Patents by Inventor Frank Schiffman

Frank Schiffman 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: 9540265
    Abstract: The present invention relates to a chemical feeder that includes a housing having a housing chamber, a sieve plate residing within the housing chamber, and a funnel residing on an upper surface of the sieve plate. The funnel includes upper and lower openings, an interior funnel space, and at least one funnel sidewall aperture. The sieve plate includes a plurality of sieve plate apertures at least a portion of which are in fluid communication with the interior funnel space via the lower funnel opening. During operation, a feed liquid passes up through at least a portion of the sieve plate apertures and into the interior funnel space where it contacts a solid chemical material, so as to form a treated liquid that includes dissolved chemical material, at least a portion of which passes out through the funnel sidewall aperture(s) and exits the chemical feed through an outlet.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: January 10, 2017
    Assignee: AXIALL OHIO, INC.
    Inventors: Richard H. Ferguson, John Gary Miller, Frank Schiffman
  • Publication number: 20150284274
    Abstract: The present invention relates to a chemical feeder that includes a housing having a housing chamber, a sieve plate residing within the housing chamber, and a funnel residing on an upper surface of the sieve plate. The funnel includes upper and lower openings, an interior funnel space, and at least one funnel sidewall aperture. The sieve plate includes a plurality of sieve plate apertures at least a portion of which are in fluid communication with the interior funnel space via the lower funnel opening. During operation, a feed liquid passes up through at least a portion of the sieve plate apertures and into the interior funnel space where it contacts a solid chemical material, so as to form a treated liquid that includes dissolved chemical material, at least a portion of which passes out through the funnel sidewall aperture(s) and exits the chemical feed through an outlet.
    Type: Application
    Filed: March 10, 2015
    Publication date: October 8, 2015
    Inventors: Richard H. Ferguson, John Gary Miller, Frank Schiffman