Patents by Inventor Sam Frisch

Sam Frisch 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: 5788842
    Abstract: A separator for use with a fluidized-bed bioreactor. A lift draws a slurry of liquid, media and biomass from the fluidized bed. A biomass discharge is connected to the lift and located above the height of the fluidized bed for discharging excess biomass. A media discharge, also connected to the lift, discharges media from the slurry and returns the media to the fluidized bed.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: August 4, 1998
    Assignee: Envirogen, Inc.
    Inventor: Sam Frisch
  • Patent number: 5750028
    Abstract: A separator is provided for use with a fluidized-bed bioreactor. A lift draws a slurry of liquid, media and biomass from the fluidized bed. A biomass discharge is connected to the lift for discharging excess biomass. A media discharge, also connected to the lift, discharges media from the slurry and returns the media to the fluidized bed by means of a media return assembly.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: May 12, 1998
    Assignee: Envirogen, Inc.
    Inventor: Sam Frisch
  • Patent number: 4863498
    Abstract: A deaerator device for separating non-condensable gases from condensate. The device includes an upper deaerator stage means comprising a spray nozzle assembly which directs liquid particles under high velocity into a hood located thereabove. In the hood, the particles are raised to their saturation temperature by steam introduced into the device wherein the non-condensable gases are liberated from the condensate and vented to the atmosphere. Located below the nozzles is tray for receiving the condensed water. The tray has a plurality of openings which directs condensate into a lower deaerator stage consisting of a packing which removes substantially all of the non-condensable gases left in the condensate.
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: September 5, 1989
    Assignee: The Graver Company
    Inventors: Alfonse J. Soriente, Jay C. Crosman, Sam Frisch, Eli Salem