Patents by Inventor Richard Gramlow

Richard Gramlow 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: 9873300
    Abstract: A hitch apparatus for laterally shifting a hitch point of a trailer when towed behind a towing vehicle to effectively adjust an alignment of a longitudinal axis of the trailer with respect to a longitudinal axis of the towing vehicle. The hitch apparatus may comprise a pivot frame including a forward portion configured for attachment to a towing vehicle, a rearward portion configured for attachment to the trailer, and a central portion pivotally connecting the forward and rearward portions together. At least one actuator may be connected to at least two portions of the pivot frame to pivot the portions with respect to each other. Actuation of the actuator may move the forward portion of the pivot frame between shifted left condition and a shifted right condition with respect to the rearward portion and a trailer when the rearward portion is mounted on a trailer.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: January 23, 2018
    Inventor: Richard Gramlow
  • Patent number: 8931573
    Abstract: A toolbar implement connects to a tractor and a plurality of row units are connected to the toolbar implement. The toolbar implement contains: (a) a main longitudinal frame; (b) a transverse left wing toolbar hingedly connected to the frame; (c) a transverse center bar connected to the frame; (d) a transverse right wing toolbar hingedly connected to the frame; (e) a plurality of lift arms connected to the center bar; (f) an axle connected to the distal ends of the lift arms; (g) a plurality of track assemblies mounted on the axle; (h) a left longitudinal frame member connected to the center bar and extending rearwardly; (i) a right longitudinal frame member connected to the center bar and extending rearwardly; and (j) a transverse center toolbar connected to the main frame, the left longitudinal frame member, and the right longitudinal frame member.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: January 13, 2015
    Inventor: Richard A. Gramlow