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:
Nov. 02, 1976
Filed:
Oct. 29, 1975
James R Mercer, Akron, OH (US);
McDowell-Wellman Engineering Company, Cleveland, OH (US);
Abstract
Mixing means in the form of a torpedo for an injection molding machine having a plurality of alternately isolated and intersecting flow paths for repeatedly dividing and recombining material flow streams to achieve uniform properties throughout the material. The paths are formed as right and left-hand helical channels on the circumference of the torpedo body, with the helixes of one hand having a pitch different from that of the other such that the flow paths intersect in a pattern which is bilaterally asymmetrical with respect to an axial net flow direction. The nonsymmetrical arrangement is formed to provide substantially greater mixing action than that obtainable with similar symmetrical arrangements.