Patents by Inventor Joe L. de Figueiredo

Joe L. de Figueiredo 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: 4872920
    Abstract: A method for removing asbestos-containing materials from substrates including a nozzle assembly for directing streams of pressurized steam to penetrate asbestos-containing material sufficiently to loosen binders therein so that the material can be easily dislodged from the substrate by a second stream of higher pressure steam. The nozzle assembly also includes a suction device having an inlet opening arranged adjacent steam ejection nozzles to draw-in asbestos particles and fibers entrained by the steam directed onto the asbestos-containing materials.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: October 10, 1989
    Inventors: Tom S. Flynn, Joe L. de Figueiredo