Patents by Inventor Norman B. Gershon

Norman B. Gershon 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).

  • Filtration system with axial flow cartridge
    Patent number: 5427683
    Abstract: An axial flow filtration cartridge, a system, a support assembly, an apparatus, as well as a process are provided for removing particulate matter as well as dissolved heavy metal ions and the like from an aqueous effluent stream. The invention is useful for removing contaminants from industrial waste streams. The cartridge contains features which make it relatively resistant to fouling by solid particles. Additionally, the cartridge has no central void volume. No separate housing for the cartridges is required. In a system embodiment the cartridge has a filtering chamber containing absorbent clay particles confined between porous liquid-permeable retainer. An upstream cartridge cap and a downstream cartridge cap removably receive the ends of the filter cartridge in a liquid-tight seal. The flow of aqueous effluent to each of the cartridges is individually controlled.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: June 27, 1995
    Assignee: Oil-Dri Corporation of America
    Inventors: Norman B. Gershon, David J. Truluck
  • Filtration system with axial flow cartridge
    Patent number: 5296137
    Abstract: An axial flow filtration cartridge, a system, a support assembly, an apparatus, as well as a process are provided for removing particulate matter as well as dissolved heavy metal ions and the like from an aqueous effluent stream. The invention is useful for removing contaminants from industrial waste streams. The cartridge contains features which make it relatively resistant to fouling by solid particles. Additionally, the cartridge has no central void volume. No separate housing for the cartridges is required. In a system embodiment the cartridge has a filtering chamber containing absorbent clay particles confined between porous liquid-permeable retainer means. An upstream cartridge cap and a downstream cartridge cap removably receive the ends of the filter cartridge in a liquid-tight seal. The flow of aqueous effluent to each of the cartridges is individually controlled.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: March 22, 1994
    Assignee: Oil-Dri Corporation of America
    Inventors: Norman B. Gershon, David J. Truluck
  • Particulate sorbing and deodorizing mixtures containing synthetic and clay sorbents
    Patent number: 4459368
    Abstract: A particulate, water and oil sorbing composition is disclosed. The composition contains sorbent fuller's earth clay particles and sorbent synthetic particles, e.g. calcium sulfate dihydrate-containing granules, in a weight ratio of about 0.5:9.5 to about 4:6, respectively.
    Type: Grant
    Filed: January 20, 1983
    Date of Patent: July 10, 1984
    Assignee: Oil-Dri Corporation of America
    Inventors: Richard M. Jaffee, Norman B. Gershon