Pipe restrainer

Details Pipe restrainer Pipe restrainer

1990-06-14

1991-12-10

Reese, Randolph A.

Pipe joints or couplings

Packed

Externally with clamp

285374, 285404, F16L 1908

Patent

active

050711750

ABSTRACT:
A pipe restraining mechanism for use in a pipe retainer gland to secure the gland on a pipe such as PVC pipe and ductile iron pipe including a housing forming a part of the retainer gland and having a pocket therein opening inside of the gland, a wedge operator member on the top wall of the housing, and a pipe gripping wedge in the housing pocket having inside teeth for engagement with the outer surface of a pipe and adapted to be initially mechanically pressed into a pipe surface by the operator member and thereafter fully engaged with the pipe surface responsive to hydraulic pressure in the pipe causing a wedging action with the operator member and thereafter a turning action between the wedge and a housing surface to drive the wedge teeth into the pipe surface and seat the wedge on the pipe surface.

REFERENCES:
patent: 3941410 (1976-03-01), Miyaoka
patent: 4092036 (1978-05-01), Sato et al.
patent: 4127290 (1978-11-01), Hutschlechner
patent: 4417754 (1983-11-01), Yamaji
patent: 4647083 (1987-03-01), Hashimoto
patent: 4664426 (1987-05-01), Ucki
patent: 4848808 (1989-07-01), Pannell et al.

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