Patents Represented by Attorney Gordon K. Lister
  • Patent number: 3977514
    Abstract: A filter of the type having a movable perforate conveyor formed of a series of transverse bars and interconnecting links includes a filter medium supported on the top surface of the conveyor for movement therewith in a housing which cooperates with the conveyor and filter medium to form a pool of liquid to be filtered on the filter medium. Fixed sealing strips are located on opposite sides of the pool and bear against side edge portions of the filter medium to inhibit flow of liquid from the sides of the pool and means operatively connected to the perforate conveyor support the portions of the filter medium passing under the sealing strips. This supporting means comprises a series of clips, each of which has an upper surface substantially coplanar with the top surface of the conveyor and downwardly extending tab means for removably securing the clips to the conveyor.
    Type: Grant
    Filed: November 19, 1974
    Date of Patent: August 31, 1976
    Assignee: Clarkson Industries, Inc.
    Inventor: Frank R. Kaess
  • Patent number: D256999
    Type: Grant
    Filed: December 20, 1977
    Date of Patent: September 23, 1980
    Assignee: Alcar Industries
    Inventors: Anton Haagedoorn, Leonard Spinozza, Philip Merlin