Plug assembly for sealing a pressure fluid passage in a manifold

Details Plug assembly for sealing a pressure fluid passage in a manifold Plug assembly for sealing a pressure fluid passage in a manifold

1981-02-02

1983-12-20

Bryant, III, James E.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

29521, 29523, 411 49, F16L 5512

Patent

active

044211376

ABSTRACT:
A plug assembly comprising a generally cylindrical expansion sleeve having a socket portion which receives a wedging nut. One of the nut and socket portion is tapered such that the sleeve may be radially expanded as the nut enters more deeply into the socket portion. A screw element is threadedly received by the nut and by a clearance opening through the sleeve. The screw element is provided with a head which engages the sleeve on the side axially opposite the socket portion whereby threading of the screw element into the nut draws the latter more deeply into the socket portion. The outer periphery of the sleeve is preshaped to be out-of-round to provide for an interference fit with a cylindrical bore which is to be plugged.

REFERENCES:
patent: 688756 (1901-12-01), Tripp
patent: 1234176 (1927-07-01), Kennedy
patent: 2764184 (1956-09-01), Fitzhugh et al.
patent: 2796907 (1957-06-01), Dumas
patent: 2836918 (1958-06-01), Pula et al.
patent: 3135414 (1964-06-01), Lee
patent: 3156373 (1964-11-01), Willis
patent: 3421404 (1969-01-01), Jacobs
patent: 3525365 (1970-08-01), Meulendyk et al.
patent: 3691609 (1972-09-01), Ice et al.
patent: 3941028 (1976-03-01), Lobello et al.
patent: 3983904 (1976-10-01), Laviano
patent: 4259890 (1981-04-01), Walsh

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