Patents by Inventor Bernhard Burkard

Bernhard Burkard 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: 4794952
    Abstract: The invention relates to a combination single-handle mixing valve and appliance valve assembly, mounted in a common housing and having common hot and cold water connections. The appliance valve, axially positioned between the mixing valve cartridge and the manifold, is in fluid communication with the mixing valve and includes a handle to supply water to the appliance.
    Type: Grant
    Filed: January 29, 1988
    Date of Patent: January 3, 1989
    Assignee: American Standard
    Inventor: Bernhard Burkard
  • Patent number: 4784368
    Abstract: A self-closing valve assembly for sanitary installations is disclosed. The valve assembly includes upper and lower valve housings which define a metering chamber that is normally filled with a metering fluid. A metering means, shiftably mounted in the lower valve housing, includes a first one-way valve means which displaces a predetermined volume of the metering fluid when said valve assembly is shifted to its opened position. A closure means, which includes a second one-way valve means, is operably coupled to the metering means to automatically shift said metering means from its opened to its normally closed position, by transferring the displaced volume of said metering fluid in the metering chamber through a second one-way valve means after a predetermined period of time has elapsed, to thereby close said valve assembly.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: November 15, 1988
    Assignee: American Standard Inc.
    Inventors: Wilhelm Koch, Bernhard Burkard