Patents by Inventor Tommy L. McClure

Tommy L. McClure 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).

  • Position indicator for downhole tool
    Patent number: 4121657
    Abstract: Apparatus is disclosed to indicate at the surface when a tool lowered into a well bore on an electric cable is properly positioned in a downhole housing. The tool has a key slot and a muleshoe is carried by the tool to engage a key located on the housing and to guide the key into the key slot to properly position the tool. A sensing coil is carried by the tool and positioned for its magnetic field to pass through the key slot. Circuit means monitor the magnetic field and indicate at the surface when the key has been properly positioned in the slot.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: October 24, 1978
    Assignee: Eastman Whipstock, Inc.
    Inventor: Tommy L. McClure