Pipe closure apparatus

Details Pipe closure apparatus Pipe closure apparatus

1977-02-16

1978-03-07

Queisser, Richard C.

Measuring and testing

With fluid pressure

Clamp, plug, or sealing feature

138 90, 220240, F16L 5510, G01M 300

Patent

active

040772500

ABSTRACT:
This disclosure is directed to a temporary enclosure for a pipe. It includes a recessed opening in a body having an internal O-ring seal mechanism for engaging the end of a pipe. It is held to the pipe by incorporating a surrounding lip about the exterior of the pipe. The lip supports at spaced locations around the periphery three or four sets of pipe gripping devices. Each set incorporates a link which is pivoted to an arcuate body having serrated teeth on the innerface which contacts the pipe. As pressure is increased in the pipe, the device is forced off of the pipe. When this occurs, the connective link rotates, causing the peripheral gripper with teeth to bite into the pipe and thereby grip and hold the pipe.

REFERENCES:
patent: 2699802 (1955-01-01), Nilsson
patent: 3647108 (1972-03-01), Kemp
patent: 3765560 (1973-10-01), Kemp

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