Patents by Inventor Edgar Alan Duncan

Edgar Alan Duncan 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: 7002461
    Abstract: A system designed to detect and identify fixed utility objects, such as telephone pedestals, power transformers, man-holes, anchor cables, and the like, that are hidden by heavy overgrowth of vegetation. The system provides for automatic look-ahead detection of such objects during mowing and clearing operations with heavy machinery using passive radio frequency transponder technology to both detect the immediate presence of a tagged object as well as basic identification of the type of object replying to the interrogation. The operator can be signaled audibly and/or visually when a tagged object is detected. The transmitter and antennae are mounted in the cab of a mobile machine for protection from physical damage. An integrated microprocessor performs the requisite algorithms needed to process the reply form one or more RFID (Radio Frequency Identification) tags and generate the alert signals for the operator alerts.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: February 21, 2006
    Inventors: Edgar Alan Duncan, Reed Roberts May
  • Publication number: 20040008120
    Abstract: A system designed to detect and identify fixed utility objects, such as telephone pedestals, power transformers, man-holes, anchor cables, and the like, that are hidden by heavy overgrowth of vegetation. The system provides for automatic look-ahead detection of such objects during mowing and clearing operations with heavy machinery using passive radio frequency transponder technology to both detect the immediate presence of a tagged object as well as basic identification of the type of object replying to the interrogation. The operator can be signaled audibly and/or visually when a tagged object is detected. The transmitter and antennae are mounted in the cab of a mobile machine for protection from physical damage. An integrated microprocessor performs the requisite algorithms needed to process the reply form one or more RFID (Radio Frequency Identification) tags and generate the alert signals for the operator alerts.
    Type: Application
    Filed: July 10, 2003
    Publication date: January 15, 2004
    Inventors: Edgar Alan Duncan, Reed Roberts May
  • Patent number: 6621417
    Abstract: A system designed to detect and identify fixed utility objects, such as telephone pedestals, power transformers, man-holes, anchor cables, and the like, that are hidden by heavy overgrowth of vegetation. The system provides for automatic look-ahead detection of such objects during mowing and clearing operations with heavy machinery using passive radio frequency transponder technology to both detect the immediate presence of a tagged object as well as basic identification of the type of object replying to the interrogation. The operator can be signaled audibly and/or visually when a tagged object is detected. The transmitter and antennae are mounted in the cab of a mobile machine for protection from physical damage. An integrated microprocessor performs the requisite algorithms needed to process the reply form one or more RFID (Radio Frequency Identification) tags and generate the alert signals for the operator alerts.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: September 16, 2003
    Inventors: Edgar Alan Duncan, Reed Roberts May
  • Publication number: 20030151511
    Abstract: A system designed to detect and identify fixed utility objects, such as telephone pedestals, power transformers, man-holes, anchor cables, and the like, that are hidden by heavy overgrowth of vegetation. The system provides for automatic look-ahead detection of such objects during mowing and clearing operations with heavy machinery using passive radio frequency transponder technology to both detect the immediate presence of a tagged object as well as basic identification of the type of object replying to the interrogation. The operator can be signaled audibly and/or visually when a tagged object is detected. The transmitter and antennae are mounted in the cab of a mobile machine for protection from physical damage. An integrated microprocessor performs the requisite algorithms needed to process the reply form one or more RFID (Radio Frequency Identification) tags and generate the alert signals for the operator alerts.
    Type: Application
    Filed: August 9, 2001
    Publication date: August 14, 2003
    Inventors: Edgar Alan Duncan, Reed Roberts May