Patents by Inventor Donald Bruce Karner

Donald Bruce Karner 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).

  • Apparatus and method for managing power to an airport passenger bridge and a battery charger
    Patent number: 7573228
    Abstract: An apparatus for managing input power between a passenger bridge and a battery charger includes a power distributor, a current monitor and a controller. The power distributor receives input power and outputs power to the passenger bridge and the battery charger. The current monitor measures current drawn by the passenger bridge and the battery charger to provide a signal to the controller indicative of the power consumption of the passenger bridge and the battery charger. The controller adjusts the output power setting of the battery charger in response to the power consumption of the passenger bridge and the battery charger by reading the output power of the battery charger, comparing the power consumption of the passenger bridge and the battery charger to a predetermined operating threshold to determine whether an overthreshold condition exists, and modulating the battery charger output power setting in response to the overthreshold condition.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: August 11, 2009
    Assignee: Electric Transportation Engineering Corporation
    Inventors: Donald Bruce Karner, Kevin Patrick Morrow