Pipe joints or couplings – Packed – Wedge
Patent
1975-04-11
1977-04-26
Callaghan, Thomas F.
Pipe joints or couplings
Packed
Wedge
285341, 2853827, F16L 1908
Patent
active
040197620
ABSTRACT:
A vapor-proof connector on a metal electrical conduit includes an externally threaded tubular body engaging the end of the conduit and a gland nut spaced inwardly of and engaging the tubular body. The gland nut has an inwardly directed peripheral flange with a tapered inside face confronting a tapered end face of the body to delineate an annular space which surrounds the conduit and houses a channel-shaped split metal ring having inwardly directed diverging flanges and a wedge-shaped deformable gland ring arranged end to end so that tightening of the gland nut compresses the gland ring between the metal ring and the body or nut to radially compress the inside face of the gland ring and cause the split ring to bite and anchor to the conduit. Alternatively, the gland ring may be encircled by the split ring. The ends of the split ring may have opposing reduced width tongues extending therefrom. The gland ring has a coupling member extending radially outwardly into the circumference of the split ring and has a longitudinal bore therein which receives the tongue.
REFERENCES:
patent: 1959607 (1934-05-01), Anderson
patent: 2316806 (1943-04-01), Parker
patent: 2434846 (1948-01-01), Hagan
patent: 2452277 (1948-10-01), Woodling
patent: 2470546 (1949-05-01), Carlson
patent: 2474319 (1949-06-01), Muller
patent: 3441297 (1969-04-01), Koski
patent: 3485517 (1969-12-01), Howe
patent: 3733093 (1973-05-01), Seiler
patent: 3794362 (1974-02-01), Mooney et al.
Bauer Richard A.
Eidelberg Jonah
Mooney Thomas
Callaghan Thomas F.
I-T-E Imperial Corporation
Miskin Howard C.
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