Plastic article or earthenware shaping or treating: apparatus – With foraminous or absorbent means for removal of vehicle or... – Vacuum means
Patent
1977-06-22
1980-06-10
McQuade, John
Plastic article or earthenware shaping or treating: apparatus
With foraminous or absorbent means for removal of vehicle or...
Vacuum means
425372, B30B 506
Patent
active
042070430
ABSTRACT:
Apparatus for producing fiberboard and the like from fibrous sheeting material by the dry method, in which the fibrous sheeting material is advanced from a forming station while supported on a perforated endless belt to a pressing station where it is compressed to desired thickness and compactness. During the advancement of the sheeting material from the forming station to the pressing station, air is evacuated from the fibrous material by suction from beneath the endless belt while the sheeting is being simultaneously subjected to a preliminary compression, without disturbing the fiber orientation therein, but sufficient to render the sheeting material self-supporting during its further advancement to the pressing station, from which it is passed to cutting station for subdivision into board units.
REFERENCES:
patent: 2331145 (1943-10-01), Slayter
patent: 2697254 (1954-12-01), Gordon
patent: 2975470 (1961-03-01), Snelson et al.
patent: 3025197 (1962-03-01), Sheidby
patent: 3051219 (1962-08-01), Kaiser
patent: 3782875 (1974-01-01), Alschewski
Defibrator Fiberboard AB
McQuade John
Munson Eric Y.
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