Pipes and tubular conduits – Distinct layers – With intermediate insulation layer
Patent
1995-09-21
1998-12-29
Brinson, Patrick F.
Pipes and tubular conduits
Distinct layers
With intermediate insulation layer
138148, 138156, F16L 914
Patent
active
058530312
ABSTRACT:
The present invention refers to an insulating and fixation system of steam tracers in fluid transportation pipings, comprising the supply of a first internal metallic piping (50) with diameter a few larger than the piping (52) to be heated, endowed with equally spaced internal rips (54) in the longitudinal direction for arrangement and fixation of heating extensions (56) and a second external thermoplastic piping (58) being one concentrical to each other, forming an annular space (60) and presenting itself as a double wall tubular cylinder (62), said annular space (60) forming between the said first internal piping (50) and the second external piping (58) being fulfilled with insulating material (64) without any contact with the said piping (52) to be heated or external surroundings.
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patent: 4303105 (1981-12-01), Rohner
patent: 4492089 (1985-01-01), Rohner et al.
patent: 4606957 (1986-08-01), Cohen
patent: 4653541 (1987-03-01), Oehlschlaeger et al.
patent: 4700751 (1987-10-01), Fedrick
patent: 5400602 (1995-03-01), Chang et al.
Brinson Patrick F.
Nath Gary M.
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