Patents by Inventor Thomas Durham

Thomas Durham 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: 5921730
    Abstract: A rotary power tool is provided having a remotely actuated chuck device. The chuck is mounted onto the end of a drive spindle that extends from the casing of the power tool. The chuck includes an outer sleeve member that is axially movable relative to the drive spindle between a gripping position and a release position. A sleeve actuating device is provided having a first member engaged with the outer sleeve member and which extends generally radially outward from the drive spindle or chuck. The first member is movable in a direction so as to move the outer sleeve member between the gripping position and the release position. The sleeve actuating device includes an actuator member configured with the first member to move the first member upon an external force being applied thereto. In this manner, an operator can move the chuck device between the gripping and release positions at a location remote from the chuck device and drive spindle.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: July 13, 1999
    Assignee: Power Tool Holders Incorporated
    Inventors: Gary Young, Thomas Durham