Patents Assigned to Camfil AB
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Patent number: 12000619Abstract: 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.Type: GrantFiled: June 18, 2021Date of Patent: June 4, 2024Assignee: Camfil ABInventors: Joseph John Gorman, Adam Sienkiewicz, Jonathan P. Albar
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Patent number: 11878266Abstract: A heat resistant regenerable air filter assembly for an air supplying application an air permeable adsorbent panel (1) mounted in a frame (2), said panel comprising a heat resistant structure comprising a heat resistant porous adsorbent material for adsorbing molecular contamination and being configured to be regenerated by desorption, and said air filter assembly comprising a heat resistant sealing material (3) between the adsorbent panel and the frame, where the heat resistant sealing material is a carbon fiber felt material arranged between the air permeable adsorbent panel and the frame so as to fill the distance therebetween, thereby preventing leakage of unfiltered air through the heat regenerable air filter assembly; and a method (100) of regenerating the air filter assembly.Type: GrantFiled: February 23, 2022Date of Patent: January 23, 2024Assignee: Camfil ABInventors: Boon Han Lim, Cheah Wei Ng
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Patent number: 11376533Abstract: A clamping system (1) for mounting a filter housing (10) to a wall structure (20), said clamping system including a filter housing clamping flange (2) arranged on a front side of the filter housing (10), and being adapted to abut a front side (20a) of the wall structure (20); a first locking plate (4, 44) having a longitudinal direction (y), and including a locking plate clamping surface (5, 45) extending along a longitudinal side of the locking plate (4) and being adapted to abut a rear side (20b) of the wall structure (20); a first engagement component (3a, 43a) associated with a filter housing wall (11) on a distance from the filter housing clamping flange (2); and a puller (6), said locking plate being configured to cooperate with the puller (6) via an abutment surface (7) associated with the locking plate (4; 44) and being adapted to engage with a part of the puller (6), and said locking plate (4; 44) further being configured to cooperate with the first engagement component (3a, 43a) via a second engagemType: GrantFiled: March 24, 2020Date of Patent: July 5, 2022Assignee: CAMFIL ABInventor: Martin Molnár
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Patent number: 11338238Abstract: An aerosol distributor and an arrangement for filter leakage detection in a gas filtration system comprising such aerosol distributor, the aerosol distributor being configured to be positioned in a gas stream upstream of the filter, said aerosol distributor comprising: a housing comprising a primary chamber in fluid connection with two or more secondary chambers; the housing having an inlet for admitting a test aerosol from an aerosol source into the primary chamber and passages for releasing the test aerosol from the primary chamber into each of the secondary chambers; said secondary chambers being elongated and provided with a plurality of outlet holes along the length thereof for releasing the test aerosol from the secondary chambers into a gas stream surrounding the aerosol distributor; characterized in that the dimensions of the inlet, the primary chamber, the passages, the secondary chambers and the outlet holes are selected such that during operation, the pressure of the test aerosol in the primary chaType: GrantFiled: March 13, 2020Date of Patent: May 24, 2022Assignee: Camfil ABInventor: Axel Mahler
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Patent number: 11278921Abstract: An aerosol distributor for filter leakage detection in a gas filtration system, said aerosol distributor being configured to be positioned in a gas stream upstream of the filter, said aerosol distributor comprising: a rotatable distributor housing comprising a hub in fluid connection with two or more radial chambers evenly distributed around said hub, the distributor housing having an inlet for admitting a test aerosol from an aerosol source via the hub into the radial chambers, each radial chamber being elongated, sealed at a distal end, and provided with a plurality of outlet holes distributed along the length thereof for releasing the aerosol from the radial chamber into a gas stream surrounding the aerosol distributor, and wherein said aerosol distributor further comprises an actuator configured to rotate the distributor housing around a central axis thereof.Type: GrantFiled: June 13, 2019Date of Patent: March 22, 2022Assignee: Camfil ABInventor: Keith Woolard
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Patent number: 11237074Abstract: An aerosol distributor and an arrangement for filter leakage detection in a gas filtration system comprising such aerosol distributor, the aerosol distributor being configured to be positioned in a gas stream upstream of a filter, said aerosol distributor comprising: a hollow housing having at least one aerosol inlet for admitting an aerosol from an aerosol source into a chamber inside said housing, and a plurality of aerosol outlet holes for releasing the aerosol from the chamber into a gas stream surrounding the housing, wherein said housing has a plate like shape having an upstream surface configured to face an incoming gas stream and a downstream surface configured to face a filter, wherein said housing comprises a plurality of channels extending between channel inlets at the upstream surface and channel outlets at the downstream surface of the housing, such that gas from the gas stream can pass through the housing.Type: GrantFiled: March 12, 2020Date of Patent: February 1, 2022Assignee: Camfil ABInventor: Sven Petersen
