Patents by Inventor Donald L. Gilreath

Donald L. Gilreath 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: 4531504
    Abstract: A ball expelling device has a pair of soft, counter-rotating, coacting wheels mounted in a housing container on a pair of parallel spaced axles. A ball feed tube terminates in an outlet opening defined by a pair of opposed fingers at a location between opposed peripheral surfaces of the wheels. The ball feed tube is selectably positionable so that the outlet opening is moveable both in a direction perpendicular to the plane of the wheels and in a direction perpendicular to the plane of the wheel axles. A drive assembly operates to counter-rotate the wheels and preferably includes a pair of step-cone drive pulleys mounted on a pair of parallel drive axles with the drive pulleys each connected by a v-belt to a respective multi-stage pulley mounted on a wheel axle. The drive axles are interconnected by a transmission so that rotation of one drive axle causes rotation of the other drive axle in an opposite angular direction with equal magnitude.
    Type: Grant
    Filed: January 31, 1983
    Date of Patent: July 30, 1985
    Inventor: Donald L. Gilreath