Patents by Inventor David C. Newson

David C. Newson 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).

  • Patent number: 4141314
    Abstract: A developing apparatus for use in a photocopying system includes a rotatably mounted application roller, means for dispensing developer material onto the surface of the roller, a metering blade mounted for engagement with the surface of the roller for wiping the surface of the application roller to leave it lightly wetted with developer, and a pressure application means to apply pressure to a copy paper as it passes in contact with the surface of the roller. The pressure application means is preferably in the form of a curved pad which applies pressure over a substantial area of the application roller and remains in contact with the application roller even when the roller is stationary.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: February 27, 1979
    Assignee: GAF Corporation
    Inventor: David C. Newson