Patents by Inventor Peter A. Schuster

Peter A. Schuster 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).

  • Constant level leak detection apparatus and method
    Patent number: 4945757
    Abstract: Apparatus for and method of testing whether a tank completely filled with liquid is leaking comprising a liquid containing standpipe in fluid communication with a tank to be tested, and mechanism for maintaining a substantially constant head pressure on the bottom of a tank being tested as the volume of liquid from the tank tends to expand or contract.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: August 7, 1990
    Inventor: Peter A. Schuster