Electricity: conductors and insulators – Conduits – cables or conductors – Single duct conduits
Patent
1985-09-04
1987-05-19
Grimley, Arthur T.
Electricity: conductors and insulators
Conduits, cables or conductors
Single duct conduits
174 81, 285 11, 403164, H02G 306
Patent
active
046670629
ABSTRACT:
A swivel fitting for electrical conduit and the like comprising a first fitting part having an axially extending tubular section and a second fitting part having a generally cylindrical axially extending section disposed in sleeved relationship within the tubular section of the first fitting part and having a distal end surface engageable with a transverse shoulder formed within the interior of the tubular section of the first fitting part. The second fitting part has a head portion with a generally annular channel for receiving the distal end of the tubular section of the first fitting part. The channel is delimited by a transverse surface which is axially spaced from the transverse end face of the cylindrical section so that in any position of the fitting, rainwater and other liquid spray will be prevented from intrusion into the interior wireway formed by the fitting. A circumferential groove formed on the tubular section minimizes the intrusion of liquid into the channel and facilitates drainage therefrom. The fitting parts are held in assembled relationship by a circumferential groove in the cylindrical section and cooperating radially inwardly extending projections which are formed in the tubular section of the first fitting part.
REFERENCES:
patent: 2052394 (1936-08-01), Fullman
patent: 2821567 (1958-01-01), Bergan
patent: 3239252 (1966-03-01), Schmitt et al.
patent: 3365216 (1968-01-01), Babylon
patent: 3893719 (1975-07-01), Eidelberg et al.
patent: 4026581 (1977-05-01), Pasbrig
patent: 4042262 (1977-08-01), Mooney et al.
patent: 4060264 (1977-11-01), Gajajiva
Cooper Industries
Grimley Arthur T.
Maxwell R. L.
Scott E. E.
Tone D. A.
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