Patents by Inventor Jack H. Eichler

Jack H. Eichler 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).

  • Pressure filter
    Patent number: 4528103
    Abstract: A pressure filter for separating a liquor from mud liquor slurry and for concentrating a filter cake as a heavy slurry discharge comprising a tank having a ring of filter elements supported by a plate which separates the filter tank from a filtrate chamber. The feed enters the tank under pressure through an enlarged feed cylinder tube located in the center of the ring of filter elements. In the backwashing mode of operation the feed rate is maintained or increased to assist in displacing filter cake from the filter elements.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: July 9, 1985
    Assignee: Dorr-Oliver Incorporated
    Inventors: Gordon Spilkin, Jack H. Eichler, Peter Kos
  • Rake lifting means for sedimentation apparatus
    Patent number: 4462908
    Abstract: A motorized lifting mechanism for the rake arms of a sedimentation tank which comprise spaced vertical pairs of pivot link arms interconnecting the rake arm frame to a main center rake arm drive cage and wherein the rake arm frame is in turn interconnected to a motorized jack lifting screw by means of a cable to raise the arm upon the pivoting of the pivot arms.
    Type: Grant
    Filed: October 25, 1982
    Date of Patent: July 31, 1984
    Assignee: Dorr-Oliver Incorporated
    Inventors: Jack H. Eichler, Stephen A. Landsman
  • Electrode assembly
    Patent number: 4303492
    Abstract: An electrode assembly for use in dewatering a suspension of solids in which an electric field augments an applied vacuum includes a chamber having ion-pervious walls on which a cake of solids is deposited and an electrode element within the chamber immersed in an electrolyte; the surface area of the ion-pervious walls being substantially greater than the surface area of the electrode element.
    Type: Grant
    Filed: January 4, 1980
    Date of Patent: December 1, 1981
    Assignee: Dorr-Oliver Incorporated
    Inventors: Jack H. Eichler, Mark P. Freeman, William A. Salancy