Patents by Inventor Fred J. Grieser, Sr.

Fred J. Grieser, Sr. 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).

  • Combination tool
    Patent number: 4100637
    Abstract: A combination tool comprising a chuck key provided with at least one opening formed in the shaft thereof to receive therein a tool usually employed prior to the formation or following the formation of a hole in a structure. The chuck key is adapted to engage with the external teeth formed on one end of a chuck to either tighten or loosen the chuck on a tool such as a drill bit or the like. The tool carried by the shaft of the chuck key may comprise a punch, or a reamer, or a screw driver or the like.
    Type: Grant
    Filed: March 24, 1976
    Date of Patent: July 18, 1978
    Inventors: Fred J. Grieser, Sr., Fred J. Grieser, Jr.