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:
Sep. 19, 2000
Filed:
Jul. 21, 1999
Erich Bareth, Ummendorf, DE;
Eugen Mohr, Ummendorf, DE;
Kaltenbach & Voigt GmbH & Co., Biberach/RiB, DE;
Abstract
The invention relates to a turbine handpiece (1), in particular for medical or dental-medical purposes, having a drive shaft (2), rotatably mounted in the forward end region of the handpiece (1), with which a tool can be connected by a mounting device, whereby there is arranged on the drive shaft (2), fixed for rotation therewith, a turbine wheel (4) in a turbine chamber (5), in which a delivery line (11) for a flowing pressure medium opens at an inlet opening (11a) and from which a discharge line (12) extends at an outlet opening (12a), whereby a apparatus (22) is provided which after a switching-off of the pressure medium supply, during the running on of the turbine wheel (4), prevents a release of the pressure medium rotating in the turbine chamber (5) through the discharge line. The latter is simplified and improved in that the apparatus (22) is arranged in the region of the turbine chamber (5) and in functional operation deflects the pressure medium rotating in the turbine chamber (5) past the outlet opening (12a).