Patents by Inventor Blair Underhill

Blair Underhill 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: 5622138
    Abstract: An artificial sow apparatus that substitutes for a divider panel between the creep areas of adjacent farrowing crates and provides both heat and alternative food and liquid in close association with one another is described in two embodiments. In both embodiments, piglets from adjacent crates can cuddle against heated surfaces in close association with a gravity-fed solid pellet feed dispenser and a source of liquid. In the first embodiment, the heat is provided from a slanted wall of an enclosed heat-retaining, liquid-filled heater or radiator, and both the solid and liquid feed are available immediately above the heated surface (and are heated by the same radiator) in the form of a trough filled with feed pellets and artificial teats for dispensing liquid. In the second embodiment, both the liquid and solid feed are provided in adjacent troughs and heat is provided by a mat heater just below or just beside the troughs.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: April 22, 1997
    Inventor: Blair Underhill