Press spar for heated panel press

Details Press spar for heated panel press Press spar for heated panel press

1975-12-29

1977-09-06

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Press forming apparatus having opposed press members

Including both heating and cooling means

425338, 425384, 100 93P, B29C 300

Patent

active

040465004

ABSTRACT:
A press spar construction for a heated panel press producing chipboard panels and the like under elevated temperatures and pressures, the press spar structure having a thermal barrier arranged between each pressure plate and its supporting structure, the thermal barrier consisting of rows of insulating pressure blocks and spaced steel pressure blocks arranged between the insulating pressure blocks in the areas of maximum pressure concentration. The insulating pressure blocks are coated for imperviousness against humidity, and both types of blocks have metallic shrouds with anti-friction surface coatings. Shimming sheets are placed between the blocks and the shrouds, where necessary.

REFERENCES:
patent: 3545044 (1970-12-01), Rebovich et al.
patent: 3594867 (1971-07-01), Pfeiffer
patent: 3685932 (1972-07-01), Pfeiffer
patent: 3775033 (1973-11-01), Pfeiffer

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