Patents by Inventor Luigi Perali

Luigi Perali 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).

  • Inflatable cushion
    Patent number: 4914762
    Abstract: The inflatable cushion includes a front and rear cloths or flexible sheets having a substantially trapezoidal outline, a peripheral band arranged between and tightly sealed to the front and rear cloths to delimit therewith a sealed enclosure, and a valve means or opening for controllably supplying a fluid to, and discharging it from, the enclosure.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: April 10, 1990
    Inventors: Luigi Perali, Costanza Perali