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:
Jan. 25, 1994
Filed:
Aug. 13, 1992
Applicant:
Inventor:
Otto Rosenstatter, Seeham, AT;
Assignee:
Imtec Innovative Medizintechnik Gesellschaft m.b.H., Hallein, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C / ;
U.S. Cl.
CPC ...
433105 ;
Abstract
A dental handpiece includes a drive shaft which is driven by a drive motor and which has two coaxial ring gears which can selectively be coupled to shafts passing through different tool carriers. Different angular speeds of the coaxial ring gears is achieved by the inner ring gear being directly connected to the drive shaft, whereas the outer ring gear is driven by the drive shaft by way of a planetary transmission.