Patents by Inventor James L. Dunaway

James L. Dunaway 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: 4444345
    Abstract: An apparatus for simultaneously removing and in situ severing of rails from a rail bed to produce a plurality of rail sections of predetermined lengths including a sled frame defining a rail channel with an anvil mounted on the sled frame across the rail channel at the rear thereof. A hammer is mounted on the sled frame above the rail channel spaced from the anvil and moves along a ram path extending from a level above the rail channel to a level below the rail channel. Control mechanism is associated with the hammer for actuating the ram to travel along the ram path to contact a rail and force same against the anvil to cause the rail to fracture. In another embodiment a hammer and blade are carried by a member pivotally mounted on the sled frame sequentially to score the rail and then to sever same.
    Type: Grant
    Filed: October 15, 1981
    Date of Patent: April 24, 1984
    Inventors: Steven P. Solomon, James L. Dunaway
  • Patent number: 4383630
    Abstract: An apparatus or machine for simultaneously removing and in situ severing of rails from a rail bed to produce a plurality of rail sections of predetermined lengths including a sled frame defining a rail channel with a block or blade mounted on the sled frame across the rail channel at the rear thereof. Ram means are mounted on the sled frame above the rail channel spaced from the block and moves along a ram path extending from a level above the rail channel to a level below the rail channel. Control mechanism is associated with the ram means for actuating the ram to travel along the ram path to contact a rail and force same against the block or blade to cause the rail to fracture, continued movement of the sled frame along the rail bed and continued operation of the ram means causing the rails to be lifted from the rail bed to be cut into predetermined lengths.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: May 17, 1983
    Inventors: Steven P. Solomon, James L. Dunaway