Plumbing leak testing apparatus

Details Plumbing leak testing apparatus Plumbing leak testing apparatus

2006-03-21

2006-03-21

Brinson, Patrick (Department: 3754)

Pipes and tubular conduits

With closures and plugs

Inflatable

C138S089000, C138S090000, C251S149600, C137S454200

Reexamination Certificate

active

07013926

ABSTRACT:
A plumbing pipe plug apparatus configured for insertion into a section of pipe and adapted to radially expand so as to engage the inner surface of the pipe and form a positive seal therewith is disclosed. The pipe plug is adapted with a conduit having a check valve that opens in response to fluid pressure to enable the injection into the plumbing system of a pressurized fluid, such as water, to pressurize the system downstream of the plug to allow for leak inspection and pressure testing.

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patent: 6361015 (2002-03-01), Warmerdam
patent: 6899138 (2005-05-01), Lundman
patent: 6901966 (2005-06-01), Onuki et al.

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