Blank plug assembly

Details Blank plug assembly Blank plug assembly

1986-07-07

1988-08-09

Recla, Henry J.

Pipes and tubular conduits

With closures and plugs

Inflation stem type

220235, F16L 5512

Patent

active

047621516

ABSTRACT:
A plug assembly for sealing a conduit. The assembly includes an annular, deformable sealing member, bound by an inner surface that includes opposed convexly curved surface portions. Opposed disks, each having an annular boundary edge, are positioned with the boundary edges of the disks underlying the inner surface portions of the sealing member. These disks are drawn together to produce radial expanding of the sealing member in regions where the member overlies the disks.

REFERENCES:
patent: 100115 (1870-02-01), Brown
patent: 2182051 (1939-12-01), Kurth
patent: 2603347 (1952-07-01), Fish
patent: 2720893 (1955-10-01), Foreman
patent: 2812025 (1957-11-01), Teague et al.
patent: 3017053 (1962-01-01), Mitchell
patent: 3371716 (1968-03-01), Current
patent: 3618809 (1971-11-01), Martino
patent: 3618811 (1971-11-01), Martino
patent: 3667640 (1972-06-01), Morrow
patent: 4188675 (1980-02-01), Ast
patent: 4303101 (1981-12-01), Tholen
patent: 4585033 (1986-04-01), Westman

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