Patents by Inventor Laura M. Gilbert

Laura M. Gilbert 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: 5053825
    Abstract: This invention relates to an toner cartridge to dispense toner to a developing system in a photocopying device. The cartridge has a primary baffle thereby forming a main chamber and a dispensing chamber. The dispensing chamber is divided into a primary dispensing chamber and a secondary dispensing chamber by a secondary baffle. Apertures are formed in the container adjacent to the secondary dispensing baffle. The cartridge is designed to be rotated in one direction to fill the secondary dispensing chamber with toner, and then rotated in an opposite direction to dispense the toner from the secondary dispensing chamber through the apertures.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: October 1, 1991
    Assignee: Imagitek, Inc.
    Inventors: John W. Trainor, Bruce E. Holtje, Laura M. Gilbert
  • Patent number: 4922304
    Abstract: A fuser belt for a reproduction machine is disclosed. The belt may have one of several configurations which all include ridges and interstices on the outer surface which contacts the print media. These interstices are formed between regularly spaced ridges, between randomly spaced particles, between knit threads. These interstices allow the free escape of steam from the media during high-temperature fusing of the reproduction process. As the steam escapes freely, the steam does not accumulate in the media causing media deformations and copy quality deterioration. Additionally, media handling is improved because the ridges and interstices reduce the unwanted but unavoidable introduction of thermal energy into the copy media.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: May 1, 1990
    Assignee: Imagitek
    Inventors: Laura M. Gilbert, David Vermaat