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:
Mar. 09, 1976
Filed:
Feb. 28, 1975
Nickolas N Sokolow, Cheshire, MA (US);
Beloit Corporation, Beloit, WI (US);
Abstract
Redistributive mixing is effected in an extruder wherein the extruder screw advances thermoplastic material toward and through transfer grooves in a corotative torpedo. The torpedo grooves progressively diminish in cross sectional flow area from inlet ends at the upstream end of the torpedo toward downstream ends running out adjacent to the torpedo tip. Feeder grooves in a complementary passage wall of a stationary discharge head adapter in which the torpedo operates, receive the thermoplastic material transferred and propelled with redistributive mixing action from the torpedo grooves. The passage wall grooves have upstream entry ends aligned with the upstream ends of the torpedo grooves and extend therefrom in progressively increasing cross sectional flow area to downstream ends feeding toward an outlet.