Patents by Inventor Thomas W. Hoffman

Thomas W. Hoffman 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).

  • Publication number: 20030089144
    Abstract: In one embodiment, a retrofit bicycle cable locking system includes an L shaped tube having a first straight part, a second straight part and a third arcuate part joining the first and second parts. The tube is configured for attachment to a frame of a bicycle such that the first part of the tube extends along the top tube of the bicycle frame and the second part of the tube extends along the seat tube of the bicycle frame. A double length cable extends from and automatically retracts into the tube.
    Type: Application
    Filed: December 23, 2002
    Publication date: May 15, 2003
    Inventor: Thomas W. Hoffman
  • Patent number: 6505846
    Abstract: A bicycle cable locking system in which a double length cable stowed in one of the frame tubes automatically surrounds the head as it is withdrawn from a stowed position to an extended position, and a double or single length cable stowed in one of the frame tubes that automatically retracts back into the stowed position when it is released from an extended position. The ends of the cable may be secured with an in-line lock integral to the cable or with a pad lock by constructing the ends the cable as a loop.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: January 14, 2003
    Assignee: E Z Lock, LLC
    Inventor: Thomas W. Hoffman
  • Patent number: 5992852
    Abstract: A game method for learning trucking that includes a game board with a peripheral path therearound and having different indicia thereon, various decks of cards, truck play pieces, and a spinner assembly. The different indicia on the peripheral path includes a start terminal, two truck sales, two rest areas, a runaway ramp, a weigh station, a truck stop, names of cities, and speed zones. The player moves his truck play piece around the peripheral path following the instructions given on the cards in the various card decks.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: November 30, 1999
    Inventors: Randall W. Brooks, Allan L. Manson, Thomas W. Hoffman
  • Patent number: 4900356
    Abstract: An improved method and apparatus for producing metallized iron or other metal by direct reduction of particulate metal oxide is disclosed. Spent reducing gas is recycled from a reduction furnace through a cooler-scrubber and a catalyst-containing stoichiometric gas reformer. In the cooler-scrubber, the spent reducing gas interacts with scrub water. Dust having an affinity for sulfur is recovered from the process and added to the scrub water causing sulfur in the spent reducing gas to form solids which precipitate and are removed as solid waste. Lowering the sulfur content of the spent reducing gas reduces the sulfur contamination of the catalyst and improves the efficiency of the process.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: February 13, 1990
    Assignee: Midrex International B.V.
    Inventor: Thomas W. Hoffman