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:
Jul. 14, 1981
Filed:
Sep. 07, 1979
Bernhard Lingenhole, Biberach, DE;
Ernst Strohmaier, Bad Schussenried, DE;
Abstract
A compressed-air dental motor includes a housing, a rotor, a compressed air inlet conduit supplying compressed air for placing the rotor into rotation, and a rotor shaft in the rotor connectable with a work tool, such as a drill. A valve member in the housing associated with the compressed-air inlet conduit is adapted to vary the inlet of compressed air for each unit of time, and an adjusting device is provided for controlling the valve member. The rotor shaft includes an axially displaceable component for controlling the valve member in direct mechanical dependence upon the torque at the work tool so as to form the adjusting device into a torque-dependent adjusting device.