Patents by Inventor Donald F. Link

Donald F. Link 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: 4150795
    Abstract: A system for the manufacture of animal feed from food waste wherein the food waste is ground, sterilized, and then dried in a drum dryer wherein an even and continuous drying process is effected by feed control and by zone regulating the temperature of the surface of the drums of the dryer.
    Type: Grant
    Filed: August 3, 1977
    Date of Patent: April 24, 1979
    Assignee: Recovery Systems, Inc.
    Inventor: Donald F. Link
  • Patent number: 4120457
    Abstract: A device for pulverizing waste food and other similar materials employing a pivotally mounted hammer on a horizontally rotating plate which operates in relation to a fixed cylindrical surface of variable height lands and grooves, and thereafter, the food is passed between horizontally arranged and relatively rotating sets of lands and grooves.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: October 17, 1978
    Assignee: Recovery Systems, Inc.
    Inventor: Donald F. Link
  • Patent number: 4074868
    Abstract: A system for pulverizing waste food and converting it into dried animal feed in which the waste food is first passed through a cylindrical chopper comprising a pivotally mounted hammer on a rotating plate which operates in relationship to a fixed cylindrical surface of lands and grooves, and thereafter, the food is passed between horizontally arranged and relatively rotating sets of lands and grooves. The material is then passed to a buffer storage tank where it is agitated to maintain consistency, and thereafter, in a constant flow provided to a rotating drum-type dryer where the material is dried and formed into flakes having a moisture content of 10 to 14 percent.
    Type: Grant
    Filed: February 7, 1977
    Date of Patent: February 21, 1978
    Assignee: Recovery Systems, Inc.
    Inventor: Donald F. Link
  • Patent number: 3971306
    Abstract: The manufacture of animal feed using as a principal ingredient food waste, wherein the food waste is first ground to a fine particle size, cooked and dried, and then blended with certain additives to provide a complete animal feed.
    Type: Grant
    Filed: July 30, 1974
    Date of Patent: July 27, 1976
    Assignee: Cord Systems, Inc.
    Inventors: Frank D. Wiese, Donald F. Link, Charles W. Brown