Pipe-form connector for cable ducts

Claim 1

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.