Flexible tubular conduit for transferring fluids particularly at

Details Flexible tubular conduit for transferring fluids particularly at Flexible tubular conduit for transferring fluids particularly at

1981-02-27

1983-12-20

Shepperd, John W.

Fluid handling

With heating or cooling of the system

Circulating fluid in heat exchange relationship

220219, F16K 4900

Patent

active

044211368

ABSTRACT:
A drain pipe arrangement for draining water from a floating roof of a storage reservoir includes a flexible drain pipe connected to the roof, and a flexible heating element within the drain pipe. The flexible heating element takes the form of two rigid metal tubes twisted on each other and having their upper ends connected together. A pump and heater provide for circulating heated fluid through the tubes to prevent drain water from freezing in the drain pipe.

REFERENCES:
patent: 607932 (1898-07-01), Husham
patent: 1994934 (1935-03-01), Wagenseller
patent: 2482468 (1949-09-01), Cranmer
patent: 2497645 (1950-02-01), Wiggins
patent: 2936791 (1960-05-01), Farrar
patent: 2980172 (1961-04-01), Thompson
patent: 3315703 (1967-04-01), Matthews et al.
patent: 3941159 (1976-03-01), Toll
patent: 4194536 (1980-03-01), Stine et al.
patent: 4279270 (1981-07-01), Francis

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