Patents by Inventor John R. Schnieder

John R. Schnieder 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: 4738775
    Abstract: A device for use in combination with a plate-type liquid filter apparatus for extracting sheets of filter media from between adjacent plates is disclosed. The device comprises a series of horizontal trays connected to a frame and adapted to support sheets of filter media extending from an adjacent multi-plate filter apparatus. A contact bar is provided for and extends transversely to each sheet. All contact bars are connected at their opposite ends to a pair of vertical drive bars which are attached to drive chains that move the drive bars in a generally rectangular path so that the contact bars are first moved downward in unison to make frictional contact with the media sheets, then forwardly to move the sheets along on their support trays, then upwardly out of contact and back to the starting point on each extraction cycle.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: April 19, 1988
    Inventor: John R. Schnieder