Mechanical clean-out test plug

Details Mechanical clean-out test plug Mechanical clean-out test plug

2009-03-26

2011-10-25

Brinson, Patrick F (Department: 3754)

Pipes and tubular conduits

With closures and plugs

Test plugs

C138S089000, C138S094000, C138S093000

Reexamination Certificate

active

08042576

ABSTRACT:
The present invention provides a test plug for use with a clean-out that extends at an angle from a pipe section of a pipe system. In general, the test plug includes a sealing assembly that is actuated by an actuating member extending at an angle from the sealing assembly. The sealing assembly includes a first plate, a second plate, a valve that is configured to draw the first and second plates together, and a ring-shaped sealing member located between the first and second plates. In various embodiments, the actuating member is configured to move the valve between an open position, in which test media may be communicated through at least one opening in the first plate and through at least one opening in the second plate, and a closed position, in which the valve seals the opening of the first plate and in which the sealing member extends outwardly to seal against an internal surface of the pipe section.

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G.T. Water Products, Inc.; SAFE-T-SEAL Test Plugs product information (5 pgs.) http://www.gtwaterproducts.com/safe.html (cited visited Nov. 7, 2008).
G.T. Water Products, Inc.; New Innovations (2 pgs.) http://www.gtwaterproducts.com
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Cherne Industries Inc.; Pneumatic Plugs—Long Test-Ball® & MS2® Test-Ball product information (1 pg.) www.cherneind.com.
IPS Corporation; Multi-Size Pneumatic Pipe Plugs product information (1 pg).

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