Pipes and tubular conduits – Distinct layers – With intermediate insulation layer
Patent
1984-07-31
1986-03-18
Marcus, Stephen
Pipes and tubular conduits
Distinct layers
With intermediate insulation layer
138151, B32B 1704
Patent
active
045762066
ABSTRACT:
A pipe insulation sleeve is made of mineral wool bound by a thermosetting binder and comprising an outer insulating layer consisting of a slab of mineral wool hardened throughout, the outer layer having a plurality of radial slits taken out from its inwards-turned surface, which slits run axially and are essentially closed and originally of V-shaped form, and an inner layer of mineral wool bonded to the outer layer by a thermosetting binder and of such thickness and density that it is in itself rigid and at the same time imparts rigidity to said outer layer. The insulating sleeves according to the invention are particularly advantageous when the inner diameter is 300 mm or greater and the thickness is more than 100 mm. A method and arrangement for production of the pipe insulation sleeve is also described.
REFERENCES:
patent: 2308607 (1943-01-01), Jackson
patent: 2405330 (1946-08-01), Ryder
patent: 2776231 (1957-01-01), Brown
patent: 3053715 (1962-09-01), Labino
patent: 3336951 (1967-08-01), Huelster
patent: 3687170 (1972-08-01), Malone et al.
patent: 4201247 (1980-05-01), Shannon
patent: 4459333 (1984-07-01), Murphy
Marcus Stephen
Thronson Mark
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