Heat suppressing wrap

Details Heat suppressing wrap Heat suppressing wrap

1998-10-15

2000-06-27

Ryan, Patrick

Metal fusion bonding

Process

With protecting of work or filler or applying flux

228 59, 228119, 138 97, 285 15, 442136, B23K 522, F16P 106

Patent

active

060796138

ABSTRACT:
A heat suppressing wrap is provided for suppressing the transfer of thermal energy along a pipe during a thermal joining operation, such as a high temperature, open flame welding, brazing or soldering operation. The heat suppressing wrap is a blended fabric cloth made of at least 50% cotton that is saturated with a liquid solution of a heat, fire and smoke inhibiting agent, and preferably, a fire fighting agent. The fire fighting agent is preferably a fire fighting foam, and most preferably, is PYROCAP B-136.TM. fire fighting foam manufactured by PYROCAP International, Inc. of Woodbridge, Va. Short lengths of the wrap are rolled and placed in a container with the liquid solution so that the cloth wraps remain saturated with the fire fighting agent. The wraps are then positioned, and preferably wrapped, over the pipe adjacent a pipe joint to greatly reduce the transfer of thermal energy along the pipe generated by the thermal joining operation. It has been found that the area away from the pipe joint is maintained at or about room temperature even if the temperature of the pipe in the vicinity of the pipe joint exceeds about 875.degree. Fahrenheit.

REFERENCES:
patent: 2188925 (1940-02-01), Ronay
patent: 3372852 (1968-03-01), Cornell
patent: 3430686 (1969-03-01), Parkison
patent: 3494020 (1970-02-01), Cornell
patent: 3593409 (1971-07-01), Silverstein
patent: 3929270 (1975-12-01), Keith
patent: 3972466 (1976-08-01), Keith
patent: 4920000 (1990-04-01), Green
patent: 5001320 (1991-03-01), Conley et al.
patent: 5634672 (1997-06-01), Stack et al.

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