Patent · US Active

Device for dispensing a dental material

US8613376B2 · kind B2 · utility

0Cited by

15References

13Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Jens Gramann · Bogen, DE
Ralf Kelz · Germering, DE

Key dates

Filing date	Aug 23, 2010
Grant date	Dec 24, 2013
Priority date	—
Expiry date	Aug 23, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB05C17/00556
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A device for dispensing a dental material comprises a plunger for extruding a component of the dental material, and a motor for driving the plunger. The device has two electric circuits for powering the motor to drive the plunger forward or backward. A selector switch is arranged in the device for alternately selecting between the first electric circuit and the second electric circuit for powering the motor. The device further has switches for interrupting the first and/or second electric circuits when the plunger is positioned at certain positions. The device provides automatic functionality for facilitating dispensing of dental materials, and further is preferably relatively robust and relatively inexpensive to manufacture.

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