Patents by Inventor Reinhold H. Epping

Reinhold H. Epping 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).

  • Method and apparatus for determining electrical charge characteristics of toner materials
    Patent number: 5266900
    Abstract: The electrostatic quality of toner material is measured by introducing the toner material into a measuring cell so that it flows through an opening in the measuring cell into a receiving chamber that is substantially free of gas flows and collects on a charged electrode disposed within the receiving chamber. The quantity of toner material collected on the electrode is utilized as an index of the quality of the toner material with respect to its electrostatic charge capability. In addition, the dispersal profile of the toner material collected on the electrode may be utilized for analytic purposes.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: November 30, 1993
    Assignee: Epping GmbH
    Inventor: Reinhold H. Epping