Patents by Inventor Francis Lanciaux

Francis Lanciaux 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: 4621438
    Abstract: An energy efficient heat pump dryer for clothes and other washables having a sealed rotatable clothes tumbling drum and means for circulating a stream of heated drying air in a substantially closed path through the tumbling drum. The drum is journaled upon a combined bearing and air seal means at each end. A heat pump is incorporated as the source of heat for the drying air, as a means for recirculating heat from the drying air exhausted from the tumbling drum, and as a means for removing entrained moisture from the exhausted drying air. The dryer is adapted to operate from a 110 volt household power supply and requires no air vent to the outside.
    Type: Grant
    Filed: January 13, 1983
    Date of Patent: November 11, 1986
    Assignee: Donald M. Thompson
    Inventor: Francis Lanciaux