Method of manufacturing contact bodies

Details Method of manufacturing contact bodies Method of manufacturing contact bodies

1975-04-01

1977-05-24

Hoffman, James R.

Coating processes

Heat decomposition of applied coating or base material

Base material decomposed or carbonized

427372B, 427372R, 427376A, 427444, B05D 304, B32B 328, B32B 1908

Patent

active

040256685

ABSTRACT:
A method of manufacturing a contact body is disclosed wherein the contact body is built up of thin layers of hydrated asbestos fibers shaped between mutually spaced support positions to form channels extending from end to end of the contact body. The layers have a coating thereon of at least one inorganic substance and the layer body is heated to at least the dehydration temperature of the asbestos, at which the water of crystallization is released by passing a current of hot gas through the channels in the contact body for a relatively short period of time in order to effect the intended action on the body.

REFERENCES:
patent: 1972500 (1934-09-01), Toohey et al.
patent: 2282230 (1942-05-01), MacAlpine
patent: 2354350 (1944-07-01), Schuetz
patent: 2354351 (1944-07-01), Schuetz
patent: 2434466 (1948-01-01), Marc
patent: 3499812 (1970-03-01), Glav

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