Patents by Inventor Serena Hum

Serena Hum 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).

  • Clothes dryer
    Patent number: 6874250
    Abstract: A clothes dryer has a first four pole motor that rotates a rotatable drum in the dryer through a transmission system. The clothes dryer has a second two pole self speed regulated induction motor connected to a blower fan in the air passageway of the dryer. The second motor rotates the fan to draw air out of the dryer and exhaust the air to an external vent. The second motor provides a long venting application and has a slip characteristic whereby the speed of the second motor automatically varies directly proportional to air flow restrictions associated with the external vent.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: April 5, 2005
    Assignee: Camco Inc.
    Inventors: Silvia Prajescu, Serena Hum
  • CLOTHES DRYER
    Publication number: 20050016015
    Abstract: A clothes dryer has a first four pole motor that rotates a rotatable drum in the dryer through a transmission system. The clothes dryer has a second two pole self speed regulated induction motor connected to a blower fan in the air passageway of the dryer. The second motor rotates the fan to draw air out of the dryer and exhaust the air to an external vent. The second motor provides a long venting application and has a slip characteristic whereby the speed of the second motor automatically varies directly proportional to air flow restrictions associated with the external vent.
    Type: Application
    Filed: July 25, 2003
    Publication date: January 27, 2005
    Applicant: Camco Inc.
    Inventors: Silvia Prajescu, Serena Hum