Conduit closure system for closing a conduit having a gripless i

Details Conduit closure system for closing a conduit having a gripless i Conduit closure system for closing a conduit having a gripless i

1986-10-08

1988-06-28

Thronson, Mark J.

Pipes and tubular conduits

With closures and plugs

Inflatable

376204, F16L 5512

Patent

active

047532726

ABSTRACT:
A system is provided for closing a conduit having a gripless inner surface, comprising a sealing wall and an annular seal disposed between the wall and the conduit. Beams connected to the wall by adjustable tie-rods, disposed bearing against the inlet end of the conduit, support and immobilize said sealing wall.

REFERENCES:
patent: 2064569 (1936-12-01), Santucci
patent: 2800242 (1957-07-01), Sauthoff
patent: 3479831 (1969-11-01), Teague, Jr.
patent: 4518015 (1985-05-01), Fischer
patent: 4548783 (1985-10-01), Dalke et al.
patent: 4591477 (1986-05-01), Rettew
patent: 4671326 (1987-06-01), Wilhelm et al.

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