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Patent number: 11148090Abstract: A pocket filter assembly with reduced risk for exposing a user to contaminations leaving the pocket filter assembly during and after removal of the pocket filter assembly from an installation is disclosed. A first pocket filter comprises a grip member configured to be gripped by the user to enable folding of the pocket filters in a controlled manner before removal of the pocket filter assembly from an installation.Type: GrantFiled: June 26, 2017Date of Patent: October 19, 2021Assignee: Camfil ABInventors: Fredrik Englund, Stefan Ericson
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Patent number: 10976065Abstract: The present invention relates to a system (40) for air filter management, the system comprising a plurality of air filter devices (41a,b) and an air filter control station (42). Each air filter device (41a,b) is provided at an air filter arrangement in an air flow inlet to an industrial installation and comprises at least one filter medium capable of removing particulate material and/or airborne molecular contamination, AMC, from an air flow received at the air flow inlet. Each air filter device comprises a set of sensors arranged to gather sensor data representative of an operating state of the air filter arrangement, a microprocessor and a communication unit. The air filter control station (42) comprises communication unit arranged to receive operating state information from the plurality of air filter devices and a user interface for selecting an air filter arrangement of an air filter device.Type: GrantFiled: February 22, 2017Date of Patent: April 13, 2021Assignee: Camfil ABInventors: Joshua Kohn, Richard Ringström
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Publication number: 20200306673Abstract: A clamping system (1) for mounting a filter housing (10) to a wall structure (20), said clamping system including a filter housing clamping flange (2) arranged on a front side of the filter housing (10), and being adapted to abut a front side (20a) of the wall structure (20); a first locking plate (4, 44) having a longitudinal direction (y), and including a locking plate clamping surface (5, 45) extending along a longitudinal side of the locking plate (4) and being adapted to abut a rear side (20b) of the wall structure (20); a first engagement component (3a, 43a) associated with a filter housing wall (11) on a distance from the filter housing clamping flange (2); and a puller (6), said locking plate being configured to cooperate with the puller (6) via an abutment surface (7) associated with the locking plate (4; 44) and being adapted to engage with a part of the puller (6), and said locking plate (4; 44) further being configured to cooperate with the first engagement component (3a, 43a) via a second engagemType: ApplicationFiled: March 24, 2020Publication date: October 1, 2020Applicant: Camfil ABInventor: Martin MOLNÁR
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Publication number: 20200289971Abstract: An aerosol distributor and an arrangement for filter leakage detection in a gas filtration system comprising such aerosol distributor, the aerosol distributor being configured to be positioned in a gas stream upstream of the filter, said aerosol distributor comprising: a housing comprising a primary chamber in fluid connection with two or more secondary chambers; the housing having an inlet for admitting a test aerosol from an aerosol source into the primary chamber and passages for releasing the test aerosol from the primary chamber into each of the secondary chambers; said secondary chambers being elongated and provided with a plurality of outlet holes along the length thereof for releasing the test aerosol from the secondary chambers into a gas stream surrounding the aerosol distributor; characterized in that the dimensions of the inlet, the primary chamber, the passages, the secondary chambers and the outlet holes are selected such that during operation, the pressure of the test aerosol in the primary chaType: ApplicationFiled: March 13, 2020Publication date: September 17, 2020Applicant: Camfil ABInventor: Axel Mahler
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Patent number: 10710014Abstract: A high efficiency air filter assembly (100) for high temperature applications including: a filter core (102) including a unitary sheet of air-permeable filter media folded in accordion fashion to form a plurality of side-by-side pleats with zig-zag edges on two opposite sides and flat panels on the other two sides, and a spacer member between opposing walls of successive pleats, a box-like metal frame (108) enclosing said filter core on four sides in air tight engagement to define an air flow opening extending between upstream and downstream sides of said assembly, wherein the zig-zag edges of the unitary sheet of air-permeable filter media are sealingly embedded in a solid inorganic sealant composition (118) in the frame, and wherein the unitary sheet of air-permeable filter media preferably consists of a binder-free glass or mineral fiber filter media.Type: GrantFiled: July 10, 2015Date of Patent: July 14, 2020Assignee: CAMFIL ABInventors: Fredrik Englund, Sverker Hugert
