Patents by Inventor DANIEL VIRGIL SALLIS, SR.

DANIEL VIRGIL SALLIS, SR. 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).

  • Trailer steering apparatus and method
    Patent number: 10427479
    Abstract: Apparatus and methods are provided to eliminate transient swaying of a towed vehicle imparted upon the towed vehicle during a towing operation by decoupling the towing and towed vehicles rotationally from each other. In one embodiment this is accomplished through the use of a doubly hinged tow bar and to steer the towed vehicle based upon the relative angular deflections of the two vehicles while subtracting out transient rotations of the towing vehicle.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: October 1, 2019
    Inventor: Daniel Virgil Sallis, Sr.
  • TRAILER STERRING APARATUS AND METHOD
    Publication number: 20170008357
    Abstract: Apparatus and methods are provided to eliminate transient swaying of a towed vehicle imparted upon the towed vehicle during a towing operation by decoupling the towing and towed vehicles rotationally from each other. In one embodiment this is accomplished through the use of a doubly hinged tow bar and to steer the towed vehicle based upon the relative angular deflections of the two vehicles while subtracting out transient rotations of the towing vehicle.
    Type: Application
    Filed: January 28, 2015
    Publication date: January 12, 2017
    Inventor: Daniel Virgil SALLIS, SR.
  • Trailer steering apparatus and method
    Patent number: 9370977
    Abstract: Apparatus and methods are provided to eliminate transient swaying of a towed vehicle imparted upon the towed vehicle during a towing operation by decoupling the towing and towed vehicles rotationally from each other. In one embodiment this is accomplished through the use of a doubly hinged tow bar and to steer the towed vehicle based upon the relative angular deflections of the two vehicles while subtracting out transient rotations of the towing vehicle.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: June 21, 2016
    Inventor: Daniel Virgil Sallis, Sr.
  • TRAILER STEERING APPARATUS AND METHOD
    Publication number: 20150210131
    Abstract: Apparatus and methods are provided to eliminate transient swaying of a towed vehicle imparted upon the towed vehicle during a towing operation by decoupling the towing and towed vehicles rotationally from each other. In one embodiment this is accomplished through the use of a doubly hinged tow bar and to steer the towed vehicle based upon the relative angular deflections of the two vehicles while subtracting out transient rotations of the towing vehicle.
    Type: Application
    Filed: January 27, 2015
    Publication date: July 30, 2015
    Inventor: DANIEL VIRGIL SALLIS, SR.