Method of field insulating pipe joints

Details Method of field insulating pipe joints Method of field insulating pipe joints

1982-11-01

1984-11-27

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

29157R, 29460, 156245, 1563042, 156313, 285 47, 285286, 285288, 264 465, 264230, B21D 3900

Patent

active

044843860

ABSTRACT:
A method of making insulated pipe joints in the field. The method includes the steps of providing a rigid shroud which is larger than the fitting from fitting end to fitting end, welding a first pipe length to a first end of the fitting, moving the shroud over the fitting to project the second end of the fitting beyond the second end of the shroud, welding the second pipe length to the second end of the fitting, centering the shroud on the fitting, enclosing the gaps between the fitting shroud and the shrouds of the pipe lengths by mold members, pouring a foamable insulation into the space between the fitting and fitting shroud and into the gaps, setting the insulation, removing the molds to expose the gap areas, and thereafter applying a protective coating to the gaps which coating overlaps the fitting shroud and the pipe length shrouds.

REFERENCES:
patent: 2924245 (1960-02-01), Wilson
patent: 3453716 (1969-07-01), Cook
patent: 3645564 (1972-02-01), Corriston
patent: 3731710 (1973-03-01), Bauer et al.
patent: 3793411 (1974-02-01), Stonitsch
patent: 3949461 (1976-04-01), Thastrup
patent: 4049480 (1977-09-01), Kutschke
patent: 4084842 (1978-04-01), Stonitsch
patent: 4221405 (1980-09-01), Stonitsch
patent: 4363681 (1982-12-01), Williams
patent: 4441743 (1984-04-01), Steenbergen

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