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Patent number: 10677690Abstract: A test probe for filter leakage detection. The test probe (1) has an elongated housing (5) with a longitudinal inlet portion for admitting gas into a first chamber of the housing through an inlet of the inlet portion, and an outlet portion for letting gas out of a second chamber of the housing through an outlet of the outlet portion. Further, the test probe has an intermediate element comprising a throttling portion. The intermediate element is arranged between the inlet portion and the outlet portion, wherein the first and second chambers are fluidly interconnected via the throttling portion, wherein the throttling portion is elongated and extends longitudinally of the housing, wherein the throttling portion is arranged to cause a smaller vacuum upstream of the throttling portion than downstream of the throttling portion when gas is sucked through the test probe.Type: GrantFiled: December 14, 2016Date of Patent: June 9, 2020Assignee: Camfil ABInventors: Axel Mahler, Richard Addington, Kenny Hedlund
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Patent number: 10532307Abstract: A filter housing is adapted to be mounted in an air ventilation system and includes: an upstream air entrance opening defined by an air entrance opening frame, a downstream air exit opening defined by an air exit opening frame, a rear wall, a front opening opposite to the rear wall, a cover sealing the front opening, a movable filter holder arranged within the housing and arranged to receive a filter through the front opening, and two clamping mechanisms arranged at opposite first and second walls of the housing. Each clamping device has a release device engaged with the filter holder, and is arranged for releasing the filter from the clamped position to a released position by moving the filter holder.Type: GrantFiled: May 11, 2016Date of Patent: January 14, 2020Assignee: Camfil ABInventor: Richard Addington
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Patent number: 10507420Abstract: The present invention relates to a molded plastic rectangular front plate for a V-type filter, said front plate having a front surface and a back surface, characterized in that the back surface of the front plate comprises a support structure protruding in a plane substantially perpendicular to the back surface of the front plate and extending along a major portion of the length of a side of the back surface of the front plate such that the thickness of the front plate in the direction from the front surface to the back surface is increased towards the middle and reduced towards the ends of the front plate side. The present invention further relates to a V-type filter frame and a V-type filter assembly comprising such a front plate.Type: GrantFiled: September 25, 2014Date of Patent: December 17, 2019Assignee: CAMFIL ABInventor: Mathieu Hugues
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Patent number: 10441911Abstract: The present invention relates to a V-type filter frame for receiving at least one filter media pack, said V-type filter frame being arranged to be mounted to a filter holding structure, the V-type filter frame comprising first and second side plates and a molded plastic rectangular front plate coupled to the side plates, said side plates each comprising a front edge portion and an opposite rear edge portion and the front plate having a front surface and a back surface, the back surface of the front plate comprising a first coupling portion comprising a first groove configured to receive the front edge portion of the first side plate, a second coupling portion comprising a second groove configured to receive the front edge portion of the second side plate, a trough for receiving a front edge of a filter media pack, extending between the first and the second coupling portion of the front plate, characterized in that said trough is in fluid connection with each of said first groove and said second groove when thType: GrantFiled: September 25, 2014Date of Patent: October 15, 2019Assignee: CAMFIL ABInventor: Mathieu Hugues
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Patent number: D860426Type: GrantFiled: November 29, 2017Date of Patent: September 17, 2019Assignee: CAMFIL ABInventors: Mathieu Hugues, Sverker Hugert
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Patent number: D864369Type: GrantFiled: November 29, 2017Date of Patent: October 22, 2019Assignee: Camfil ABInventors: Guillaume Gallet, Kenny Hedlund, Vincent Arun Kenadzir
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Patent number: D864370Type: GrantFiled: November 29, 2017Date of Patent: October 22, 2019Assignee: Camfil ABInventors: Guillaume Gallet, Kenny Hedlund, Vincent Arun Kenadzir
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Patent number: D893694Type: GrantFiled: November 29, 2017Date of Patent: August 18, 2020Assignee: Camfil ABInventors: Mathieu Hugues, Sverker Hugert
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Patent number: D980401Type: GrantFiled: June 28, 2021Date of Patent: March 7, 2023Assignee: Camfil ABInventor: Vincent Arun Kenadzir