Patents by Inventor Steven J. Larson

Steven J. Larson 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).

  • Fan with damper
    Patent number: 8513839
    Abstract: A fan with damper includes a motor and a fan located in a duct ventilation passage. The motor is connected with the fan to drive the fan and move air or other gases through the duct. The motor has a drive shaft that slides along its length between on and off positions. A damper is also located in the passage, is operatively connected with the drive shaft such that the damper moves to an open position when the drive shaft slides to its on position and the damper moves to a closed position when the drive shaft slides to its off position.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: August 20, 2013
    Inventors: John L Larson, Steven J Larson
  • Electrically heated cigarette smoking system lighter cartridge dryer
    Patent number: 7392809
    Abstract: A dryer for a smoking device includes a heating element adapted to fit within a cigarette receiving portion of the smoking device, the heating element projecting from a base portion of the dryer. The base portion of the dryer has an interface surface on which the smoking device rests when the heating element is positioned within the cigarette receiving portion of the smoking device. At least one air passageway is provided in the base portion of the dryer to communicate between the cigarette receiving portion and surrounding ambient air when the smoking device rests on the interface surface.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: July 1, 2008
    Assignee: Philip Morris USA Inc.
    Inventors: Steven J. Larson, John M. Campbell, Robert L. Ripley