Plastic article or earthenware shaping or treating: apparatus – Control means responsive to or actuated by means sensing or...
Patent
1975-06-24
1977-06-14
Husar, Francis S.
Plastic article or earthenware shaping or treating: apparatus
Control means responsive to or actuated by means sensing or...
425192R, 425381, 425466, 425DIG33, B29F 304
Patent
active
040294587
ABSTRACT:
An extrusion die having a linearly movable mandrel that controls the thickness of the extrudate as it emanates from the die head. A piston within the die head is made part of the mandrel to control the position of the mandrel's edge relative to the die's outlet opening, with sensing means in the die assembly and being operative to provide a signal indicative of the relative position of such mandrel to the die head.
REFERENCES:
patent: 3368241 (1968-02-01), Williams
patent: 3649148 (1972-03-01), Waltman et al.
patent: 3764253 (1973-10-01), Waterloo
patent: 3865528 (1975-02-01), Roess
Kim Heung Tai
Wilson Gary F.
Husar Francis S.
Januszkiewicz Joseph
Rosenbaum Mark
Shira, Jr. W. A.
The B.F. Goodrich Company
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