CAMFIL FARR, INC. Patent applications |
Patent application number | Title | Published |
20140260981 | ROOMSIDE REPLACEABLE FAN FILTER UNIT - Embodiments described herein relate to roomside replaceable fan filter units. In one embodiment, a roomside replaceable fan filter unit includes a housing having a filter receiving aperture and an air inlet, an aerosol injector, and a fan filter unit. The fan filter unit is coupled to the housing between the aerosol injector and the filter receiving aperture. In another embodiment, a roomside replaceable fan filter unit includes a housing having a sidewalls and a top wall that define an interior volume, an air inlet formed in the top wall, and a filter receiving aperture disposed opposite the top wall. The roomside replaceable fan filter unit also includes a fan filter unit disposed in the interior volume between the air inlet and the filter receiving aperture. The roomside replaceable fan filter unit includes an aerosol injector disposed upstream of the fan filter unit in the interior volume. | 09-18-2014 |
20140131539 | FILTER HOLDING FRAME WITH ADJUSTABLE CLAMPING MECHANISM AND SLOT FOR PRE-FILTER - Embodiments of the invention generally provide a filter frame assembly adapted for clamping in a housing is provided. The frame assembly includes a frame having a downstream frame member coupled to a cross-member, the downstream frame member and cross-member adapted to fit within the housing. At least two clamp mechanisms are coupled to frame assembly. Each of the clamp mechanisms include a rotatable rod coupled to a handle which is used to displace the frame assembly. The handle is configured to be clear of a filter receiving aperture defined above the cross-member when the handle is in both of an open or a closed position. | 05-15-2014 |
20140115852 | INTEGRATED CONTAINMENT SYSTEM - Embodiments of the invention generally provide a containment system having integrated bubble tight-dampers. In another embodiment, the containment system includes an integral auto-scan mechanism disposed in the housing of the containment system so that a filter element, disposed in the housing, may be leak tested without accessing the interior of the housing. In yet another embodiment, a method for testing a filter disposed in a containment system includes challenging an upstream side of a filter element disposed in a housing of the containment system with a test aerosol, and automatically moving a probe disposed within the housing to obtain samples for leak testing. | 05-01-2014 |
20140053634 | ALTERNATE INLET FIELD TESTING APPARATUS - Embodiments of the invention provide a containment system having a primary air inlet and an alternate inlet. In one embodiment, a containment system includes a housing configured to retain a main filter, the housing having a primary air inlet and an access door configured to access an interior of the housing. The access door has an alternate airflow inlet. In another embodiment, an air distribution plate includes a front surface having a first edge and an opposing second edge, wherein the front surface is configured to allow air to pass therethrough. Flow resistance through the front surface is greater proximate the second edge relative the first edge. In yet another embodiment, a method for testing a filter includes closing a damper and flowing air into a containment housing through an inlet formed though an access door and across an air distribution plate to a filter, and testing the filter. | 02-27-2014 |
20130291504 | HOLDING FRAME ASSEMBLY AND FLEXIBLE RETAINERS FOR SAME - A flexible filter retainer and a holding frame assembly having a flexible retainer are provided. In one embodiment, the flexible filter retainer for the holding frame comprises a flat body extending from a first end to a second end. The body comprises a bowed shaped retaining portion disposed at the first end and comprises a first strip and a top face. The body also comprises a fixed portion disposed at the second end and comprises a second strip. The first and second strips are linearly aligned and laterally offset from the top face. In another embodiment, a filter holding frame assembly comprises a holding frame and flexible filter retainers coupled to the holding frame. Each retainer comprises a flat body extending from a first end to a second end. The body comprises a retaining portion disposed at the first end and a fixed portion disposed at the second end. | 11-07-2013 |
20130291502 | FILTER HOLDING FRAME WITH FILTER GASKET - In one embodiment, a filter holding frame assembly includes a frame having a plurality of walls forming a quadrilateral ring and a gasket. The frame has a plurality of flanges, and each flange is coupled to a respective one of the walls and extends into the ring. The gasket has a connection portion coupled to a sealing portion. The connection portion has a substantially u-shaped cross-section coupled to the flange. The sealing portion has a flexible sealing element that extends away from the connection portion. In another embodiment, a gasket includes a connection portion coupled to a sealing portion. The connection portion has a substantially u-shaped cross-section configured to receive a filter holding frame and includes a bottom. The sealing portion comprises a first flexible sealing element that extends outwards from the connection portion. The bottom of the connection portion does not extend to the end of the sealing portion. | 11-07-2013 |
20130167493 | V-BANK FILTER ASSEMBLY WITH REPLACEABLE FILTERS - A V-bank filter assembly and a replaceable air filter are provided. In one embodiment, the V-bank filter assembly includes a top panel and bottom panel coupled in a spaced apart relation, each of the top and bottom panels having a first edge and a second edge, a plurality of panel end seal struts extending between the top and bottom panels, each panel end seal struts having a first mating sealing feature facing the first edge of the top and bottom panels, the first mating sealing feature configured to sealingly engage a replaceable filter panel, wherein the plurality of panel end seal struts are located adjacent the second edge, and a plurality of filter panel receiving tracks defined between the top and bottom panels configured to align filter panels disposed in the tracks with a respective first mating sealing feature. | 07-04-2013 |
20130091678 | INTEGRATED CONTAINMENT SYSTEM - Embodiments of the invention generally provide a containment system having integrated bubble tight-dampers. In another embodiment, the containment system includes an integral auto-scan mechanism disposed in the housing of the containment system so that a filter element, disposed in the housing, may be leak tested without accessing the interior of the housing. In yet another embodiment, a method for testing a filter disposed in a containment system includes challenging an upstream side of a filter element disposed in a housing of the containment system with a test aerosol, and automatically moving a probe disposed within the housing to obtain samples for leak testing. | 04-18-2013 |