Patents by Inventor Kenneth A. Hoffman

Kenneth A. 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).

  • Patent number: 7491277
    Abstract: A cold rolled full hard steel strap usable in a strapping machine has a tensile strength of at least about 125.7 thousand pounds per square inch (KSI) when the strap has a width of about 0.500 inches and a thickness of 0.020 inches. The steel strap is fabricated from a coiled steel formed by hot mill rolling and reduced by cold rolling. The steel strap has a composition of approximately (in weight percent): 0.02 to 0.25 percent carbon, 0.15 to 1.50 percent manganese, 0.01 to 0.12 percent aluminum, 0.04 to 0.03 percent nitrogen, 0.04 to 0.50 percent copper, 0.03 to 0.25 percent nickel, 0.02 to 0.25 percent molybdenum, 0.03 to 0.25 percent chromium, maximum 0.05 percent phosphorous, maximum 0.05 percent sulfur, and maximum 0.25 percent silicon. A method for forming the strap also is disclosed.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: February 17, 2009
    Assignee: Illinois Tool Works Inc.
    Inventors: Kenneth A. Hoffman, Dennis A. Miller, Jon E. VanHouten
  • Patent number: 6840731
    Abstract: A coil handler device is configured for grasping, lifting and transporting a coil of material that is coiled in such a manner as to have an outer periphery and an inner periphery and to define a longitudinal axis. The handler device includes a frame and a grasping and lifting assembly. The grasping and lifting assembly includes at least one clamping clement having first and second clamping surfaces for engaging and securing the coil along a radial line at the inner and outer peripheries of the coil. The clamping element includes a first clamp leg elongated in a direction along the radial line and a second clamp leg fixedly connected to the first clamp leg transverse to the first clamp leg at a first end. The second clamp leg has a second end operably connected to a lifting assembly for raising and lowering the coil when it is secured by the clamping element.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: January 11, 2005
    Assignee: Illinois Tool Works, Inc.
    Inventors: Janusz Figiel, Alejandro L. Nocom, John R. Hartnett, Kenneth A. Hoffman, Michael J. Brown
  • Publication number: 20040109749
    Abstract: A coil handler device is configured for grasping, lifting and transporting a coil of material that is coiled in such a manner as to have an outer periphery and an inner periphery and to define a longitudinal axis. The handler device includes a frame and a grasping and lifting assembly. The grasping and lifting assembly includes at least one clamping element having first and second clamping surfaces for engaging and securing the coil along a radial line at the inner and outer peripheries of the coil. The clamping element includes a first clamp leg elongated in a direction along the radial line and a second clamp leg fixedly connected to the first clamp leg transverse to the first clamp leg at a first end. The second clamp leg has a second end operably connected to a lifting assembly for raising and lowering the coil when it is secured by the clamping element.
    Type: Application
    Filed: December 10, 2002
    Publication date: June 10, 2004
    Inventors: Janusz Figiel, Alejandro L. Nocom, John R. Hartnett, Kenneth A. Hoffman, Michael J. Brown
  • Patent number: 5279894
    Abstract: A curable compositions suitable for use as a nonburnable adhesive is provided comprising a mixture of polysiloxane polymers comprising a straight chain component and a branched chain component, a platinum catalysts a liquid organohydrogen polysiloxane cross-linking agent, a low viscosity dimethylvinyl chain-stopped dimethyl polysiloxane and alumina trihydrate.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: January 18, 1994
    Assignee: Liquid System Technologies, Inc.
    Inventors: Kenneth A. Hoffman, Jeffrey E. Julis, Thomas J. Rissmann
  • Patent number: 5079292
    Abstract: A curable composition, suitable for use as a nonburnable adhesive is provided comprising a mixture of polysiloxane polymers comprising a straight chain component and a branched chain component, a platinum catalyst, a liquid organohydrogen polysiloxane cross-linking agent, a low viscosity dimethylvinyl chain-stopped dimethyl polysiloxane and alumina trihydrate.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: January 7, 1992
    Assignee: Liquid System Technologies, Inc.
    Inventors: Kenneth A. Hoffman, Jeffrey E. Julis, Thomas J. Rissmann