Patents by Inventor Walter J. De Jong

Walter J. De Jong 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: 4513687
    Abstract: A feeding apparatus comprises a manger having a plurality of control gates which require sequential entry into feeding stalls. An adjustable feed mechanism makes a predetermined amount of feed available to each animal and requires the animal to eat the feed before its entire portion will be dispensed. When feeding is complete, the manger is moved to deny the animals further access to the feed. Preferred embodiments include an elevated splash guard for improved sanitation.
    Type: Grant
    Filed: January 31, 1984
    Date of Patent: April 30, 1985
    Inventor: Walter J. De Jong