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:
Jan. 22, 1980
Filed:
Jul. 27, 1978
Applicant:
Inventor:
Henry Ellwood, Rochdale, GB;
Assignee:
USM Corporation, Farmington, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
B01F / ; B29B / ;
U.S. Cl.
CPC ...
366 91 ; 366300 ;
Abstract
A high intensity internal mixer for plasticizing material, having a mixing chamber comprising a plurality of interconnected mixing bores. Each bore contains a rotor for mixing material therewithin. Each rotor has at least one blade or wing with a sharp edge on its outer extremity adjacent the leading edge of the wing. The sharp edge is formed by a groove being cut along the extremity of the leading edge of the wing of the rotor blade. Each blade has a slight helical twist, and is configured to provide efficient material breakup.