公开(公告)号：US3722682A

公开(公告)日：1973-03-27

申请号：US3722682D

申请日：1971-08-11

Applicant: PISTINER I

Inventor： PISTINER I

IPC: B01D29/00 ,  B01D29/02

CPC classification number: B01D29/09 ,  B01D2201/64

Abstract: A self contained liquid filtering apparatus has been provided. A filtering chamber is provided at the top of an elongated frame structure and this frame structure supports also toggle actuated devices for opening and closing end gates at the open ends of the filtering chamber in order to permit the advancing of a filtering sheet that is taken from a roll supported upon the frame and is drawn by a motorized roller through the end openings of the filtering chamber upon the end gates being lifted by toggle devices. The dirtied paper is drawn from the filtering chamber and disposed of in a tray lying within the frame structure of the apparatus arranged to receive drippings from one end opening of the filtering chamber and the drippings from the other end of the filtering chamber are delivered to the tray by an inclined drain plate. An evacuating apparatus is provided within the frame structure for removing the liquid from the filtering chamber prior to the opening of the end gates and the advancing of the filtering paper from its roll and adapted to return the liquid to the filtering chamber when the new filter area has been provided. The filtered liquid removed from the filtering chamber may be collected in a tank and returned to the filtering chamber so as to be refiltered. Fluid cylinder devices are used for the actuation of the toggle gate operating mechanisms and for the evacuating cylinder device appropriate valves are used in the liquid pipelines to control the flow of the liquid into and out of the filtering chamber. A pushbutton control box is mounted on one end of the frame structure and can control the various fluid cylinder control valves of magnetic type and the liquid control valves may similarly be controlled electrically.