Plastic article or earthenware shaping or treating: apparatus – Three or more endless surfaces cooperating to define a...
Patent
1998-12-02
2000-12-26
Davis, Robert
Plastic article or earthenware shaping or treating: apparatus
Three or more endless surfaces cooperating to define a...
425392, 425384, 2642974, 2642978, B29C 5384
Patent
active
06164949&
ABSTRACT:
A curling screw adjustment mechanism for changing the radial spacing of the curling screws of a lip curling machine forming a lip on a thermoformed plastic container such as a cup, in which the curling screws are each mounted on separate interlinked pivoted mounting plates which are moved in unison by adjustments of a threaded rod. The curling screws are also cooled by indirect contact with a cooling liquid circulated through separate aluminum arbors on which the stainless steel curling screws are mounted to allow changing the curling screws without spillage of coolant.
REFERENCES:
patent: 3363283 (1968-01-01), Weber
patent: 3579737 (1971-05-01), Gerber et al.
patent: 3914102 (1975-10-01), Brown
patent: 3920373 (1975-11-01), Brown
patent: 4235579 (1980-11-01), Kurz et al.
patent: 4391768 (1983-07-01), Arends et al.
patent: 5118277 (1992-06-01), Padovani
Benefiel John R.
Brown Machine LLC.
Davis Robert
Nguyen Thukhanh T.
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