Patents by Inventor Larry Childerston

Larry Childerston 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).

  • Laminar flow lighted waterfall apparatus for spa
    Patent number: 7472430
    Abstract: A laminar flow waterfall in the form of a single or multiple streams of water, each exiting from a nozzle in the top edge of a spa. The laminar water stream is created by a venturi nozzle located in a plenum chamber. The inlet side of the nozzle has a cover with a plurality of small holes forcing the water flow to enter the nozzle as laminar flow. A flow divider inside the venturi nozzle, from the inlet to the restriction of the nozzle, maintains the flow laminar through the nozzle. Light is injected into the flow divider at the inlet and is carried by the flow divider to be injected into the water flow at the restriction of the nozzle.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: January 6, 2009
    Assignee: Watkins Manufacturing Corporation
    Inventors: Chris H. McDonald, Douglas R. Gastineau, Richard Kunkel, Larry Childerston
  • Laminar flow lighted waterfall apparatus for spa
    Publication number: 20070067899
    Abstract: A laminar flow waterfall in the form of a single or multiple streams of water, each exiting from a nozzle in the top edge of a spa. The laminar water stream is created by a venturi nozzle located in a plenum chamber. The inlet side of the nozzle has a cover with a plurality of small holes forcing the water flow to enter the nozzle as laminar flow. A flow divider inside the venturi nozzle, from the inlet to the restriction of the nozzle, maintains the flow laminar through the nozzle. Light is injected into the flow divider at the inlet and is carried by the flow divider to be injected into the water flow at the restriction of the nozzle.
    Type: Application
    Filed: November 27, 2006
    Publication date: March 29, 2007
    Inventors: Chris McDonald, Douglas Gastineau, Richard Kunkel, Larry Childerston
  • Laminar flow lighted waterfall apparatus for spa
    Patent number: 7162752
    Abstract: A laminar flow waterfall in the form of a single or multiple streams of water, each exiting from a nozzle in the top edge of a spa. The laminar water stream is created by a venturi nozzle located in a plenum chamber. The inlet side of the nozzle has a cover with a plurality of small holes forcing the water flow to enter the nozzle as laminar flow. A flow divider inside the venturi nozzle, from the inlet to the restriction of the nozzle, maintains the flow laminar through the nozzle. Light is injected into the flow divider at the inlet and is carried by the flow divider to be injected into the water flow at the restriction of the nozzle.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: January 16, 2007
    Assignee: Watkins Manufacturing Corporation
    Inventors: Chris H. McDonald, Douglas R. Gastineau, Richard Kunkel, Larry Childerston
  • Laminar flow lighted waterfall apparatus for spa
    Publication number: 20050155144
    Abstract: A laminar flow waterfall in the form of a single or multiple streams of water, each exiting from a nozzle in the top edge of a spa. The laminar water stream is created by a venturi nozzle located in a plenum chamber. The inlet side of the nozzle has a cover with a plurality of small holes forcing the water flow to enter the nozzle as laminar flow. A flow divider inside the venturi nozzle, from the inlet to the restriction of the nozzle, maintains the flow laminar through the nozzle. Light is injected into the flow divider at the inlet and is carried by the flow divider to be injected into the water flow at the restriction of the nozzle.
    Type: Application
    Filed: January 16, 2004
    Publication date: July 21, 2005
    Inventors: Chris McDonald, Douglas Gastineau, Richard Kunkel, Larry Childerston