Patents by Inventor David M. Lanzer

David M. Lanzer 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).

  • Water saver valve
    Patent number: 7077376
    Abstract: The present invention relates to a valve designed to be in series with a toilet water supply line and the inlet of a toilet tank so that water which is flowing into the tank must flow through the valve. The valve includes a shutoff spool that is actuated by an intensifier piston. When the water volume exceeds the tank capacity due to a failure of the float valve in the toilet supply tank, the shutoff spool is actuated by the intensifier piston allowing flow to the toilet to be blocked.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: July 18, 2006
    Assignee: Devas, Inc.
    Inventors: Ralph Agnoni, James E. Bryan, David M. Lanzer