Pipes and tubular conduits – With closures and plugs – Inflation stem type
Patent
1997-05-16
1999-06-29
Brinson, Patrick
Pipes and tubular conduits
With closures and plugs
Inflation stem type
138 96R, 138 96T, 220796, F16L 5510
Patent
active
059154187
ABSTRACT:
A cap capable of being used to close off an unthreaded cylindrical member and capable of being removed after closing off the unthreaded cylindrical member is disclosed. This cap has a one-piece, generally circular, relatively flexible, relatively impervious, self-supporting body. It is made of elastomeric material, preferably rubber, and is shaped so as to include between about 2 and about 12 successive levels, each level having a larger diameter than the level before it. This multi-level cap is useful for capping water or sanitary systems during testing of the systems. The cap preferably has 3 levels which fit three different standard sized pipes, one pipe at a time.
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"Plumbing and Mechanical" magazine, Aug., 1997, p. 105.
Brinson Patrick
Harleston Kathleen M.
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