Electricity: circuit makers and breakers – Electric switch details – Cases and bases
Patent
1978-02-15
1979-06-19
Ward, Jr., Robert S.
Electricity: circuit makers and breakers
Electric switch details
Cases and bases
174 52R, 277166, 277211, 277235R, H01H 904, F16J 1532
Patent
active
041587570
ABSTRACT:
A seal for an enclosure of electrical equipment includes a metal frame which is clamped between sealing surfaces on the enclosure base and the enclosure cover. A ring of elastomeric material is molded around the outer edge of this frame and raised beads thereon are compressed by the sealing surfaces on the enclosure base and cover to provide a seal around the outer periphery of the enclosure.
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patent: 3038054 (1962-06-01), Naimer
patent: 3195906 (1965-07-01), Moyers
patent: 3392228 (1968-07-01), Zerwes
patent: 3448986 (1969-06-01), Jelinek et al.
patent: 3578346 (1971-05-01), Jelinek
patent: 3863936 (1975-02-01), Farnam et al.
patent: 3874675 (1975-04-01), Belter et al.
patent: 3930656 (1976-01-01), Jelinek
patent: 3939896 (1976-02-01), Farnam et al.
patent: 4026565 (1977-05-01), Jelinek
Reichert Gilbert A.
Trendel Dennis J.
Allen-Bradley Company
Ward, Jr. Robert S.
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