System for vapor injection pressing

Details System for vapor injection pressing System for vapor injection pressing

1990-05-21

1992-03-17

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Means to create a vacuum or apply fluid pressure within a...

100 73, 100297, 425411, 425DIG47, 425DIG119, B30B 1500

Patent

active

050964097

ABSTRACT:
Particle board, hard board, wafer board, plywood and the like are formed by vapor injection pressing using thin plates through which steam is injected into the product under consolidation, the thin plates lying adjacent the press platens. For closed steam pressing, the plate is provided with a peripheral seal which is inflatable to seal the cavity of the press using either the same stream which is injected into the product, or a second source of steam or other gas at a higher pressure.

REFERENCES:
patent: 3619450 (1971-11-01), Futo
patent: 3891738 (1975-06-01), Shen
patent: 3914079 (1975-10-01), Kober
patent: 4162877 (1979-07-01), Nyberg
patent: 4183997 (1980-01-01), Stofko
patent: 4267142 (1981-05-01), Lankheet
patent: 4357194 (1982-11-01), Stofko
patent: 4409170 (1983-10-01), Stofko
patent: 4504205 (1985-03-01), Stofko
patent: 4850849 (1989-07-01), Hsu
patent: 4854994 (1989-08-01), Breiter et al.

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