Threaded expansion plugs

Details Threaded expansion plugs Threaded expansion plugs

2008-09-04

2009-12-15

Brinson, Patrick F (Department: 3754)

Pipes and tubular conduits

With closures and plugs

C138S090000, C220S234000, C029S559000

Reexamination Certificate

active

07631664

ABSTRACT:
A plug for sealing a bore in the wall of a high-pressure fluid container is provided. The plug includes a sloping surface adapted to seal at an edge between surfaces of different diameter. A method for sealing the bore by forming a socket in the wall that is adapted to receive the plug is provided. The socket may be formed by reaming a tapered hole to form a surface having a minimum diameter greater than the diameter of the bore and tapping a segment of the tapered hole. A ball may be forced into a cup of the plug to increase radial force between the plug and the socket.

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