Patents by Inventor Robert A. D'Offay

Robert A. D'Offay 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: 5536397
    Abstract: The skimming device is designed for use in a swimming pool to skim leaves and other floating debris off the surface of the pool water. The device includes a conduit apparatus incorporating a pipe which terminates at one end in a connection arrangement which connects to the return flow inlet of the swimming pool and at the other end in a nozzle. The conduit apparatus is then self-supporting relative to the return flow inlet. A porous trap is supported relative to the conduit apparatus with the mouth of the trap at the surface of water in the swimming pool and spaced from the nozzle with the nozzle aimed towards the mouth. In operation, pressurised water conveyed by the pipe from the return flow inlet through the nozzle entrains floating debris from the surface of the swimming pool and directs it into the trap.
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: July 16, 1996
    Inventor: Robert A. D'Offay