Patents by Inventor Harvey K. Cohen

Harvey K. Cohen 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).

  • Ultraviolet sterilizer
    Patent number: 4033719
    Abstract: An ultraviolet sterilizer for a recirculating water flow filter system in which the sterilizer includes a low power source of ultraviolet light. Means are employed to thin out an air-water recirculating sheet and the ultraviolet sterilizer is placed a small distance from the sheet in order to irradiate the mixture and create an ozone layer further sterilizing the recirculating mixture.
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: July 5, 1977
    Inventors: Arnold Conn, Harvey K. Cohen
  • Protein skimmer
    Patent number: 3965007
    Abstract: A protein skimmmer for use in an aquarium having a recirculating water flow system. The skimmer is for removing dissolved organic compounds from the water in the system by foam fractionation, the protein skimmer including a container for receiving a frothy scum of foam carried thereto by a connecting tube directly placed in the path of the recirculating water, the tube including a baffle system for creating upward pressure enhancing the lift of the foam to the container.
    Type: Grant
    Filed: September 17, 1973
    Date of Patent: June 22, 1976
    Inventors: Arnold Conn, Harvey K. Cohen