Press plate having heating means and adapted for use in single-s

Details Press plate having heating means and adapted for use in single-s Press plate having heating means and adapted for use in single-s

1975-06-09

1977-01-18

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Press forming apparatus having opposed press members

249 79, 425407, B30B 1506, B29J 508

Patent

active

040036871

ABSTRACT:
A press plate for presses used in the manufacture of fibreboard, chipboard, laminarboard and the like, in which heating of the press plate is effected by passing a heating medium, such as hot water, hot oil or steam, through passages in the press plate. The press plate comprises a center section having longitudinal passages therein and two end pieces which are welded to the center section. There are cast passages in the end sections which may intersect each other in two-level crossings. Desirably, the passages in the end sections are provided with curves at the corners of the end pieces.

REFERENCES:
patent: 258762 (1882-05-01), Hyatt
patent: 940244 (1909-11-01), Friedenthal
patent: 1550185 (1925-08-01), Steenstrup
patent: 2420813 (1947-09-01), Camerota
patent: 3594867 (1971-07-01), Pfeiffer
patent: 3830459 (1974-08-01), Strausfeld
patent: R15608 (1923-09-01), Burroughs

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