Patents by Inventor Gordon S. Carlson

Gordon S. Carlson 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).

  • Protective circuit for portable electric appliances
    Patent number: 4550358
    Abstract: A non-resettable water actuated circuit interrupting means for use with a portable electric appliance such as a hair dryer to provide protection for the user against injury in the event that the appliance is accidentally dropped in water or otherwise develops leakage current. Both sides of the line are fused and circuit means are provided which respond to leakage current in the appliance to provide separate circuits to blow out each of the fuses.
    Type: Grant
    Filed: February 13, 1984
    Date of Patent: October 29, 1985
    Assignee: Sunbeam Corporation
    Inventors: George C. Crowley, Gordon S. Carlson, Michael Woznicki
  • Electric blanket safety circuit
    Patent number: 4436986
    Abstract: A safety circuit for deenergizing an electric blanket of the type utilizing a positive coefficient resistance material as the heating element positioned between a pair of spaced conductor wires. The circuit includes one or more gas tubes with parallel resistances connected across the conductor wires to sense voltage changes caused by open or short circuits and to conduct sufficiently high currents to blow a series connected fuse.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: March 13, 1984
    Assignee: Sunbeam Corporation
    Inventor: Gordon S. Carlson