Patents by Inventor Harold W. Irwin

Harold W. Irwin 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).

  • Heater for electric blanket
    Patent number: 6689989
    Abstract: An electric blanket connectable to a power source is provided. The electric blanket includes first and second heating wires connected in series and a monitoring wire positioned therebetween. The monitoring wire is engageable with at least one of the heating wires in response to a predetermined temperature. The cutout interconnects the heating wires to a power source. A monitoring circuit triggers the cutout so as to disconnect the heating wires from the power source in response to engagement of the monitoring wire with one of the heating wires.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: February 10, 2004
    Inventors: Harold W. Irwin, Sr., Kin Sang Cheng, John Crawford
  • Heater for electric blanket
    Publication number: 20030173345
    Abstract: An electric blanket connectable to a power source is provided. The electric blanket includes first and second heating wires connected in series and a monitoring wire positioned therebetween. The monitoring wire is engageable with at least one of the heating wires in response to a predetermined temperature. The cutout interconnects the heating wires to a power source. A monitoring circuit triggers the cutout so as to disconnect the heating wires from the power source in response to engagement of the monitoring wire with one of the heating wires.
    Type: Application
    Filed: March 18, 2002
    Publication date: September 18, 2003
    Inventors: Harold W. Irwin, Kin Sang Cheng, John Crawford
  • Mounting arrangement for motorcycle stereo system
    Patent number: 5001779
    Abstract: A package and a method for making the package for mounting a sound system on a motorcycle, which is easily attached and detached from the motorcycle is disclosed. The components of the sound system are generally surrounded by a cushioning filler and enclosed in a housing formed of a durable flexible fabric. The package is attached to the motorcycle by the magnetic force provided by magnets mounted in the bottom of the housing.
    Type: Grant
    Filed: September 26, 1989
    Date of Patent: March 19, 1991
    Inventors: Earl W. Eggert, William T. Dooley, Harold W. Irwin