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.

Date of Patent:
Jun. 12, 2007

Filed:

Nov. 26, 2001
Applicants:

Michael Keller, Gauting, DE;

Helmut Pauser, Diessen, DE;

Martin Hartung, München, DE;

Inventors:

Michael Keller, Gauting, DE;

Helmut Pauser, Diessen, DE;

Martin Hartung, München, DE;

Assignee:

3M ESPE AG, Seefeld, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A device is provided having a housing with a housing wall consisting of a non-transparent plastic with an outer surface and an inner surface; and an operating mode display unit with at least one light-emitting element which is/are located inside the housing, underneath the inner surface of the housing wall. The housing wall has at least one recess in the area of the light-emitting element and the light intensity of the at least one light-emitting element is adjusted in such a way that in its light-emitting mode, said at least one light-emitting element is only optically perceptible in a localizable manner through the housing wall in this area.


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