# US 2014/0197093 A1 · Filter segment with a light weight frame > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0197093 A1 - Document ID: US20140197093A1 - Status: Published application - Kind: A1 - Application number: 14/241,624 - Filed: 2012-08-25 - Published: 2014-07-17 - Earliest claimed: 2011-08-29 - Assignees: GL&V Luxembourg S.å.r.l. - Inventors: Karl Gabrielsson; Tony I. Bjorkenius; Gregory G. Gilmore - Web page: https://patentgrep.com/patent/US20140197093A1 ## CPC - B01D 35/28: Strainers not provided for elsewhere - B01D 33/23: Construction of discs or component sectors thereof - B01D 2201/0423: not in the inner side of the cylindrical filtering elements - B01D 2201/127: with means for keeping the spacing between the pleats - B01D 2201/40: Special measures for connecting different parts of the filter - B01D 2201/4015: Bayonet connecting means - D21C 9/06: in filters {; Washing of concentrated pulp, e.g. pulp mats, on filtering surfaces} - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - D21C: PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR ## Abstract A disc segment adapted to be attached to other disc segments to form a disc assembly, the disc segment including an isosceles trapezoid frame. The frame comprises a left side rail and a right side rail, and a plurality of spaced apart parallel horizontally extending ribs connected between the side rails. The frame defines a first disc side and an opposite second disc side, each disc side including a corrugated left bottom clamp list adjacent the left side rail and supported by the ribs, and a corrugated right bottom clamp list adjacent the right side rail and supported by the ribs. Each disc side also includes a corrugated wire mesh supported by the left and right clamp lists, and supported by the frame ribs. ## Claims ### Claim 1 A disc segment adapted to be attached to other disc segments to form a disc assembly, the disc segment including an isosceles trapezoid frame, the frame comprising a left side rail and a right side rail, a plurality of spaced apart parallel horizontally extending ribs connected between the side rails, the frame defining a first disc side and an opposite second disc side, each disc side including a corrugated left bottom clamp list adjacent the left side rail and supported by the ribs, and a corrugated right bottom clamp list adjacent the right side rail and supported by the ribs, a corrugated wire mesh supported by the left and right clamp lists, and supported by the frame ribs, a left corrugated top clamp list adjacent the left side rail and attached to the frame, sandwiching the wire mesh between the left bottom clamp list and the left top clamp list, and a right corrugated top clamp list adjacent the right side rail and attached to the frame, sandwiching the wire mesh between the right bottom clamp list and the right top clamp list. ### Claim 2 (depends on 1) A disc segment according to claim 1, wherein the disc segment further includes a plurality of spaced apart screws for attaching the clamp lists to the frame. ### Claim 3 (depends on 2) A disc segment according to claim 2, wherein the screws are self taping screws. ### Claim 4 (depends on 2) A disc segment according to claim 2, wherein a first screw is on a first disc side and attached to a rib, and a second screw is on the second disc side and is attached to the rib spaced apart from the first screw. ### Claim 5 (depends on 1) A disc segment according to claim 1, wherein the frame is made of plastic. ### Claim 6 (depends on 1) A disc segment according to claim 1, wherein the left side rail comprises an open rectangular frame. ### Claim 7 (depends on 6) A disc segment according to claim 6, wherein the disc segment further includes an outlet channel attached to the left side rail. ### Claim 8 (depends on 7) A disc segment according to claim 7, wherein the outlet channel is an elongated tube, the tube having a open side shaped to mate with the open rectangular frame of the left side rail, a closed end and an open end, the open end being adapted to be attached to a central hub so that filtrate can pass through the outlet channel to the central hub. ### Claim 9 (depends on 7) A disc segment according to claim 7, wherein the outlet channel is attached to the left side rail by the outlet channel tube further includes flanges with slotted openings, the flanges extending from the open side and being adapted to extend toward and around the left side rail, the left side rail including spaced apart protrusions from the open rectangular frame, coplanar with the frame, and aligned with the flange slotted openings, so that the outlet channel can be attached to the left side rail by having the protrusions enter the slotted openings, then travel along the slotted openings to a flat in the flange at the end of the slotted opening, where the outlet channel is then adjacent the left side rail, and fixed relative thereto. ### Claim 10 (depends on 6) A disc segment according to claim 