Method and apparatus for manufacturing articles by pressing and

Details Method and apparatus for manufacturing articles by pressing and Method and apparatus for manufacturing articles by pressing and

1982-05-10

1984-09-11

Camby, John J.

Heating

Processes of heating or heater operation

Including preparing or arranging work for heating

264320, 432 13, F27D 500, F27B 1400

Patent

active

044708033

ABSTRACT:
The invention pertains to the manufacture of articles of thermosetting plastics and other materials. In a first stage, a solid article is formed from a particulate material by introducing such material into a first chamber defined partially by the backing surface of a backing member and partially by the opposed pressing surface of a pressing member. The backing member is frangible and is removably mounted on a support. The first chamber is then closed and the pressing member advanced toward the backing surface to contract the first chamber and compress the particulate material between the pressing and backing surfaces to form the solid article. The pressing member is then retracted, the first chamber is opened, and the backing member and solid article are removed from the support as a unit. Finally, the backing member is fractured and the fragments are removed from the solid article. In a second stage, the convoluted article, or any other similar body is supported in a chamber structure. A filler is disposed between the body and the chamber structure in contact with at least a major portion of the exposed surfaces of the body. The filler and body are then heated, while restricting movement of the filler.

REFERENCES:
patent: 2447434 (1948-08-01), Schwarzkopf
patent: 2823415 (1958-02-01), Martin et al.
patent: 3897531 (1975-07-01), Overhoff et al.
patent: 3956452 (1976-05-01), Saito

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