Patents by Inventor Douglas L. Stout

Douglas L. Stout 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: 8245852
    Abstract: Embodiments of the invention provide a pre-filter assembly for use with a pump. The assembly includes a housing having an intake channel and an outlet channel. The intake channel includes an intake flange around a first circumference and a ribbed surface to facilitate sealing. The outlet channel includes a bottom portion and an outlet flange around a second circumference. The intake flange and the outlet flange are on opposite sides of the housing. The assembly also includes a basket positioned in the housing. The basket has a bottom side and is positioned above the bottom portion of the outlet channel to form a chamber. The basket is positioned in closer proximity to the intake channel than to the outlet channel. In addition, the assembly includes a securing device with a lid having ridges and a clear top to permit the user to view the contents of the basket. The securing device also includes a locking ring with slots and openings to permit the user to view the contents of the basket.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: August 21, 2012
    Assignee: Pentair Water Pool and Spa, Inc.
    Inventors: JoAnne B. Sloan, Rajaiah Chinthanippula, Douglas L. Stout, Dick Edwards
  • Publication number: 20100314301
    Abstract: Embodiments of the invention provide a pre-filter assembly for use with a pump. The assembly includes a housing having an intake channel and an outlet channel. The intake channel includes an intake flange around a first circumference and a ribbed surface to facilitate sealing. The outlet channel includes a bottom portion and an outlet flange around a second circumference. The intake flange and the outlet flange are on opposite sides of the housing. The assembly also includes a basket positioned in the housing. The basket has a bottom side and is positioned above the bottom portion of the outlet channel to form a chamber. The basket is positioned in closer proximity to the intake channel than to the outlet channel. In addition, the assembly includes a securing device with a lid having ridges and a clear top to permit the user to view the contents of the basket. The securing device also includes a locking ring with slots and openings to permit the user to view the contents of the basket.
    Type: Application
    Filed: August 24, 2010
    Publication date: December 16, 2010
    Inventors: JoAnne B. Sloan, Rajaiah Chinthanippula, Douglas L. Stout, Dick Edwards
  • Patent number: 7780406
    Abstract: An injection molded commercial pool pump is provided having a motor, an adapter plate connected to the motor, a housing connected to the adapter plate further comprising a channel, a sealing plate positioned between the adapter plate and housing, an impeller connected to the motor shaft, an o-ring positioned between the sealing plate and housing to prevent leaking of internal fluids and a diffuser positioned over the impeller and connected to the sealing plate where the diffuser and impeller are inserted into the channel.
    Type: Grant
    Filed: August 16, 2004
    Date of Patent: August 24, 2010
    Assignee: Pentair Water Pool and Spa, Inc.
    Inventors: JoAnne B. Sloan, Rajaiah Chinthanippula, Douglas L. Stout, Dick Edwards