Patents by Inventor Alonda O. Williams

Alonda O. Williams 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).

  • Fire escape ladder with integral air cushion
    Patent number: 5203427
    Abstract: A portable fire escape ladder with an inflatable air cushion is provided. The ladder has an upper window sill engaging portion, and a plurality of frame members interconnected with rungs. The air bag is inflated by propellant from a trigger operable propellant source, for decelerating a person prior to alighting on the ground.
    Type: Grant
    Filed: May 15, 1992
    Date of Patent: April 20, 1993
    Inventors: Anthony E. Williams, Sr., Alonda O. Williams