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| Number | Title | Issue Date |
| 7371267 | Wire filter cage An improved filter support structure for supporting filter media. The support structure includes two sections removably coupled together with an improved coupling assembly. The first section has a cross section presenting a first width spaced apart from a second wid... | 05/13/2008 |
| 7303605 | Snap together filter A fluid filter is provided with a snap-together housing for the filter media. The housing is designed with two main parts that are easily snapped together to encapsulate the filter media. The filter housing is substantially cylindrical, and contains an inlet on one ... | 12/04/2007 |
| 7294163 | Cartridge filter A cartridge filter has a unitary upper fitting and a separate gasket which permits a single base filter to be used with a wide range of tube sheet openings, simply by selecting the appropriate gasket. In one embodiment, the gasket is bonded to the unitary upper fitt... | 11/13/2007 |
| 7287575 | Component for supporting a filter member, a device including a tubular filter member and said component, a plate heat exchanger including a tubular filter member and said component The invention relates to a component (20) for supporting a tubular filter member (15) in a portable channel (2) in a plate heat exchanger (1). The invention also relates to a device including the component (20) and the filter membe... | 10/30/2007 |
| 7282075 | Z-filter media with reverse-flow cleaning systems and methods A method for cleaning a filter having Z-media includes providing a filter having Z-media and cleaning the media construction by directing a pulse of compressed gas into the media construction through the downstream flow face. Filter elements useable with such method... | 10/16/2007 |
| 7258709 | Vacuum cleaner bag docking assembly An improved bag docking assembly for aligning a vacuum bag for engagement with a dirty air outlet nozzle on a vacuum cleaner, and for retaining the vacuum bag in the position of engagement. The assembly incorporates an anchor member and a mounting member. The anchor... | 08/21/2007 |
| 7186284 | Filter mounting system A filter mounting system for use in a baghouse having a tubesheet with a plurality of openings. The filter mounting system includes filter media and a tubular mounting collar attached to the filter media to mount the filter media relative to the tubesheet. The filte... | 03/06/2007 |
| 7118607 | Filter stop for a vacuum cleaner A filter stop for a vacuum cleaner contains a dust chamber that is closable with a lid and receives a dust bag with a reinforcement plate in a specific fitting position. The filter stop has a base plate that is movable between two stopping positions parallel to the ... | 10/10/2006 |
| 7024724 | Vacuum, cleaner bag docking assembly An improved bag docking assembly for aligning a vacuum bag for engagement with a dirty air outlet nozzle on a vacuum cleaner, and for retaining the vacuum bag in the position of engagement. The assembly incorporates an anchor member and a mounting member. The anchor... | 04/11/2006 |
| 6966444 | Filter with snap-fit filter bag A filter element includes a bag ring which is snap fitted into the filter vessel sidewall and retains both the filter element and a filter basket in the desired location in the vessel until removed. ... | 11/22/2005 |
| RE38842 | Vacuum cleaner bag docking assembly For use with vacuum cleaner bags of the type having a substantially rigid collar surrounding the bag opening, and with vacuum cleaners of the type having a dirty air outlet nozzle, a vacuum bag docking assembly is shown and described. The assembly incorporates an an... | 10/25/2005 |
| 6955700 | Snap together filter A fluid filter is provided with a snap-together housing for the filter media. The housing is designed with two main parts that are easily snapped together to encapsulate the filter media. The filter housing is substantially cylindrical, and contains an inlet on one ... | 10/18/2005 |
| 6905529 | Wire Filter cage An improved filter support structure for supporting filter media. The support structure includes two sections removably coupled together with an improved coupling assembly. The first section has a cross section presenting a first width spaced apart from a second wid... | 06/14/2005 |
| 6858052 | Filter cartridge mounting structure A filter cartridge for use in a baghouse having a tubesheet with a plurality of opening. A flexible snapband is biased towards engagement with a surface defining one of the openings in the tubesheet and is adapted to receive a portion of the filter cartridge. The sn... | 02/22/2005 |
