Patents by Inventor David J. Peterson, Jr.

David J. Peterson, Jr. 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).

  • MOTOR-DRIVEN PUMP FOR POOL OR SPA
    Publication number: 20090100589
    Abstract: An improved motor-driven pump is provided for delivering a flow of water in a swimming pool or spa environment or the like. The improved pump includes a motor mounted within a motor housing having a seal plate mounted at one end thereof. The seal plate carries a shaft bearing for rotatably supporting a drive shaft having an outboard end connected to an impeller disposed within a pump chamber defined cooperatively by the seal plate and a volute housing mounted thereon. A primary seal assembly includes an axially spring-loaded dynamic seal ring carried on the drive shaft for rotation therewith and for running engagement with a stationary bushing carried by the seal plate. A secondary seal assembly is positioned axially between the primary seal assembly and motor bearing, and includes at least one slinger disk for radially outwardly slinging any water leaking past the primary seal assembly through a vent chamber.
    Type: Application
    Filed: December 23, 2008
    Publication date: April 23, 2009
    Inventors: David J. Peterson, JR., Hassan Hamza, Kenneth A. Peterson, Jeffrey A. Wichmann
  • Motor-driven pump for pool or spa
    Patent number: 7001159
    Abstract: An improved motor-driven pump is provided for delivering a flow of water in a swimming pool or spa environment or the like. The improved pump includes a motor mounted within a motor housing having a seal plate mounted at one end thereof. The seal plate carries a shaft bearing for rotatably supporting a drive shaft having an outboard end connected to an impeller disposed within a pump chamber defined cooperatively by the seal plate and a volute housing mounted thereon. A primary seal assembly includes an axially spring-loaded dynamic seal ring carried on the drive shaft for rotation therewith and for running engagement with a stationary bushing carried by the seal plate. A secondary seal assembly is positioned axially between the primary seal assembly and motor bearing, and includes at least one slinger disk for radially outwardly slinging any water leaking past the primary seal assembly through a vent chamber.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: February 21, 2006
    Assignee: Polaris Pool Systems, Inc.
    Inventors: David J. Peterson, Jr., Hassan Hamza, Kenneth A. Peterson, Jeffrey A. Wichmann
  • Pool cleaner
    Patent number: D469589
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: January 28, 2003
    Assignee: Polaris Pool Systems, Inc.
    Inventors: Jeffrey A. Wichmann, Gerhardus J. Stoltz, Arunabh Lath, Steven E. Smart, David A. Klimas, David J. Peterson, Jr.
  • Pool cleaner wheel
    Patent number: D481181
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: October 21, 2003
    Assignee: Polaris Pool Systems, Inc.
    Inventors: Arunabh Lath, Gerhardus J. Stoltz, Steven E. Smart, David J. Peterson, Jr., Eric J. Kownacki
  • Rebar chair with depth gauge
    Patent number: D618988
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: July 6, 2010
    Inventor: David J. Peterson, Jr.