Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1991-05-13
1992-08-11
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
264 407, 2641771, 26417716, 4251311, 4251335, 425462, 425145, 425192R, B29C 4706, B29C 4792
Patent
active
051376750
ABSTRACT:
An apparatus and method for coextruding substrate and coating materials having different temperature dependent properties, wherein one or more predetermined amounts of the coating are metered onto one or more predetermined surfaces of the substrate. A facefed coextrusion die, including a die plate for sizing and shaping the substrate and a feed block/metering tube assembly nested in the die plate for metering the coating onto the substrate, is mounted adjacent to an outlet opening of an extruder for the substrate. The metering tube is rotatably adjustably mounted in the feed block at one of its ends, and communicates with an extruder for the coating material at its other end. The metering tube has a pair of spaced gates formed therein which are generally alignable with a pair of spaced channels formed in the feed block to enable coating material to flow through the metering tube feed block and into contact with the substrate being extruded through the die plate. The metering tube thermally isolates the coating material from the substrate material until just prior to contact therebetween to prevent premature cure of the substrate, and is manually rotatable for adjusting the position of the tube gates with respect to the feed block channels. Selective rotation of the metering tube in a clockwise or counterclockwise direction restricts the flow of coating material through one of the pairs of generally aligned metering tube gates and feed block channels while flow of the coating material through the other pair remains unrestricted.
REFERENCES:
patent: Re30789 (1981-11-01), Pilgrim et al.
patent: 2138378 (1938-11-01), Johnson
patent: 3046602 (1962-07-01), Houvener
patent: 3155540 (1964-11-01), Loeffler et al.
patent: 3193428 (1965-07-01), Palmer
patent: 3706173 (1972-12-01), Taylor
patent: 3743460 (1973-07-01), Woolridge
patent: 3836297 (1974-09-01), Weaver
patent: 3841807 (1974-10-01), Weaver
patent: 3904470 (1975-09-01), Fukuki et al.
patent: 3962018 (1976-06-01), Costemalle et al.
patent: 4076891 (1978-02-01), Yardley et al.
patent: 4090906 (1978-05-01), Zoller
patent: 4093414 (1978-06-01), Swiatovy, Jr.
patent: 4169180 (1979-09-01), McDonagh
patent: 4184000 (1980-01-01), Denman
patent: 4187270 (1980-02-01), Bartrum
patent: 4198983 (1980-04-01), Becker et al.
patent: 4292355 (1981-09-01), Bonis
patent: 4467061 (1984-08-01), Yamamoto et al.
patent: 4531326 (1985-07-01), Ballocca et al.
patent: 4537825 (1985-08-01), Yardley
patent: 4600461 (1986-07-01), Guy
patent: 4623501 (1986-11-01), Ishizaki
patent: 4676856 (1987-06-01), Shigeki et al.
patent: 4698193 (1987-10-01), Bernitz et al.
patent: 4701376 (1987-10-01), Hermann et al.
patent: 4833194 (1989-05-01), Kuan et al.
patent: 4856975 (1989-08-01), Gearhart
patent: 4883690 (1989-11-01), Carter
patent: 4889669 (1989-12-01), Suzuki
patent: 4913976 (1990-04-01), Brooks et al.
patent: 4923759 (1990-05-01), Brooks et al.
patent: 4933032 (1990-06-01), Kunert
patent: 4960375 (1990-10-01), Saito et al.
patent: 4963403 (1990-10-01), Roberts et al.
patent: 4965103 (1990-10-01), Roberts et al.
patent: 5013379 (1991-05-01), Brooks et al.
GenCorp Inc.
Thurlow Jeffery
LandOfFree
Apparatus and method for coextruding materials having different does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for coextruding materials having different , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for coextruding materials having different will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-344742