Patents by Inventor Harry H. Filler

Harry H. Filler 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).

  • Container and leak-testing system therefor
    Patent number: 3930401
    Abstract: A system for testing opening-equipped containers for leakage during the entire period, which is usually relatively long, between the time that such containers are fabricated by the manufacturer thereof and the time that they are filled by the user with the product intended therefor. The system includes a testing method, a particular test closure or cap and structural relationship thereof with a container opening, and apparatus for establishing a pressure differential between the interior and exterior of any container under test.
    Type: Grant
    Filed: April 30, 1973
    Date of Patent: January 6, 1976
    Inventor: Harry H. Filler