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:
May. 07, 1985
Filed:
Mar. 21, 1983
Gerd Lohn, Biberach, DE;
Abstract
There is disclosed a dental handpiece which comprises a holder sleeve adapted to mount at one end a dental implement, a motor unit arranged in the sleeve, a power supply module releasably coupled to an opposite end of the sleeve and arranged to provide power to operate the motor unit, and a drive train extending within the sleeve from the motor unit to the dental-implement end of the sleeve to enable the motor unit to operate the dental implement. Fluid media supply lines are arranged inside the sleeve, but pass round the outside of the motor unit, and extend towards the implement-end of the sleeve in order to supply fluid media to the treatment region adjacent to the implement. The housing of the motor unit has a longitudinal groove in which the fluid media supply lines are taken, to achieve necessary guiding of the supply lines. The power supply module and the handpiece sleeve are freely rotatable relative to each other, when they are coupled together, by virtue of a guide pin and socket arrangement. The socket is provided by a coupling interpiece, and advantageously the coupling interpiece and the motor unit are interchangeably mounted in the handpiece. Desirably, the handpiece sleeve is transversely divided into two sleeve portions, and can receive a selected one of different interchangeable gear units.