Patents by Inventor William T. Ryan

William T. Ryan 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).

  • Vibration damping superabsorbent composites
    Patent number: 5472761
    Abstract: Vibration damping composites suitable for use in construction panels or constrained-layer elements are described. The composites include a viscoelastic gel prepared from 99.5-92.5 wt. % water and 0.5-7.5 wt. % of a superabsorbent polymer. Preferably, the polymer is of the carboxylic acid type and optionally includes starch or cellulose.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: December 5, 1995
    Assignee: Hoechst Celanese Corp.
    Inventors: Harris A. Goldberg, Joseph M. Pickton, Joseph J. DiBiase, William T. Ryans
  • Swim exercise or training apparatus
    Patent number: 5192256
    Abstract: An exercise or training apparatus employing a tether line having spaced fasteners on or adjacent its ends adapted to conveniently fasten the line across a swimming pool or other body of water to cooperating anchor devices in or adjacent to the pool, one or more coupling elements mounted on the line, and a harness integral with or adapted for attachment to the coupling elements and adapted for mounting on a swimmers body, the coupling elements providing for selective positioning of one or more swimmers along the line.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: March 9, 1993
    Inventor: William T. Ryan
  • Reflector-type hid sodium vapor lamp unit with dichroic reflector
    Patent number: 4197480
    Abstract: A reflector-type high-intensity-discharge vapor lamp unit having a generally parabolic rear reflector member is provided with a dichroic reflector carried as a coating on the inner surface thereof. The dichroic reflector selectively reflects visible light having a wave-length from about 400 to 750 nanometers and selectively transmits infrared radiation having a wavelength from about 750 to 1600 nanometers.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: April 8, 1980
    Assignee: Westinghouse Electric Corp.
    Inventor: William T. Ryan, Jr.