Patents by Inventor Theodore C. Johnson, Sr.

Theodore C. Johnson, 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).

  • Patent number: 4534297
    Abstract: Railway maintenance vehicles are disclosed which are of the character having a frame assembly provided with drivable ground engaging tires and rail engaging flanged wheels. The frame assembly supports maintenance equipment, and the rail engaging wheels are displaceable between first and second positions relative to the frame assembly. In the first position the flanged wheels engage underlying rail members so as to support the vehicle with the ground engaging tires in suspension above ground, and in the second position the flanged wheels are elevated from the rails and the tires engage ground to support the vehicle. Heretofore, maintenance operations have been performed with the flanged wheels either in the first or second position thereof.
    Type: Grant
    Filed: December 2, 1982
    Date of Patent: August 13, 1985
    Inventor: Theodore C. Johnson, Sr.
  • Patent number: 4453875
    Abstract: A wheel supported open top receptacle such as a railway car is provided with a liner arrangement comprising a plurality of belt members arranged between the end walls of the car with the sides of adjacent ones of the belts overlapped in the direction between the end walls, and with each belt overlying the side walls and bottom wall of the car. One end of each belt member is attached to the upper end of the corresponding one of the side walls and, by upward displacement of the other end, each belt is adapted to be displaced upwardly relative to the car. Material in the car is progressively unloaded laterally outwardly of the car by sequential displacement of the belts in accordance with the pattern of overlap.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: June 12, 1984
    Inventor: Theodore C. Johnson, Sr.