Patents by Inventor John P. Toepper

John P. Toepper 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).

  • Electrostatographic blender assembly and method
    Patent number: 6585406
    Abstract: The invention relates generally to development apparatus for mixing and applying developer material to a latent image on an image-bearing member in an electrostatographic reproduction machine, such as a copier or printer. More particularly, this invention relates to a blender of the type for mixing electrostatographic developer comprising a plurality of blender segments mounted on a shaft. A resilient spacer is provided, according to an aspect of the invention, wherein said resilient spacer and said plurality of blender segments are compressed between said pair of stops. Residual looseness due to tolerance stack-up is eliminated.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: July 1, 2003
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: John P. Toepper, Paul E. Thompson, Gerald M. Darby, Kenneth M. Patterson
  • Electrostatographic blender assembly and method
    Publication number: 20010046182
    Abstract: The invention relates generally to development apparatus for mixing and applying developer material to a latent image on an image-bearing member in an electrostatographic reproduction machine, such as a copier or printer. More particularly, this invention relates to a blender of the type for mixing electrostatographic developer comprising a plurality of blender segments mounted on a shaft. A resilient spacer is provided, according to an aspect of the invention, wherein said resilient spacer and said plurality of blender segments are compressed between said pair of stops. Residual looseness due to tolerance stack-up is eliminated.
    Type: Application
    Filed: May 11, 2001
    Publication date: November 29, 2001
    Inventors: John P. Toepper, Paul E. Thompson, Gerald M. Darby, Kenneth M. Patterson