Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting
Patent
1992-12-24
1994-02-22
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
264 403, 264 406, 264 407, 264564, 425140, 425141, 425144, 4253261, B29C 4792
Patent
active
052884414
ABSTRACT:
A system for monitoring and controlling the output of extruder apparatus for producing a blown synthetic resin film. An infrared imaging system provides for measuring the temperature of the blown film simultaneously at multiple points on the film between the blowing head and the frost line of the film bubble. The multi-dimensional temperature profile measured by an infrared camera is processed in a computer controller in order to provide control inputs to various components of the extruder apparatus. The extruder apparatus is controlled so as to maintain a desired temperature profile substantially at that which is known to provide a high quality end product.
REFERENCES:
patent: 3459841 (1969-08-01), Seiler
patent: 4101614 (1978-07-01), Havens
patent: 4189288 (1980-02-01), Halter
patent: 4246212 (1981-01-01), Upmeier
patent: 4325897 (1982-04-01), Zerle et al.
patent: 4355966 (1982-10-01), Sweeney et al.
patent: 4402656 (1983-09-01), Schott, Jr.
patent: 4551289 (1985-11-01), Schwab et al.
patent: 4606879 (1986-08-01), Cerisano
patent: 4684487 (1987-08-01), Gawrisch
patent: 4711747 (1987-12-01), Halter
patent: 4808359 (1989-02-01), van der Molen
patent: 4832897 (1989-05-01), van der Molen
patent: 5096634 (1992-03-01), Tsadares et al.
patent: 5124094 (1992-06-01), Lenius et al.
patent: 5128076 (1992-07-01), Akselrod et al.
LandOfFree
System and method for extruder frost line detection does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for extruder frost line detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for extruder frost line detection will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-169068