Patents by Inventor Stephen R. Lyden

Stephen R. Lyden 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: 6055933
    Abstract: Apparatus for controlling automatically the delivery of feed, such as hay flakes, to a feeding receptacle. The apparatus includes an housing having an upper feed receiving portion and a lower feed delivering portion, the lower portion having an opening for passage of feed into the receptacle. A first door is disposed in the housing between the upper feed receiving portion and the lower feed delivering portion, the door being movable between a closed condition preventing feed from entering the lower portion and an opened condition permitting feed to enter the lower portion. A second door disposed in the upper feed receiving portion enables delivery of feed thereto. A cable interconnects the first and second door to hold one door in a closed condition when the other door is opened. An electromagnet, coupled to an electrical timer, controls operation of the first door so that feed is delivered automatically to the receptacle at a predetermined time.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: May 2, 2000
    Inventor: Stephen R. Lyden