Patents by Inventor Linard H. Miller

Linard H. Miller 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).

  • Failed filter arrest indicator and method for use in multiple arrester location
    Patent number: 7423545
    Abstract: The present invention is a technique for locating and identifying a failed filter/arrester in an underground conveyance such as a fiber optic cable. A sensor is installed in the filter/arrester housing to sense grounding of a cable locating frequency. The sensor will monitor the cable locating signal that is normally on the cable and blocked by the filter arrester to ground. A small radio frequency oscillator (85 to 88 Hz), also installed inside the filter housing, is activated by the sensor. The RF signal is detected above ground with standard cable locating equipment. A warning indicator such as an indicator light may also be installed on the outside of the filter housing. The indicator is also activated by the sensor. In that way, the particular failed filter can be identified if multiple filters are installed at that location. The power that will be required to operate the RF transmitter and indicator will be obtained from the voltage passing through the cable.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: September 9, 2008
    Assignee: AT&T Corp.
    Inventors: Connie H. Barnes, John K. Boland, II, Hossein Eslambolchi, John Sinclair Huffman, Linard H. Miller, Randall G. Scholz
  • Failed filter arrest indicator and method for use in multiple arrester location
    Patent number: 6998994
    Abstract: The present invention is a technique for locating and identifying a failed filter/arrester in an underground conveyance such as a fiber optic cable. A sensor is installed in the filter/arrester housing to sense grounding of a cable locating frequency. The sensor will monitor the cable locating signal that is normally on the cable and blocked by the filter arrester to ground. A small radio frequency oscillator (85 to 88 Hz), also installed inside the filter housing, is activated by the sensor. The RF signal is detected above ground with standard cable locating equipment. A warning indicator such as an indicator light may also be installed on the outside of the filter housing. The indicator is also activated by the sensor. In that way, the particular failed filter can be identified if multiple filters are installed at that location. The power that will be required to operate the RF transmitter and indicator will be obtained from the voltage passing through the cable.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: February 14, 2006
    Assignee: AT&T Corp.
    Inventors: Connie H. Barnes, John K Boland, II, Hossein Eslambolchi, John Sinclair Huffman, Linard H. Miller, Randall G. Scholz
  • Failed filter arrest indicator and method for use in multiple arrester location
    Publication number: 20040075556
    Abstract: The present invention is a technique for locating and identifying a failed filter/arrester in an underground conveyance such as a fiber optic cable. A sensor is installed in the filter/arrester housing to sense grounding of a cable locating frequency. The sensor will monitor the cable locating signal that is normally on the cable and blocked by the filter arrester to ground. A small radio frequency oscillator (85 to 88 Hz), also installed inside the filter housing, is activated by the sensor. The RF signal is detected above ground with standard cable locating equipment. A warning indicator such as an indicator light may also be installed on the outside of the filter housing. The indicator is also activated by the sensor. In that way, the particular failed filter can be identified if multiple filters are installed at that location. The power that will be required to operate the RF transmitter and indicator will be obtained from the voltage passing through the cable.
    Type: Application
    Filed: October 18, 2002
    Publication date: April 22, 2004
    Inventors: Connie H. Barnes, John K. Boland, Hossein Eslambolchi, John Sinclair Huffman, Linard H. Miller, Randall G. Scholz