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:
Jun. 14, 1983
Filed:
Sep. 16, 1981
Applicant:
Inventors:
Reuben Klein, Edison, NJ (US);
Imrich Klein, Highland Park, NJ (US);
Assignee:
Scientific Process & Research, Inc., Somerset, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29B / ;
U.S. Cl.
CPC ...
366 79 ; 366295 ; 366318 ; 425208 ;
Abstract
A plasticating extruder in which the screw conveyor includes an inner backfeed passage communicating with the channel established by the main flight of the screw conveyor and a solids-directing flight for directing unplasticated material into the backfeed passage and segregating already-plasticated material from the unplasticated material in the channel.