H - Electricity – 02 – H
Patent
H - Electricity
02
H
317/23
H02H 9/04 (2006.01) H01T 1/22 (2006.01)
Patent
CA 1081314
Abstract of the Disclosure A valve type surge arrester includes a line terminal disposed partially within and spaced from a conductive outer housing that functions as a ground terminal The surge arrester is formed with an extremely compact configuration and occupies only approximately 0.17 cubic inches of volume Also disposed within the housing is a spark gap in series with a power follow current limiting valve block. An insulating spacer is disposed within the conductive outer housing. The spacer includes two integrally formed shoulders that determine the spark gap spacing and an integrally formed, tubularly shaped, extending portion that electrically insulates portions of the valve block from the conductive outer housing. An elastic sealing gasket resiliently compresses the line terminal, the spark gap structure, and the valve block components into series contact against an inner end of the housing. Simultaneously, the gasket also compensates for dimensional variations of all of the arrester components, centers the line terminal within the housing, provides line terminal to grounded housing internal and external dielectric insulation, seals the open end of the housing and seals the spark gap from portions of the housing, to thereby insure series operation of the spark gap and valve block in a minimized design configuration.
251122
Cunningham Francis V.
LandOfFree
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