# US 12,000,619 B2 · Air filter and gasket for the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,000,619 B2 - Document ID: US12000619B2 - Status: Granted - Kind: B2 - Application number: 17/352,106 - Filed: 2021-06-18 - Published: 2021-12-23 - Granted: 2024-06-04 - Earliest claimed: 2020-06-22 - Assignees: Camfil AB - Applicants: Camfil AB - Inventors: Joseph John Gorman; Adam Sienkiewicz; Jonathan P. Albar - Web page: https://patentgrep.com/patent/US12000619B2 ## CPC - F24F 13/28: Arrangement or mounting of filters - B01D 46/0002: {Casings; Housings; Frame constructions} - B01D 46/0005: {Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence)} - B01D 46/001: {Means for connecting filter housings to supports} - B01D 46/10: Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces - B01D 46/521: {using folded, pleated material} - B01D 2271/022: Axial sealings - B01D 2271/027: Radial sealings - F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02) - 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) ## Abstract Disclosed herein are replaceable filter frame gaskets and air filters having the same. The gasket is secured elastically to a filter frame of the air filter, making the gasket easily reusable and removable from the air filter. ## Claims ### Claim 1 A replaceable air filter frame gasket, comprising: a rectangular ring shaped body having a top surface, a bottom surface, an inner perimeter, an outer perimeter and corners; a flange extending outward to the outer perimeter of the body along the entire outer perimeter, wherein the flange has cutaways at a corner of the gasket; a protrusion extending upward from the top surface; a mating portion extending from the bottom surface of the body extending continuously along the entire outer perimeter. ### Claim 2 (depends on 1) The replaceable air filter frame gasket of claim 1, wherein the protrusion is continuous around an entire length of the top surface of the body. ### Claim 3 (depends on 1) The replaceable air filter frame gasket of claim 1, wherein the mating portion has cross members. ### Claim 4 (depends on 1) The replaceable air filter frame gasket of claim 1, further comprising: a rib extending from the flange in a direction of the mating portion; and a key extending from the second surface, the key disposed in the corner of the gasket. ### Claim 5 (depends on 4) The replaceable air filter frame gasket of claim 4, wherein the rib and the key have a different cross-section profile. ### Claim 6 (depends on 4) The replaceable air filter frame gasket of claim 4, wherein the rib and the key have a hollow. ### Claim 7 (depends on 6) The replaceable air filter frame gasket of claim 6, wherein the hollow is not vented. ### Claim 8 (depends on 1) An air filter comprising: a rectangular filter frame having corners; filter media disposed in the filter frame; and the replaceable air filter frame gasket of claim 1 elastically secured to and extend outward of an outer perimeter of the filter frame. ### Claim 9 (depends on 8) The filter frame of claim 8, wherein the rectangular filter frame further comprises: a body wherein a downstream surface of the body has a channel and a recess. ### Claim 10 (depends on 9) The filter frame of claim 9, wherein the gasket further comprises: an elastic body having four corners, the elastic body comprising: a key configured to fit in the recess, wherein a horizontal profile of the key is shaped differently than that of the mating portion and the key does not fit in the channel. ### Claim 11 (depends on 10) The filter frame of claim 10, wherein the gasket has an enclosed hollow interior. ### Claim 12 (depends on 10) The filter frame of claim 10, wherein the gasket further comprises: a rib extending from the flange in a direction of the mating portion; and at least one rib corner in the corner of the gasket that extends along two walls of the outer perimeter. ### Claim 13 (depends on 10) The filter frame of claim 10, wherein the flange further comprises: a plurality of cutaways along the outer perimeter at a corner of the flange. ### Claim 14 (depends on 13) The filter frame of claim 13, wherein the plurality of cutaways are immediately adjacent the corners. ### Claim 15 A replaceable air filter frame gasket, comprising: a rectangular ring shaped body having a top surface, a bottom surface, an inner perimeter, an outer perimeter and corners; a flange extending outward to the outer perimeter of the body along the entire outer perimeter; a protrusion extending upward from the top surface; a mating portion extending from the bottom surface of the body extending continuously along the entire outer perimeter; and a rib extending from the flange in a direction of the mating portion. ### Claim 16 A air filter frame gasket, comprising: a rectangular ring shaped body having an inner perimeter, an outer perimeter and corners; a first flange extending outward to an outer perimeter of the body along an entire length of the body, where in the first flange has a pair of cutaways at the corners; and a protrusion extending upward from the top surface at an angle towards the inner perimeter. ### Claim 17 (depends on 16) The air filter frame gasket of claim 16, wherein the first flange is disposed approximate a centerline of a base portion of the rectangular ring shaped body. ### Claim 18 (depends on 17) The air filter frame gasket of claim 17, further comprising: a second flange extending outward from an outer perimeter of the body extending continuously along an entire length of the body, wherein the first flange is disposed approximate a first distal end of the base portion of the rectangular ring shaped body and the second flange is disposed approximate a second distal end of the base portion of the rectangular ring shaped body. ### Claim 19 (depends on 16) The air filter frame gasket of claim 16, wherein the angle of the protrusion is between about 30 degrees and about 90 degrees from the top surface.