6, wherein the respective clamp lists space the first disc side wire mesh from the second disc side wire mesh, forming an open area between the ribs, filtrate passing though the wire mesh being able to travel along the ribs and between the clamp lists to the left side rail. ### Claim 11 (depends on 1) A disc segment according to claim 1, wherein the right side rail comprises a solid rectangular frame. ### Claim 12 (depends on 1) A disc segment according to claim 1, wherein the disc segment includes a plurality of frames attached to one another, the assembled frames forming an isosceles trapezoid disc segment. ### Claim 13 (depends on 6) A disc segment according to claim 6, wherein the plurality of frames are attached to one another by providing the top of each frame side rail with a pin, and the bottom of each frame side rail with a tail, so that the frame pin can be placed within the tail. ### Claim 14 (depends on 1) A disc segment according to claim 1, wherein the disc segment further includes a top, and a bottom, each including a elongated member similar to one of the ribs, with ends extending at an angle to the elongated member, and having thereon one of a pin and a tail for mating with a complimentary structure on the frame side end. ### Claim 15 A disc segment adapted to be attached to other disc segments to form a disc assembly, the disc segment including an isosceles trapezoid frame, the frame being made of plastic and comprising a left side rail in the form of an open rectangular frame, and a right side rail in the form of a solid rectangular frame, a plurality of spaced apart parallel horizontally extending ribs connected between the side rails, the frame defining a first disc side and an opposite second disc side, each disc side including a corrugated left bottom clamp list adjacent the left side rail and supported by the ribs, and a corrugated right bottom clamp list adjacent the right side rail and supported by the ribs, a corrugated wire mesh supported by the left and right clamp lists, and supported by the frame ribs, a left corrugated top clamp list adjacent the left side rail and attached to the frame, sandwiching the wire mesh between the left bottom clamp list and the left top clamp list, and a right corrugated top clamp list adjacent the right side rail and attached to the frame, sandwiching the wire mesh between the right bottom clamp list and the right top clamp list, a plurality of spaced apart self taping screws for attaching the clamp lists to the frame. with a first screw on a first disc side and attached to a rib, and a second screw on the second disc side and is attached to the rib spaced apart from the first screw, and an outlet channel attached to the left side rail, the outlet channel being an elongated tube, the tube having a open side shaped to mate with the open rectangular frame of the left side rail. a closed end and an open end, the open end being adapted to be attached to a central hub so that filtrate can pass through the outlet channel to the central hub. ### Claim 16 (depends on 15) A disc segment according to claim 15, wherein the outlet channel is attached to the left side rail by the outlet channel tube further includes flanges with slotted openings, the flanges extending from the open side and being adapted to extend toward and around the left side rail, the left side rail including spaced apart protrusions from the open rectangular frame, coplanar with the frame, and aligned with the flange slotted openings, so that the outlet channel can be attached to the left side rail by having the protrusions enter the slotted openings, then travel along the slotted openings to a flat in the flange at the end of the slotted opening, where the outlet channel is then adjacent the left side rail, and fixed relative thereto. ### Claim 17 (depends on 15) A disc segment according to claim 15, wherein the respective clamp lists space the first disc side wire mesh from the second disc side wire mesh, forming an open area between the ribs, filtrate passing though the wire mesh being able to travel along the ribs and between the clamp lists to the left side rail. ### Claim 18 (depends on 15) A disc segment according to claim 15, wherein the disc segment includes a plurality of frames attached to one another, the assembled frames forming an isosceles trapezoid disc segment. ### Claim 19 (depends on 15) A disc segment according to claim 15, wherein the plurality of frames are attached to one another by providing the top of each frame side rail with a pin, and the bottom of each frame side rail with a tail, so that the frame pin can be placed within the tail. ### Claim 20 (depends on 15) A disc segment according to claim 15, wherein the disc segment further includes a top, and a bottom, each including a elongated member similar to one of the ribs, with ends extending at an angle to the elongated member, and having thereon one of a pin and a tail for mating with a complimentary structure on the frame side end.