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. 08, 2000
Filed:
Oct. 25, 1999
Applicant:
Inventor:
Takasuke Nakanishi, Kanuma, JP;
Assignee:
Nakanishi, Inc., Tochihi-Ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C / ;
U.S. Cl.
CPC ...
433115 ;
Abstract
A dental handpiece is disclosed which has a housing having a wall, a bur sleeve for receiving and holding a dental tool therein, a bearing for rotatably supporting the bur sleeve, a rotary dust control member fixed on the bur sleeve, and a stationary dust control member forming a gap in cooperation with the rotary dust control member and the wall of the housing for preventing entry of contaminants inside the housing. The stationary dust control member is attached to the bearing.