Patents by Inventor Christa Keith

Christa Keith 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: 9238512
    Abstract: A portable passenger boarding ramp assembly includes a main chassis having a plurality of drive wheels; a ramp structure carried by the main chassis, the ramp structure including a lower ramp sloping upwardly to the main chassis; a lower turndeck carried by the main chassis at an upper end of the lower ramp; a mid ramp carried by the main chassis, the mid ramp sloping upwardly from the lower turndeck; an upper turndeck carried by the main chassis at an upper end of the mid ramp; an upper ramp carried by the main chassis, the upper ramp sloping upwardly from the upper turndeck; and a level deck carried by the main chassis and disposed in vertically pivoting relationship to the upper ramp; and a drive system drivingly engaging the plurality of drive wheels.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: January 19, 2016
    Inventors: William Floyd Keith, Christa Keith
  • Patent number: 8863341
    Abstract: A ramp assembly for deplaning passengers from and boarding passengers on an airplane includes a level deck having a front deck edge, at least one bridge connector assembly carried by the level deck at the front deck edge and at least one floating upper bridge carried by the at least one bridge connector assembly. The at least one bridge connector assembly facilitates horizontal pivoting movement, vertical pivoting movement and side-to-side movement of the at least one floating upper bridge relative to the level deck. A passenger deplaning and boarding method is also disclosed.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: October 21, 2014
    Inventors: William Floyd Keith, Christa Keith
  • Patent number: 8806690
    Abstract: A ramp assembly for deplaning passengers from and boarding passengers on an airplane includes a level deck, at least one bridge connector assembly carried by the level deck and at least one floating upper bridge carried by the at least one bridge connector assembly. The at least one bridge connector assembly facilitates horizontal pivoting movement, vertical pivoting movement and side-to-side movement of the at least one floating upper bridge relative to the level deck. A passenger deplaning and boarding method is also disclosed.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: August 19, 2014
    Inventors: William Floyd Keith, Christa Keith