| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 055504000 | Aligned stop, media and removable retainer | 8 |
| 20090320425 | Air Filter Unit having a Radially Divided Housing - In a filter element ( | 12-31-2009 |
| 20100037575 | Rotate-Once Outlet fitting for a Filter Housing - A filter apparatus includes a filter housing having at least one opening and a plurality of retention tabs positioned proximate to at least one of the openings and secured to the filter housing. Also included is a connection fitting having a tube segment sized and configured to be received into at least one opening of the filter housing, orientation tab or tabs secured to the connection fitting and positioned to be engageable between a portion of the plurality of retention tabs when in the installed position. A retention flange extends radially from the tube segment and is configured to retentively engage with the retention tabs to secure the connection fitting to the filter housing. The connection fitting is rotatable when the tube segment is received into the filter housing but is then rotationally locked relative to the filter housing when in the installed position. | 02-18-2010 |
| 20100115898 | FILTER MOUNTS FOR A PORTABLE FAN AND METHODS FOR MOUNTING A FILTER TO A PORTABLE FAN - A filter frame is removably attachable to a box fan. The filter frame is adapted for receiving a standard HVAC-style filter for removing contaminants from air flow induced by the fan. In this manner, a cost-effective means for filtering a flow of air is provided for residential and commercial settings. The filter frame is adaptable to a variety of standard box fan types of different styles and dimensions. The frame is configured to accommodate standard filters, such as those readily available from retail hardware stores and home centers. | 05-13-2010 |
| 20100154372 | FILTER ASSEMBLY - A filter assembly for removing material entrained in a fluid stream, comprises a housing for a filter element, having a head part and a body part for receiving a filter element, and inlet and outlet ports for the fluid that is to be filtered. The head part and the body part each have engagement formations which enable the head and body parts to be connected to one another and separated by relative rotation about an axis which is coaxial with a head axis and a body axis. Head and body part keying formations can be provided in the form of at least one recess which is provided in a rib on one of the head and body parts, and at least one projection which is provided on the other of the head and body parts. The keying formations require alignment of the head and body axes for initial assembly of the head and body parts when the projection is can be received in the recess in the rib so as to restrict relative rotation of the head and body parts, and so that the head and body parts can then to be moved to an assembly position in which the projection has passed through the rib so that the head and body parts can be rotated relative to each other to allow the engagement formations to become engaged to one another. | 06-24-2010 |
| 20110094198 | Fixed frame HVAC adjustment rack for standard sized filters - A fixed air filter rack apparatus for non-standard sized HVAC units is disclosed. The main embodiment of the fixed filter rack apparatus consists of two piece construction and is made to fit standard sized commercially available filters. The fixed rack apparatus is inserted into the filter slot of the air handler and permanently attached via a single screw or bolt. The standard sized filter is then inserted into the filter rack apparatus such that it makes a seal between the filter and the frame. | 04-28-2011 |
| 20120291409 | SYSTEM AND METHOD FOR SECURING GAS TURBINE AIR FILTERS - A gas turbine air filter system includes a frame and at least one guide attached to the frame. A first lever is attached to the frame and can pivot with respect to the frame to engage a first filter. A second lever is attached to the frame and can pivot with respect to the frame to engage a second filter. A method for securing gas turbine air filters includes inserting a first filter into a frame inside at least one guide and pivoting a first clamp connected to the frame to engage at least a portion of the first clamp with the first filter. The method further includes inserting a second filter into the frame inside the at least one guide and pivoting a second clamp to engage at least a portion of the second clamp with the second filter. | 11-22-2012 |
| 20140150388 | FILTERING UNIT AND RELATIVE FILTERING CARTRIDGE - A filtering unit ( | 06-05-2014 |
| 20140245710 | TOOL-LESS AUTO-ALIGNING FILTER RETENTION SYSTEM - A filter retention system for releasably retaining a filter cartridge in an operable position within air supply and air exhaust systems is comprised of a filter cartridge, filter retainers, mounting frame with integral sealing knife edge and filter alignment brackets. The filter retainers allow for installation and removal of the filter cartridge without the use of tools. The retention system automatically aligns filter cartridges such that an airtight seal is created between the sealant containing groove in the filter cartridge and the sealing knife edge of the retention system. | 09-04-2014 |
