Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting
Patent
1995-01-23
1996-05-21
Thurlow, Jeffery R.
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
264 407, 2641761, 26421121, 264349, 425145, 425149, 425170, 425208, 4253823, B29C 4792
Patent
active
055186726
ABSTRACT:
An apparatus is provided for extruding a polymer which is subject to periodic surges. The apparatus includes a barrel with an upstream portion for receiving polymer, a downstream portion and a discharge port near the downstream portion. The apparatus also includes a shaft mounted for rotational movement about a longitudinal axis within the barrel as well as drive means connected to rotate the shaft. The apparatus has a surge suppressor for urging polymer upstream toward the discharge port while permitting a portion of polymer to flow downstream into the surge suppressor. A sensor is positioned within the apparatus to detect surges in the polymer and a controller is connected to the sensor and to the drive means for adjusting shaft rotation in response to polymer surges.
REFERENCES:
patent: 3023455 (1962-03-01), Geier et al.
patent: 3148231 (1964-09-01), Spencer
patent: 3632256 (1972-01-01), Kasting et al.
patent: 3704972 (1972-12-01), Kneller et al.
patent: 3706827 (1972-12-01), Nott et al.
patent: 3787160 (1974-01-01), Leister
patent: 3797550 (1974-03-01), Latinen
patent: 3802670 (1974-04-01), Okada et al.
patent: 3856278 (1974-12-01), Eisenmann
patent: 3924841 (1975-12-01), Shinmoto
patent: 3976285 (1976-08-01), Johnson
patent: 4118163 (1978-10-01), Lee
patent: 4336213 (1982-06-01), Fox
patent: 4465451 (1984-08-01), Adderley, Jr.
patent: 4642041 (1987-02-01), Murphy
patent: 4689187 (1987-08-01), Markel et al.
patent: 4695240 (1987-09-01), Li et al.
patent: 4730935 (1988-03-01), Kolossow
patent: 4766676 (1988-08-01), Shogenji et al.
patent: 4966539 (1990-10-01), Pena
patent: 5106286 (1992-04-01), Klein
patent: 5215374 (1993-06-01), Meyer
patent: 5215764 (1993-06-01), Davis et al.
"The Dynamic Behavior of Extruders," I. Patterson et al, 1978 ANTEC, pp. 483-487.
"Development of Computer Control Strategies for Plastic Extruders", J. Parnaby et al, Polymer Engineering and Science, Aug. 1975, vol. 15, No. 8, pp. 594-605.
Miller Austin R.
Randcastle Extrusion Systems, Inc.
Thurlow Jeffery R.
LandOfFree
Extrusion surge controller and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Extrusion surge controller and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extrusion surge controller and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2035647