Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1996-12-24
1998-09-29
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
26417314, B29C 4706
Patent
active
058142584
ABSTRACT:
An improved method for forming a multilayer sheet or multilayer film and an improved forming die apparatus, include making the thickness of the multilayer sheet or multilayer film uniform along the width. In the forming die apparatus, an elastic choke bar is disposed in a passage of the melted resin along the width of the passage. A plurality of bolt members are arranged to abut against the choke bar. The choke bar is pushed and pulled by each bolt member, and a part of the choke bar corresponding to the bolt member is bent with regard to the passage. Thereby, the clearance along the width of the passage can be adjusted for every bolt member.
REFERENCES:
patent: 3480998 (1969-12-01), Erdberg
patent: 4592885 (1986-06-01), Ichino et al.
patent: 4695236 (1987-09-01), Predohl et al.
patent: 5147195 (1992-09-01), Cloeren
patent: 5389324 (1995-02-01), Lewis et al.
Patent Abstracts of Japan vol. 003, No. 118 (C-060), Oct. 4, 1979; & JP 54 097663 A (Mitsubishi Heavy Ind Ltd), Aug. 1, 1979 *Abstract.
Wirtz R: "Werkzeuge Zur Extrusion Von Tafeln Und Flachfolien" Kunststoffberater, vol. 40 No. 10, Oct. 1, 1995; Heidelberg, DE pp. 27-33 XP000548360.
Ogawa Shotaro
Ozaki Kazuo
Fuji Photo Film Co. , Ltd.
Tentoni Leo B.
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