Patents by Inventor William L. Brumfield

William L. Brumfield 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: 4779521
    Abstract: Apparatus for precision metering of selected amounts of fungible or granular material such as coffee consisting of a frame, a hopper supported by the frame having a large upper storage area and communicating with a small lower vertically oriented exiting trough, horizontal sliding plate extending below a forward lip of the exiting trough, the horizontal sliding plate having an edge contacting the extended rear lip and for moving the plate to traverse the rear lip during metering of the granular material, receptacle securably attached on an under side of the horizontal sliding plate, and the horizontal sliding plate cooperating with the rear lip during traverse of the horizontal sliding plate for filling the receptacle means by the rear lip causing the metering of the granular material on the sliding plate to dump into the receptacle. The forward lip is adjustable for controlling the magnitude of metering of the granular material.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: October 25, 1988
    Inventor: William L. Brumfield