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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.:

US 10736713 B1

PDFFull Text
Date of Patent:
Aug. 11, 2020

Filed:

Jun. 22, 2018

Dental handpiece having a rolling bearing

Applicant:

Dentsply Sirona Inc., York, PA (US);

Inventors:

Thomas Bierbaum, Bensheim, DE;

Matthias Rein, Lorsch, DE;

Ralf Sutter, Weinheim, DE;

Siegfried Goisser, Einhausen, DE;

Assignee:

DENTSPLY SIRONA INC., York, PA (US);

Attorney:

Dentsply Sirona Inc.

Primary Examiner:

Heidi M Eide

Int. Cl.
CPC ...
A61C 1/18 (2006.01); F16C 33/58 (2006.01); F16C 33/76 (2006.01); F16C 25/08 (2006.01); F16C 33/78 (2006.01); F16C 37/00 (2006.01); F16C 35/04 (2006.01); F16C 19/06 (2006.01); F16C 19/54 (2006.01); A61C 1/08 (2006.01); A61C 1/00 (2006.01); A61C 1/05 (2006.01);
U.S. Cl.
CPC ...
A61C 1/181 (2013.01); F16C 25/083 (2013.01); F16C 33/581 (2013.01); F16C 33/583 (2013.01); F16C 33/586 (2013.01); F16C 33/767 (2013.01); F16C 33/784 (2013.01); F16C 35/042 (2013.01); F16C 37/007 (2013.01); A61C 1/0061 (2013.01); A61C 1/052 (2013.01); A61C 1/088 (2013.01); F16C 19/06 (2013.01); F16C 19/547 (2013.01); F16C 33/768 (2013.01); F16C 2316/13 (2013.01);
Abstract

A dental handpiece () having a drive () of a tool (), which drive is located in a head housing (), has at least one media-conducting line arranged in the head housing, which media-conducting line has an outlet opening to the tool, and a tool receptacle () arranged in a drive chamber, which tool receptacle is rotatably supported by means of a rolling bearing () in a support () of the head housing () on a side of the drive chamber facing the tool. The rolling bearing has an outer race (), which is supported against the head housing () radially in the support () in the area of a raceway () and which has a sub-area (), the outside diameter Dof which is reduced compared to the outside diameter Din the area of the raceway (). The head housing has a housing projection (), which extends into the area of the reduced outside diameter D, and the media-conducting line () runs at least partially through said housing projection ().

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