Patents by Inventor Harlan A. Schwartz

Harlan A. Schwartz 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).

  • Sock filter and retainer for mounting to a liquid supply tube
    Patent number: 5435916
    Abstract: An improved filter assembly for filtering liquid, in particular milk. The improved assembly comprises a retainer for connecting the filter assembly to a liquid supply tube, a filter sock, having a predetermined diameter and length, for filtering the liquid, and an internal support coil, having coils of varying pitch, located within and supporting the filter sock, also having a predetermined diameter and length. The internal support coil extends substantially the entire length of the filter sock. The diameter of the filter sock is slightly greater than the diameter of the internal support coil so that the filter sock fits snugly over the internal support coil. The predetermined length of the filter sock is longer than the predetermined length of the internal support coil so that a flexible tab is provided at the open end of the filter sock.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: July 25, 1995
    Inventor: Harlan A. Schwartz