Plastic article or earthenware shaping or treating: apparatus – Diverse distinct type shaping means
Reexamination Certificate
2008-09-18
2010-06-22
Gupta, Yogendra N (Department: 1791)
Plastic article or earthenware shaping or treating: apparatus
Diverse distinct type shaping means
C264S173160, C264S209500, C264S210100, C425S325000
Reexamination Certificate
active
07740469
ABSTRACT:
Thermoplastic films and laminates are made by extrusion and stretching using differential speed rollers employing a short stretching gap of no more than one inch immediately after the extruded film product is formed. The method and apparatus control the thickness of the stretched film and impart desirable mechanical properties thereto such as film products with a high modulus for handling and suitable tensile for softness.
REFERENCES:
patent: 3374303 (1968-03-01), Metz, Jr.
patent: 3421960 (1969-01-01), Arbit
patent: 3796785 (1974-03-01), Rest et al.
patent: 3832267 (1974-08-01), Lin
patent: 3884748 (1975-05-01), Andersen et al.
patent: 4079114 (1978-03-01), Bonner
patent: 4116892 (1978-09-01), Schwarz
patent: 4144008 (1979-03-01), Schwarz
patent: 4153751 (1979-05-01), Schwarz
patent: 4260578 (1981-04-01), Moody
patent: 4289832 (1981-09-01), Schwarz
patent: 4409173 (1983-10-01), Padovani
patent: 4438167 (1984-03-01), Schwarz
patent: 4704238 (1987-11-01), Okuyama et al.
patent: 4994229 (1991-02-01), Flecknoe-Brown
patent: 5296184 (1994-03-01), Wu et al.
patent: 5382461 (1995-01-01), Wu
patent: 5422172 (1995-06-01), Wu et al.
patent: 5851937 (1998-12-01), Wu et al.
patent: 5861074 (1999-01-01), Wu et al.
patent: 5865926 (1999-02-01), Wu et al.
patent: 5907942 (1999-06-01), Eichbauer
patent: 6013151 (2000-01-01), Wu et al.
patent: 6071110 (2000-06-01), Mikkelsen
patent: 6114024 (2000-09-01), Forte
patent: 6214147 (2001-04-01), Mortellite et al.
patent: 6265045 (2001-07-01), Mushaben
patent: 6287499 (2001-09-01), Roby et al.
patent: 6676871 (2004-01-01), Benassi et al.
patent: 6719935 (2004-04-01), Tunc
patent: 6767501 (2004-07-01), Kirjavainen
patent: 6811643 (2004-11-01), McAmish et al.
patent: 6818083 (2004-11-01), McAmish et al.
patent: 0848663 (1998-06-01), None
patent: 1038653 (2000-09-01), None
patent: 1095758 (2001-05-01), None
patent: 1011404 (2000-08-01), None
Cancio Leopoldo V.
Mortellite Robert M.
Mushaben Thomas G.
Wu Pai-Chuan
Clopay Plastic Products Company, Inc.
Gupta Yogendra N
Luk Emmanuel S
Wood Herron & Evans L.L.P.
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