Method of depositing a membrane within a conduit

Pipes and tubular conduits – Repairing – Patches

Patent

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Details

2940209, 29451, 29452, 29456, F16L 5516

Patent

active

045894477

ABSTRACT:
A method of depositing a coiled member and, optionally, a membrane in a conduit in contact with the walls of the conduit involves placement of the coiled member in the conduit in a longitudinally expanded condition and releasing the force on the coiled member to cause it to contract and expand against the walls of the conduit.

REFERENCES:
patent: 2300057 (1942-10-01), Meyer
patent: 2329286 (1943-09-01), Meyer
patent: 2948954 (1960-08-01), Ramsa
patent: 2961749 (1960-11-01), Brown, Jr. et al.
patent: 3034869 (1962-05-01), Peterson
patent: 3267967 (1966-08-01), Guthrie
patent: 3474832 (1969-10-01), Broadhead et al.
patent: 3787956 (1974-01-01), Miller
patent: 3895652 (1975-07-01), Zach
patent: 4080706 (1978-03-01), Heilman et al.
patent: 4109684 (1978-08-01), Fernandez

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