Heat exchange – With repair or assembly means
Patent
1977-04-15
1978-05-23
Davis, Jr., Albert W.
Heat exchange
With repair or assembly means
291573R, 291573A, 165105, F28D 1500
Patent
active
040905551
ABSTRACT:
A separable heat pipe assembly for stabilizing the generally frozen soil adjacent and supporting a structural member or foundation in permafrost or similar regions, including a cooperative combination of a tubular structure installed in a permafrost environment, a heat pipe element having its lower portion installed in the structure and positioned at least in proximity longitudinally to the wall of the structure, and soil or other substance filling the space remaining between the lower element portion and the structure wall. The upper portion of the heat pipe element has a thicker wall than its lower portion and can be provided with threads thereon. A sleeve-type radiator can be provided with complementary threads therein so that the radiator can be threadedly engaged to the upper element portion. The depth and pitch of the threads can be changed to vary the heat transfer surface area obtainable between the engaged radiator and upper element portion. Alternatively, the radiator and upper element portion are not threaded but can be sized to provide for an interference press fit to secure them together. A lubricant-preservative-thermal substance can be used to fill any interface space between the mating surfaces of the threadedly engaged or press-fitted radiator and upper element portion.
REFERENCES:
patent: 280540 (1883-07-01), Weatherly
patent: 3572426 (1971-03-01), Edwards
patent: 3739234 (1973-06-01), Bylund et al.
patent: 3884293 (1975-05-01), Pessolano et al.
Anderson John H.
Waters Elmer D.
Davis Jr. Albert W.
Jason Walter J.
Kohlmann Henry G.
McDonnell Douglas Corporation
Royer Donald L.
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