Patents by Inventor Jerry W. Davidson

Jerry W. Davidson 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).

  • Drill bit for drilling a hole in layered material of different hardness
    Patent number: 4966503
    Abstract: A drill bit for drilling a hole in layered material where the first layer encountered by the bit is softer than the second layer and where the second layer encountered by the bit produces chips capable of abrading the first layer. The drill bit comprises a solid shaft having a cutting tip, an internal bore for conducting flushing fluid to the tip and a flute for conveying the fluid and the chips away from the tip. A collar fixed to the outer surface of the shaft prevents the chips from contacting the bore drilled in the first layer.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: October 30, 1990
    Assignee: The Boeing Company
    Inventor: Jerry W. Davidson