Patents by Inventor Gilbert K. Fletcher

Gilbert K. Fletcher 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: 4944637
    Abstract: A valved seed outlet is disclosed for use in a seed apparatus for dispensing fluffy or hairy coated seed that is prone to bridging. The valve seed outlet is mounted in an opening of a storage container and comprises mounting structure for mounting the outlet beneath the storage container. A valve seat defines an orifice beneath the storage container through which seed may flow. The valve seat has a valve member mounted therein. The valve member is restrained from rotary motion by at least one support post. The valve seed outlet further has a seed sweep member mounted to disturb the seed at the orifice. The seed sweep member is continuously or intermittently activated. Even further, the valve seed outlet comprises a pair of perpendicular passages using the venturi effect to draw seed through valve aspiration.
    Type: Grant
    Filed: August 14, 1989
    Date of Patent: July 31, 1990
    Inventor: Gilbert K. Fletcher