Test plug assembly

Details Test plug assembly Test plug assembly

1986-01-23

1987-04-21

Bryant, III, James E.

Pipes and tubular conduits

With closures and plugs

Test plugs

138 93, 73 498, F16L 5512

Patent

active

046588612

ABSTRACT:
The test plug assembly is used for pressure testing of fluid drain and vent systems. The assembly comprises an inflatable body portion or bulb connected to a rigid holder portion. The rigid holder portion includes a stem section and a plug section. The stem section is hollow and opens at one end into the inflatable body portion and at the other end receives a valve for pumping fluid pressure into the bulb. The body portion is separable from the plug section and includes a clamping edge structure extending along the entire periphery of an open mouth. The plug section has an outer structural configuration to engage the test opening of the fluid drain and vent systems. The plug section also has an inner clamping surface to engage the open mouth clamping edge structure of the body portion. A clamping mechanism is used to secure the clamping edge structure of the body portion against the inner clamping surface of the plug section.

REFERENCES:
patent: 614749 (1898-11-01), Pallas
patent: 4122869 (1978-10-01), Roberson
patent: 4190196 (1980-02-01), Larsen
patent: 4203473 (1980-05-01), Roberson
patent: 4417598 (1983-11-01), De Pirro

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