The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 2012
Filed:
Oct. 12, 2009
Applicants:
Harald Sikora, Bremen, DE;
Torben Clausen, Weyhe, DE;
Inventors:
Harald Sikora, Bremen, DE;
Torben Clausen, Weyhe, DE;
Assignee:
Sikora AG, Bremen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 45/77 (2006.01); B29C 45/78 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus for the measurement of the temperature of a plastified plastic material at the exit of an extruder, characterised in that the function of the sound, velocity in dependence of the temperature is measured and memorised for at least one plastified plastic material, the sound velocity is measured during the extrusion of the plastic material, and the respective temperature is determined from the velocity measurement values and the function.