Patents by Inventor Peter T. E. Gebhard, III

Peter T. E. Gebhard, III 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).

  • Dry cleaning and degreasing system
    Patent number: 5702535
    Abstract: Clothes are dry cleaned by placing the clothes in a tumbler/dryer, sealing the tumbler/dryer, applying a negative gauge pressure to the tumbler/dryer, providing solvent to the tumbler/dryer, activating the tumbler/dryer to dry clean the clothes, removing the solvent from the tumbler/dryer, and simultaneously throttling hot solvent vapor into the tumbler/dryer while removing vapor from the tumbler/dryer in order to dry the clothes.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 30, 1997
    Assignee: Gebhard-Gray Associates
    Inventors: Donald J. Gray, Peter T. E. Gebhard, III
  • Filter regeneration system
    Patent number: 5630434
    Abstract: Stripping contaminants/impurities from a filter includes subjecting the filter to a negative gauge pressure and applying superheated solvent vapor to the filter while maintaining the negative gauge pressure. The filter can be heated prior to being subjected to the negative gauge pressure. The superheated vapor may be composed of the same compounds as impurities being removed from the filter. The filter may be an activated carbon filter.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: May 20, 1997
    Inventors: Donald J. Gray, Peter T. E. Gebhard, III