Patents by Inventor Kaye K. MacKay

Kaye K. MacKay 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).

  • Metal bat with pressurized bladder in hitting zone and method of making same
    Patent number: 6053827
    Abstract: A tubular metal ball bat includes a tubular barrel having a hitting zone and an end cap at a distal end thereof, a handle at a proximal end thereof and a pressurized bladder positioned in the bat barrel and in the area of the hitting zone. A method is also disclosed for inserting and anchoring the pressurized bladder in the hitting zone. A variety of pressurized bladder configurations are disclosed with valves for pressurizing the bladders in the bat barrel. The bladder can include one or more separate bladders or compartments which are designed to occupy a predetermined length of the hitting zone.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: April 25, 2000
    Assignee: Hillerich & Bradsby Co.
    Inventors: Jack W. MacKay, Jr., Kaye K. MacKay, Jack W. MacKay, III