Patents by Inventor Marvin R. Hackett

Marvin R. Hackett 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).

  • Device for opening furnace tap holes
    Patent number: 6110415
    Abstract: The invention provides a remotely controlled furnace tap hole tapping system. The system is pneumatically driven and is able to tap holes placed at different heights, different positions, and different angles. The invention replaces an oxygen filled lance which is consumable, with a solid metal lance. The lance is carried by a carrier system, which moves long a track. The invention provides a gantry that is able to move the carrier system to different tracks. The pneumatic drive system cools the tapping system, in addition to driving the tapping system.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: August 29, 2000
    Assignee: FMC Corporation
    Inventors: Raymond L. Hickman, Gerald J. Madden, Marvin R. Hackett