Patents by Inventor Darrel Woodall

Darrel Woodall 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).

  • Apparatus for holding down workpieces to be machined
    Patent number: 5312154
    Abstract: An apparatus for holding down workpieces in milling machines and other machine tools. A hollow receptacle has undercut regions that receive lugs on the lower end of a stud. The stud thereby connects to the receptacle, and disconnects from it, by being turned only a fraction of a turn. A nut on the stud is friction related to it by an adjustable friction generator. The receptacle, nut and stud cooperate with a strap clamp and heel block, to very quickly and easily mount and demount parts in milling and other machines.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: May 17, 1994
    Inventor: Darrel Woodall