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. 07, 1978
Filed:
Sep. 08, 1976
Applicant:
Inventor:
William R Meadors, Marion, IN (US);
Assignee:
Peerless Machine & Tool Corporation, Marion, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29F / ;
U.S. Cl.
CPC ...
425207 ; 4251 / ; 425557 ; 425586 ; 366 76 ; 366 77 ;
Abstract
Mixer apparatus for use with injection molding, extrusion or mixing and compounding machines wherein a melt chamber is lined with a series of stacked Belleville spring washers to provide a series of axially narrow, annular extrusion passages between the washers. A quantity of thermoplastic material is supplied to the melt chamber at the inner diameter of the washers and is therein subjected to pressure to cause extrusion of the material through the passages. From the washers, the material is directed through axially extending slots about the washers to a mold cavity or forming die.