Pipe-form connector for cable ducts

Details Pipe-form connector for cable ducts Pipe-form connector for cable ducts

1979-03-23

1983-02-22

Arola, Dave W.

Pipe joints or couplings

Essential catch

285150, 285419, 285423, 285DIG22, 138155, 138162, F16L 3708

Patent

active

043745962

ABSTRACT:
An electrical duct connector has a pipe form of essentially the same cross-section geometry as duct ends to be connected thereby, but of an outer wall diameter (or the like) corresponding to the interior diameter or the like of the duct ends so that the connector fits snugly into the duct ends. The connector may have two, three or more ends and is made of multipiece form with elongated tongue and groove connections in mating wall portions including, preferably, gaps near the ends of the tongues and teeth from the opposite portion of the split construction of any given connector to engage the gaps and preferably also comprising exterior catches for duct ends with reliefs in the connector wall to make the catches resilient and further locking element such as a pin connection at an angle elbow (if any) of the split-construction connector.

REFERENCES:
patent: 786911 (1905-04-01), Miles et al.
patent: 1661674 (1928-03-01), Osborn
patent: 1969588 (1934-08-01), Sweet
patent: 2116165 (1938-05-01), Ullman
patent: 3425456 (1969-02-01), Schibig
patent: 3572395 (1971-03-01), Burns
patent: 3633943 (1972-01-01), Ramm
patent: 3926222 (1975-12-01), Schroy

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