Patents by Inventor H. D. Hollifield

H. D. Hollifield 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).

  • Spindle adapter for tool holder with tool adjustment control
    Patent number: 5032043
    Abstract: A tool holder and spindle adapter includes a quick change section for securing into a power spindle, a body having an axial bore mounting a positive drive and a collet holder shank to receive a tool holder collet and tool, with the tool extending into operative engagement with the positive drive. A rotatable tool adjuster is mounted within the body upon a transverse axis and includes an eccentric cam device engageable with the positive drive for controlling longitudinal in and out adjustments of the tool.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: July 16, 1991
    Assignee: T. M. Smith Tool International Corporation
    Inventor: H. D. Hollifield