US 4,374,596 AGranted

Pipe-form connector for cable ducts

AssigneeJosef Schlemmer GmbH

InventorsJosef Schlemmer, Adolf Konig

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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.

Claims4

Dependent claims

Pipe-form connector for cable duct ends comprising longitudinally split shell portions of the connector with complementary elongated joint elements of a direct push and pull assemblable and disassemblable type running substantially the full lengths of such elements and arranged parallel to longitudinal axes of the connector, the shells being assemblable at such edges and holdable in assembled position by the joint elements to form sections uniformly corresponding to cable duct ends and internally insertable into the duct ends to be connected with a snug fit but removable therefrom,

and being constructed of substantially the same form and size of said duct ends, but being sufficiently smaller than the duct ends only to the extent necessary for snug-fitting insertion therein to form interconnecting conduits between the various duct ends, substantially as extensions thereof, and
means to prevent longitudinal slippage between joint elements and to cause yielding of the connector as one of its ends enters a duct end and to permit length equilibration,
and further comprising exterior end catches on its ends to lock within corrugations or like recesses of a cable duct end by engaging within them,
and wherein the catch is supplemented by slots in front of and behind it with the slot behind being wider than the slot in front to provide easier yielding on insertion of the pipe form connector than upon withdrawal from a cable duct end.

1 more element

Dependencies are inferred from the claim text.