Patents by Inventor Christopher Gander

Christopher Gander 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).

  • System and method for proximity detection
    Patent number: 8289170
    Abstract: A system and method for detecting a proximity of a person to a machine includes a first transmitter unit carried by the person, a plurality of receiver units located on the machine at know locations, and a processing unit including data defining a first boundary around the machine. The first transmitter unit transmits a magnetic proximity signal having a predetermined signal strength and a predetermined signal frequency. Each of the plurality of receiver units is for determining a received signal strength of the received magnetic proximity signal. The processing unit: determines a location of the first transmitter unit relative to the machine based on the received signal strength of the magnetic proximity signal and the known location of the plurality of receiver units; and outputs a proximity warning signal if the location of the transmitter relative to the machine is within the first boundary around the machine.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: October 16, 2012
    Assignee: Alliance Coal, LLC
    Inventors: Aric Pryor, Mark Watson, Mike E. Ciholas, Justin E. Bennett, Paul R. Blaylock, Christopher J. Elpers, Evan M. Buchanan, Christopher Gander, Timothy M. DeBaillie
  • SYSTEM AND METHOD FOR PROXIMITY DETECTION
    Publication number: 20090267787
    Abstract: A system and method for detecting a proximity of a person to a machine includes a first transmitter unit carried by the person, a plurality of receiver units located on the machine at know locations, and a processing unit including data defining a first boundary around the machine. The first transmitter unit transmits a magnetic proximity signal having a predetermined signal strength and a predetermined signal frequency. Each of the plurality of receiver units is for determining a received signal strength of the received magnetic proximity signal. The processing unit: determines a location of the first transmitter unit relative to the machine based on the received signal strength of the magnetic proximity signal and the known location of the plurality of receiver units; and outputs a proximity warning signal if the location of the transmitter relative to the machine is within the first boundary around the machine.
    Type: Application
    Filed: April 29, 2009
    Publication date: October 29, 2009
    Applicant: Alliance Coal, LLC
    Inventors: Aric Pryor, Mark Watson, Mike E. Ciholas, Justin E. Bennett, Paul R. Blaylock, Christopher J. Elpers, Evan M. Buchanan, Christopher Gander, Timothy M. DeBaillie