Patents by Inventor Milton Hilmer

Milton Hilmer 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).

  • Drain trap valve mechanism
    Patent number: 4192341
    Abstract: A float actuated valve mechanism for automatically removing a predetermined amount of accumulated liquid condensate from a sump area of a gas pressurized drain trap or the like so as to regulate the level of liquid in such a sump area. A four-bar linkage between a float and a valve plug provides a non-linearly varying mechanical advantage throughout the movement of the float. In a closed position the valve plug mates with a rigid seating surface and an elastomeric seating surface to provide a wear-resistant seal.
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: March 11, 1980
    Assignee: Sarco Company, Inc.
    Inventor: Milton Hilmer