Patents by Inventor Donald L. Stirling

Donald L. Stirling 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: 4597672
    Abstract: A feed mixer includes a mixer tank with a bottom wall having two curved wall portions defining the bottom of a large main chamber and smaller auxiliary chamber with an elongated ridge therebetween. A rotor having several elongated rotor bars adjacent the outer periphery is supported in the main chamber for rotation in a direction for movement of the rotor bars across the bottom of the main chamber toward the auxiliary chamber. The auxiliary chamber includes a pair of stacked augers adapted for moving material from one end of the tank to the other in opposite directions. Material is thus continuously cycled from the main chamber into a lower portion of the auxiliary chamber where it is moved toward one end of the mixer, forced upwardly into an upper portion of the auxiliary chamber and then directed toward the opposite end of the tank while spilling back into the main chamber for efficient end-to-end mixing of even long stringy hay material.
    Type: Grant
    Filed: January 17, 1985
    Date of Patent: July 1, 1986
    Assignee: Stirco, Inc.
    Inventors: Benjamin R. Neier, Donald L. Stirling
  • Patent number: 4506990
    Abstract: A feed mixer includes a mixer tank with a bottom wall having two curved wall portions defining the bottom of a large main chamber and smaller auxiliary chamber with an elongated ridge therebetween. A rotor having several elongated rotor bars adjacent the outer periphery is supported in the main chamber for rotation in a direction for movement of the rotor bars across the bottom of the main chamber toward the auxiliary chamber. The auxiliary chamber includes a pair of stacked augers adapted for moving material from one end of the tank to the other in opposite directions. Material is thus continuously cycled from the main chamber into a lower portion of the auxiliary chamber where it is moved toward one end of the mixer, forced upwardly into an upper portion of the auxiliary chamber and then directed toward the opposite end of the tank while spilling back into the main chamber for efficient end-to-end mixing of even long stringy hay material.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: March 26, 1985
    Assignee: Stirco Inc.
    Inventors: Benjamin R. Neier, Donald L. Stirling