Patents by Inventor Jan-Paul Schermuly

Jan-Paul Schermuly has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dental hand piece or angle piece with a rotating tool
    Patent number: 11448260
    Abstract: A dental hand piece or angle piece including a rotating tool, which is driven via a rotating drive element disposed in a housing, wherein the rotating drive element is mounted in the housing by a radial rolling bearing, wherein the rolling bearing comprises an axial abutment surface and the housing comprises an axial countersurface, and wherein the rolling bearing is axially preloaded with respect to the housing by a spring element 11 and has a coefficient of friction for the static friction of the abutment surface to the countersurface or the abutment surface and the countersurface to the spring element that is at least 0.16 in the lubricated state and at least 0.25 in the unlubricated state.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: September 20, 2022
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Metin Ertugrul, Matthias Rein, Jan-Paul Schermuly, Ralf Sutter