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:
Apr. 28, 1987
Filed:
Feb. 10, 1986
Ernst Strohmaier, Schussenried, DE;
Kaltenbach & Voigt GmbH & Co., Biberach/Riss, DE;
Abstract
A dental handpiece with a built-in electric motor for the drive of a dental treating implement which is arranged at one end of the handpiece. The implement is suppliable with a cooling medium through a cooling medium conduit in the handpiece; whereby the handpiece is detachably connectable with a current provider at its end which is distant from the implement, in which the current provider possesses electrical current supply contacts which are supplied with electrical current and which, upon the connection of the current provider with the handpiece, come into contact with current commutator or receiving contacts of the electric motor. The handpiece can be selectively supply-main or battery powered; in essence, unrestrictedly operated whereby, as a consequence of the cooling medium conduit which is fixed on the handpiece and the cooling medium supply conduit which is fixed on the at least one electrical current supply past, this automatically assures a concurrent secure and rapid separation and connection of the cooling medium conduit and cooling medium supply conduit upon the separation and connection of the handpiece and the current provider.