Patent · US Active

Device for dispensing a dental composition

US8814738B2 · kind B2 · utility

0Cited by

44References

17Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Jens Gramann · Bogen, DE
Manfred Harre · Landsberg am Lech, DE
Ralf Kelz · Germering, DE
Christian A. Richter · Feldafing, DE
Karin Watzek · Kaufbeuren, DE
Oezcan Doenmez · Landsberg am Lech, DE

Key dates

Filing date	Nov 17, 2010
Grant date	Aug 26, 2014
Priority date	—
Expiry date	Jan 17, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2005/3152
WIPO fieldMedical technology
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.