Patents by Inventor John M. Rattenbury

John M. Rattenbury 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).

  • Baffle insert for drains
    Publication number: 20030141231
    Abstract: A baffle insert for conversion of conventional gravity drains into siphonic drains. The baffle insert is placed into a sump bowl of a gravity drain and by nature of its design changes hydraulic condition in the drain to a siphonic condition. The baffle insert is composed of a baffle plate and a plurality of fin extensions coupled to a bottom surface of the baffle plate. In a preferred embodiment, the number of fin extensions is 12, and the bottom surface of the baffle plate has a concave shape.
    Type: Application
    Filed: January 30, 2002
    Publication date: July 31, 2003
    Inventors: John M. Rattenbury, Per Sommerhein
  • Siphonic roof drain
    Patent number: D576257
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: September 2, 2008
    Assignee: Rainwater Management Solutions
    Inventor: John M. Rattenbury
  • Siphonic roof drain
    Patent number: D578619
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: October 14, 2008
    Assignee: Rainwater Management Solutions
    Inventor: John M. Rattenbury