinforcing element which holds the varistor block under tension at the end fittings and at least one anchoring element, which holds the reinforcing element in a hole through at least one of the end fittings. The reinforcing element is preferable a wedge which splits the reinforcing element and braces with the outer walls of the through-hole. Alternatively, two or more glass-fiber-reinforced reinforcing elements are held in a through-hole, and a wedge between these reinforcing elements ensures that the reinforcing elements are held with a force fit in the end fitting in the area of the through-hole.

REFERENCES:
patent: 4962440 (1990-10-01), Johnnerfelt et al.
patent: 5363266 (1994-11-01), Wiseman et al.
patent: 5402100 (1995-03-01), Urbanek et al.
patent: 6777614 (2004-08-01), Suenwoldt
patent: 199 40 939 (2001-07-01), None
patent: 2002175905 (2002-06-01), None
International Search Report in corresponding PCT/EP2006/069532dated Mar. 28, 2007.
Written Opinion in corresponding PCT/EP2006/069532.
International Preliminary Report of Patentability in corresponding PCT/EP2006/0695326 dated Sep. 9, 2008.

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