Coupling assembly for securement in the open end of a pipe

Details Coupling assembly for securement in the open end of a pipe Coupling assembly for securement in the open end of a pipe

2007-10-09

2007-10-09

Brinson, Patrick F. (Department: 3754)

Pipes and tubular conduits

With closures and plugs

C138S09600T, C285S348000, C220S327000

Reexamination Certificate

active

11215858

ABSTRACT:
A coupling assembly for inserting into and coupling with the end of an open pipe, such as a cleanout pipe used in plumbing systems and wherein the coupling assembly may be used as a plug. The coupling assembly includes a collar secured around a medial portion of the cylindrical body of reduced diameter. The collar is driven downward by threadable advancement of a plurality of screws for squeezing a seal against the collar and a downwardly and outwardly projecting shoulder which causes the seal to expand outward to seal against the inner wall of the pipe. The screws simultaneously bite into the inner wall of the pipe to help secure the coupling assembly in place.

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