Patents by Inventor Carter Thomson

Carter Thomson 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).

  • Animal watering tank
    Patent number: 5720239
    Abstract: An animal watering tank includes a spherical ball closure member which is returnable to its closed position by a track which extends laterally and downwardly into the water. The track is of one piece construction and is secured to the bottom side of the top wall of the tank in an upwardly extending locating recess.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: February 24, 1998
    Assignee: Ahrens Agricultural Industries, Inc.
    Inventor: Carter Thomson
  • Animal farrowing stall with sibling protector
    Patent number: 4471719
    Abstract: A farrowing stall having sidewalls and end walls includes a U-shaped downwardly and inwardly facing member pivotally connected to the stall sidewalls for being pivoted between a raised vertical position to a downwardly horizontal position for limiting movement of the animal towards the adjacent end wall. A chain suspended from the top of the stall limits downward pivoting to a horizontal position.
    Type: Grant
    Filed: May 26, 1982
    Date of Patent: September 18, 1984
    Assignee: Ahrens Agricultural Industries Co.
    Inventor: Carter Thomson
  • Animal waterer
    Patent number: D421158
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: February 22, 2000
    Assignee: Ahrens Agricultural Industries, Inc.
    Inventor: Carter Thomson