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:
Oct. 27, 1981
Filed:
Jun. 11, 1979
Applicant:
Inventor:
Klaus Schroder, Marienheide, DE;
Assignee:
Firma C. & W. Berges Maschinenfabrik, Marienheide, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B / ; B29B / ;
U.S. Cl.
CPC ...
366 77 ; 366 79 ; 366189 ; 366194 ; 425558 ;
Abstract
An extruder for the preplasticization of thermoset molding resins is disclosed. The extrusion machine includes a screw that rotates in a heated cylinder and compresses the fed-in pulverulent thermoset resinous material against a predetermined ramming pressure until it is plasticized. At the discharge end of the screw cylinder a receiving cylinder is disposed which has a hydraulic discharge piston which continuously retracts when an adjustable pressure head has been exceeded.
Schroder, Klaus. (1981). Extruder for preplasticization of thermoset molding materials (U.S. Patent No. 4297036). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4297036
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile