Plastic coupling for plastic pipe having a completed installatio

Details Plastic coupling for plastic pipe having a completed installatio Plastic coupling for plastic pipe having a completed installatio

1998-08-19

2000-10-10

Nicholson, Eric K.

Pipe joints or couplings

With indicator, alarm or inspection means

285342, 285372, 285421, 285337, F16L 1706

Patent

active

061293911

ABSTRACT:
A plastic pipe coupling for the joining of plain end plastic pipe that includes a pair of longitudinally displaced annular followers, a tubular middle ring extending between the opposite followers, an annular gasket within each follower contiguous to the middle ring, gripper segments within the follower that are operative during tightening installation of the follower about a received pipe end to effect a penetrating restraining grip against the surface of the pipe end and means on each of said followers cooperating with the end configuration of the middle ring to effect a snap-in-interlock and a perceptive signal when installation is completed.

REFERENCES:
patent: 3544119 (1970-12-01), Glover
patent: 3853338 (1974-12-01), Wilson
patent: 4372586 (1983-02-01), Rosenberg et al.
patent: 4569542 (1986-02-01), Anderson et al.
patent: 4664427 (1987-05-01), Johnston
patent: 5100183 (1992-03-01), Montesi et al.
patent: 5335946 (1994-08-01), Dent et al.
2" IPS Universal Maxi-Hold-B Coupling Systems, Inc. (Dates Unknown).

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