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. 05, 2016
Filed:
Jun. 21, 2011
Jens Gramann, Grafelfing, DE;
Korbinian Schepke-gerlach, Gauting, DE;
Jens Gramann, Grafelfing, DE;
Korbinian Schepke-Gerlach, Gauting, DE;
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
A mixer () for preparing a dental material comprises a mixing barrel () and a mixing rotor (), a mixer inlet (), and an outlet (). The mixing rotor is rotatable about a rotation axis (A), and comprises four mixing paddle levels () each comprising at least one mixing paddle. The mixing paddle levels are axially disposed over a portion of the mixing rotor with the paddle levels being axially spaced at a generally uniform paddle spacing. The mixing paddles further have a thickness in the dimension parallel to the rotation axis, and the ratio between the paddle spacing and the paddle thickness is at least 2:1, thereby maximizing the mixing efficiency, and minimizing energy consumption.