Patents by Inventor Ronald L. Perkins

Ronald L. Perkins 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).

  • Underwater strobe flash unit
    Patent number: 3952190
    Abstract: A method of waterproofing a strobe flash unit for use in underwater photography. A mold is formed and a strobe flash unit is mounted within the mold. Epoxy resin is poured into the mold to surround the strobe flash unit with the resin. The resin is then cured until it hardens, at which time the mold is removed from the epoxy resin and strobe flash unit. The resultant product is a strobe flash unit encapsulated in a transparent waterproof casing.
    Type: Grant
    Filed: November 8, 1974
    Date of Patent: April 20, 1976
    Inventor: Ronald L. Perkins