Patents Assigned to Primate Products
  • Patent number: 5343828
    Abstract: A simple puzzle toy designed for the amusement of primates and enrichment of their environment. The device of the preferred embodiment is a sphere having a plurality of holes. Pellets of food or other substances attractive to the primate are placed inside the device. The dimensions the holes are such that the pellets will pass through the holes in certain orientations and will not pass through the holes in other orientations, or such that it will have corners or edges of food and treats too large to be retrieved whole to be chewed until the food is small enough to be aligned with the opening and be removed in its entirety. Arrangement of the pellets, or reduction in size of the pellets by chewing, provides the device's amusement and environmental enrichment value.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: September 6, 1994
    Assignee: Primate Products
    Inventors: Paul W. Houghton, Kenneth R. Bloom