Pipes and tubular conduits – Distinct layers – With intermediate insulation layer
Patent
1978-06-05
1980-01-08
Aegerter, Richard E.
Pipes and tubular conduits
Distinct layers
With intermediate insulation layer
138109, 138148, 138123, 165185, F16L 914
Patent
active
041823796
ABSTRACT:
In a very high or very low temperature duct system in which duct insulation is terminated at selected locations so as to be not coextensive with the duct, an annular metal perforated or mesh screen support flange is used, as a low conductor of heat or cold, between the duct and an outer insulation cover to retain the end of the insulation and to support its usually very thin cover. The screen may be Z-shaped in cross section having a small diameter annular portion to surround and be secured to the duct adjacent the end of the insulation. A generally radially extending portion of the screen extends outwardly from the small diameter portion and adjacent the end of the insulation. The periphery of the radially extending portion is in alignment with the outer peripheral surface of the insulation and the outer peripheral surface of the insulation cover. A large diameter annular portion of the screen extends longitudinally from the periphery in the direction opposite the small diameter portion, and is adapted to surround the insulation and its cover and be secured thereto.
The screen may also be U or channel-shaped with one longitudinally directed leg secured to the insulation cover and the other leg secured to the duct under the insulation.
REFERENCES:
patent: 2133376 (1938-10-01), Brown
patent: 2510825 (1950-06-01), Lechtenberg
patent: 2650112 (1953-08-01), Kinkead
patent: 2872947 (1959-02-01), Isenberg
patent: 2894537 (1959-07-01), Carr
patent: 3199417 (1965-08-01), Young et al.
patent: 3381774 (1968-05-01), Stode et al.
patent: 3602630 (1971-08-01), Sassin
patent: 3653665 (1972-09-01), Veerling et al.
patent: 4063755 (1977-12-01), Merz
patent: 4124040 (1978-11-01), Miller
Christensen Allison L.
Lestak Robert G.
Aegerter Richard E.
Bryant III James E.
SSP Products, Inc.
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