Patents by Inventor Thomas C. Means

Thomas C. Means 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: 4515230
    Abstract: A drill bit for use in mining, and in particular in rotative and percussion drilling action which includes a generally cylindrical body with a driving shank at one end and a transverse cutting insert at the other end. The body is hollow to conduct a suction force to the drilling area and side ports are formed in the body connected to the hollow center to draw in dust, chips and cuttings resulting from the drilling action. The shape and extent of the side ports is disclosed as 1/4 to 1/3 of the axial length of the body of the bit and circumferentially significantly increased with a shape which provides circumferential access to the ports as well as radial.
    Type: Grant
    Filed: August 21, 1984
    Date of Patent: May 7, 1985
    Assignee: Fansteel Inc.
    Inventors: Thomas C. Means, Kenneth C. Emmerich