Prevention of freeze damage to liquid conduits

Details Prevention of freeze damage to liquid conduits Prevention of freeze damage to liquid conduits

1980-05-16

1982-03-30

O'Connor, Daniel J.

Stoves and furnaces

Tool having fluid fuel burner

Curling iron

137 59, 138 28, 237 80, F24J 302

Patent

active

043219080

ABSTRACT:
Freeze damage to pipes containing liquids is accomplished by including in the interior of the pipe an elongated section of tubing sealed at each end and containing internally an inert gas under pressure; a means for attaching one end of the tubing to the pipe to prevent linear axial movement of the tubing and a means at the other end of the tubing to maintain it concentrically within the pipe and to permit safe linear axial expansion of the tubing.

REFERENCES:
patent: 157190 (1874-11-01), Calantarients
patent: 386098 (1888-07-01), Whitner
patent: 1952780 (1934-03-01), Small
patent: 2029630 (1936-02-01), McMichael
patent: 2409304 (1946-10-01), Morrison
patent: 2599325 (1952-06-01), Fritzberg
patent: 3407837 (1968-10-01), Fulton et al.
patent: 3480027 (1969-11-01), Noland
patent: 3878868 (1975-04-01), Wheeler
patent: 3989032 (1976-11-01), Harrison
patent: 4227512 (1980-10-01), Riley

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