Patents by Inventor William Lee Foster

William Lee Foster 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: 9728067
    Abstract: A method for providing an alert to a person to unplug an electrical power cord of an electrical device or equipment includes an alarm device that is activated upon separation of a first portion from a second portion. The first and second portions of the alarm device are secured proximate opposite sides of a loop provided in the power cord. The first and second portions, when engaged, maintain a switch of an electrical circuit in an open position. If the equipment is moved prior to unplugging the power cord, the loop will be straightened, causing the first and second portions to separate. The switch closes, completing the electrical circuit and activating the alarm device. The alarm alerts the person to unplug the power cord. A first alternate method includes the alarm device as a part of newly manufactured equipment. A second alternate method includes a motion detector or sensor in the alarm device of the newly manufactured equipment.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: August 8, 2017
    Inventor: William Lee Foster
  • Publication number: 20140191877
    Abstract: A method for providing an alert to a person to unplug an electrical power cord of an electrical device or equipment includes an alarm device that is activated upon separation of a first portion from a second portion. The first and second portions of the alarm device are secured proximate opposite sides of a loop provided in the power cord. The first and second portions, when engaged, maintain a switch of an electrical circuit in an open position. If the equipment is moved prior to unplugging the power cord, the loop will be straightened, causing the first and second portions to separate. The switch closes, completing the electrical circuit and activating the alarm device. The alarm alerts the person to unplug the power cord. A first alternate method includes the alarm device as a part of newly manufactured equipment. A second alternate method includes a motion detector or sensor in the alarm device of the newly manufactured equipment.
    Type: Application
    Filed: March 4, 2014
    Publication date: July 10, 2014
    Inventor: William Lee Foster
  • Patent number: 8710988
    Abstract: A method for providing an alert to a person to unplug an electrical power cord of an electrical device or equipment includes an alarm device that is activated upon separation of a first portion from a second portion. The first and second portions of the alarm device are secured proximate opposite sides of a loop provided in the power cord. The first and second portions, when engaged, maintain a switch of an electrical circuit in an open position. If the equipment is moved prior to unplugging the power cord, the loop will be straightened, causing the first and second portions to separate. The switch closes, completing the electrical circuit and activating the alarm device. The alarm alerts the person to unplug the power cord. A first alternate method includes the alarm device as a part of newly manufactured equipment. A second alternate method includes a motion detector or sensor in the alarm device of the newly manufactured equipment.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: April 29, 2014
    Inventor: William Lee Foster
  • Publication number: 20010054366
    Abstract: A method of providing safety for pyrotechnic launch devices of the type having a least one tilt detection device 10 & 20. Having a means of attaching said tilt detection device(s) 10 & 20 to the launch device(s). Having a means of disabling launches from launch device(s) when at least one of said tilt detection device(s) 10 & 20 detects that the launch device it is attached to is tilted beyond tolerances.
    Type: Application
    Filed: February 2, 2001
    Publication date: December 27, 2001
    Inventors: Charles Roger Hutchins, William Lee Foster