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:
Aug. 26, 2014
Filed:
Nov. 17, 2010
Jens Gramann, Gräfelfing, DE;
Manfred Harre, Landsberg am Lech, DE;
Ralf Kelz, Seefeld, DE;
Christian A. Richter, Feldafing, DE;
Karin Watzek, Kaufbeuren, DE;
Oezcan Doenmez, Landsberg am Lech, DE;
Jens Gramann, Gräfelfing, DE;
Manfred Harre, Landsberg am Lech, DE;
Ralf Kelz, Seefeld, DE;
Christian A. Richter, Feldafing, DE;
Karin Watzek, Kaufbeuren, DE;
Oezcan Doenmez, Landsberg am Lech, DE;
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A device for dispensing a dental composition comprises a piston for extruding a component of the dental composition from a container. The device has a roller drive for displacing the first piston. The roller drive comprises cooperating first and second rollers, and each of the rollers have a roller surface with a radial rib profile. The rollers are arranged for rolling with their roller surfaces on one another. The invention may help providing for a relatively reliable and compact device.