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Process and device for the measurement of a physical quantity of an extruded element

  • US 4,416,541 A
  • Filed: 04/30/1981
  • Issued: 11/22/1983
  • Est. Priority Date: 05/08/1980
  • Status: Expired due to Term
First Claim
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1. Process for automatic control of a physical quantity of an extruded element issueing from an extruder in a hot condition and cooling down gradually as it moves away from said extruder to reach a cooled condition, by means of a first and a second regulating loop in which said first regulating loop comprises the measurement of said quantity carried out on said element in the hot condition in the close vicinity of an exit of said extruder for quickly regulating and correcting variations from a first reference value and said second regulating loop comprises the measurement of said quantity carried out on said element in the cooled condition for providing an auxiliary regulation of said quantity with respect to a second reference value of said element in the cooled condition.

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