Cuno, Inc.

Drew Willoughby

Ronald V Repetti

Donald Chanski

Frank Swiatek

Richard Leavitt, Deceased

Richard Leavitt

Removable filter cartridge assemblies (10) for housings (28) having a removable member (101, 130) to provide access to the interior (102, 136) of the housing and an inlet (108, 134) and an outlet (109, 135) to and from the interior thereof (102, 136) comprising at least one filter cell (12) through which fluids are passed for filtration, the cell having a central aperture (18) therethrough for the passage of fluid, separate from the fluid within the housing; opposed disks of filtration media (16), spaced apart and defining upper (16U) and lower (16L) surfaces of the cell emanating radially from the central aperture; and, an outer peripheral edge (14) circumscribing the cell; first and second retainer ring members (22) securably disposed on the upper and lower surfaces of said filter cell, open to and concentric with the central aperture, said first retainer ring members being contiguous with the outlet of the housing; and lifting means (42, 50, 80, 90) communicable with one of the retainer ring members for movement of the filter cell into and out of the filter housing. The present invention also provides a device for lifting and carrying a filter cell (12) comprising retainer ring members (22); and a lifting device (42, 50, 80, 90) in communication with said retainer ring members, as well as a device for lifting and carrying a filter cell (12) comprising an outer peripheral edge (14) provided by said filter cell; and a lifting device (70) in communication with said outer peripheral edge. The present invention also provides methods for the assembly of a cell-type filter cartridge device disposed within a filter housing and a method for removing a filter cell cartridge assembly from a filter housing.

Filter cells providing lifting means and related methods

Filter cartridge assemblies (10) comprising at least one filter cell (12) having an aperture (18) therethrough; a retainer ring (22) securably disposed on the filter cell and concentric with the aperture; and a lifting device (42, 50, 70, 80, 90) in communication with the retainer ring. A device for lifting and carrying a filter cell (12) comprising a retainer ring (22); and a lifting device (42, 50, 80, 90) in communication with the retainer ring. A method for the assembly of a cell-type filter cartridge device (10) comprising the steps of providing a filter housing (28) for at least one filter cell (12), the filter housing having a removable opening, an inlet and an outlet; providing at least one filter cell, the cell having an aperture (18) communicable with the outlet and a retainer ring (22) secured to the cell and providing a lifting device (42, 50, 80, 90); depositing the filter cell into the filter housing; and fastening the removable opening to the filter housing. A method for removing a filter cell cartridge assembly (10) from a filter housing (28) having a removable opening, an inlet and an outlet; the cartridge assembly providing at least one filter cell (12) having an aperture (18) communicable with the outlet and a retainer ring (22) in communication with the cell comprises the steps of detaching a section of the filter housing; securing a device for lifting (80) to the retainer ring; and lifting the filter cell out of the filter housing with the lifting device.

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Rocky Hill, CT, United States of America

Drew Willoughby