Electricity: conductors and insulators – Conduits – cables or conductors – Single duct conduits
Patent
1977-12-22
1979-10-02
Arola, Dave W.
Electricity: conductors and insulators
Conduits, cables or conductors
Single duct conduits
285 12, 285 23, 285161, 285322, 285343, H02G 306
Patent
active
041699670
ABSTRACT:
A liquid tight fitting for liquid tight flexible metal conduit which provides higher unit sealing pressures and improved liquid tight sealing by providing line, rather than surface, contact at critical points. The body member of the fitting makes line contact with a flared lip of the ferrule. The lip of the ferrule makes line contact with the sealing ring. The vector forces which create the seals have components in the directions required to most effectively and efficiently produce the seals. The sealing ring may be made symmetrical, is discontinuous, has an inside bead for sealing against the conduit and may include wings for retention in the gland nut prior to assembly of the fitting on a conduit end.
REFERENCES:
patent: 1132086 (1915-03-01), Goodall
patent: 1436774 (1922-11-01), Mummert
patent: 2467520 (1949-04-01), Brubaker
patent: 2541200 (1951-02-01), Brubaker
patent: 3142500 (1964-07-01), Wesseler
patent: 3201153 (1965-08-01), Currie
patent: 3227803 (1966-01-01), Gohs
patent: 3239252 (1966-03-01), Schmitt et al.
patent: 3393267 (1968-07-01), Busse
patent: 3424853 (1969-01-01), Johnson
patent: 3492410 (1970-01-01), Kelly
patent: 3603912 (1971-09-01), Kelly
patent: 3647934 (1972-03-01), Hurtt
patent: 3649050 (1972-03-01), Woodling
patent: 3964772 (1976-06-01), Cox
patent: 3986731 (1976-10-01), DeHoff
patent: 4019762 (1977-04-01), Eidelberg et al.
Arola Dave W.
General Signal Corporation
Killian George W.
Kleinman Milton E.
Wynn Harold S.
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