Plastic article or earthenware shaping or treating: apparatus – Including means advancing continuous length work through...
Patent
1995-08-07
1997-07-08
Nguyen, Khanh P.
Plastic article or earthenware shaping or treating: apparatus
Including means advancing continuous length work through...
425186, 425392, 4254031, 2642094, B29C 3516, B29C 4790
Patent
active
056458614
ABSTRACT:
A guide roller assembly is provided for use with a vacuum sizing apparatus having an elongated vacuum cooling tank containing a water bath through which plastic extrudate passes longitudinally. The guide roller assembly has a plurality of guide rollers each individually mounted on its own roller axle. A roller assembly pivot shaft is removably and pivotally secured within the elongated vacuum tank and supports the axles of the respective guide rollers. The guide rollers may be pivotally rotated between a working position where the axles are horizontal and the guide rollers bear down upon the extrudate passing through the vacuum cooling tank and a nonworking position where the guide rollers are raised above the water surface of the vacuum cooling tank and to one side of the tank. The entire guide roller assembly may be removed from the vacuum tank by retracting the telescoping pivot shaft and removing the ends of the pivot shaft from recesses formed in the end walls of the vacuum cooling tank.
REFERENCES:
patent: 4044084 (1977-08-01), Phipps
patent: 4247271 (1981-01-01), Yonekara et al.
patent: 5008051 (1991-04-01), DeCoursey et al.
patent: 5271786 (1993-12-01), Gorney et al.
patent: 5340295 (1994-08-01), Preiato et al.
patent: 5441394 (1995-08-01), Keilert et al.
patent: 5464335 (1995-11-01), Bessemer et al.
Bessemer Robert Henry
Czarnik David H.
Nguyen Khanh P.
The Conair Group, Inc.
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