| 6802879 | Vacuum collection bag and method of operation The present invention is an improved vacuum collection bag for vacuum cleaners and other appliances. By employing an impermeable bag and an air-permeable particle separator together with a tight seal against a vacuum system dirt tube in place of a conventional paper... | 10/12/2004 |
| 6790250 | Wire filter cage An improved filter support structure for supporting filter media. The support structure includes two sections removably coupled together with an improved coupling assembly. The first section has a cross section presenting a first width spaced apart from a second wid... | 09/14/2004 |
| 6786947 | Washable cloth vacuum cleaner filter bag having a resealable opening for emptying vacuumed debris A washable cloth vacuum cleaner filter bag for use on wet/dry vacuum cleaners and in central vacuum cleaner systems includes a first opening for receiving vacuumed debris, means for attaching the first opening to the inlet of the vacuum cleaner or system, and a seco... | 09/07/2004 |
| 6726735 | Unitary filter cartridge A filter cartridge having a unitary construction with a pleat pack filter formed securely about an interior screen for installation in the tube sheet of a baghouse. Opposite ends of the pleat pack are integrally received within a bottom end cap and an upper fitting.... | 04/27/2004 |
| 6716262 | Mounting collar for a filter bag A mounting collar is for supporting a vacuum cleaner filter bag in a mounted condition over a vacuum cleaner fill tube. The fill tube has a cylindrical outer surface. A panel of the mounting collar is configured to be attached to the filter bag. The panel has a firs... | 04/06/2004 |
| 6626970 | Wire filter cage An improved filter support structure for supporting filter media. The support structure includes two sections removably coupled together with an improved coupling assembly. The first section has a cross section presenting a first width spaced apart from a... | 09/30/2003 |
| 6299662 | Filter cartridge Filter cartridge for insertion in a cartridge opening in a plate, where the filter cartridge includes a predominantly cylindrical filter and an outer, annular collar which is made of an elastomer or rubber, which seals against the predominantly cylindrica... | 10/09/2001 |
| 6277165 | Vacuum cleaner bag An improved vacuum cleaner bag with a mechanism for allowing the user to visually align the coupling opening of the vacuum cleaner bag with the discharge tube of a vacuum cleaner. The vacuum cleaner bag also includes a discharge tube receiving structure p... | 08/21/2001 |
| 6224645 | Dust separator A dust separator for a vacuum cleaner, in which the bag is sealingly connected to a rigid member that screens-off an air-flow passageway through the vacuum cleaner and has an opening with which the bag connects. The screening member is separate from the b... | 05/01/2001 |
| 6179888 | Hybrid filter bag assembly A filter bag assembly of hybrid construction is disclosed that reduces the height of the filter bag assembly as well as its overall cost. The assembly indicates an elongated filter body portion, an end cap closing at one end of the filter body, a collar d... | 01/30/2001 |
| 6136056 | Connection member for a filter bag for vacuum cleaning equipment A connection member for a filter bag for vacuum cleaning equipment. The member has a base with two superposed base layers of stiff material which together define a first passage opening. A slide element, located between the two layers of the base, has a s... | 10/24/2000 |
| 6086649 | Holder for a vacuum cleaner dust bag A holder (10) for a vacuum cleaner dust bag which is removably arranged in the vacuum cleaner and includes a sleeve (14) on which an open end (13) of the bag (11) is received. Two or more clamping blocks (17) at least partly surround the sleeve and can be... | 07/11/2000 |
| 6033451 | Vacuum cleaner bag docking assembly For use with vacuum cleaner bags of the type having a substantially rigid collar surrounding the bag opening, and with vacuum cleaners of the type having a dirty air outlet nozzle, a vacuum bag docking assembly is shown and described. The assembly incorpo... | 03/07/2000 |
| 6007594 | Multiple use disposable vacuum cleaner bag A disposable reusable vacuum cleaner bag for a vacuum cleaner of the home appliance type is disclosed. The vacuum bag has an inlet for receiving materials from the vacuum cleaner, an apparatus for attaching the bag to the vacuum cleaner, and a resealable ... | 12/28/1999 |
| 5964909 | Filter cartridge sealing method The present invention is directed to a filter cartridge that provides for a secure dust tight seal and is easily inserted and removed from a filtration unit. The filter cartridge includes a cartridge unit having a filter element, a bottom cap and a top bo... | 10/12/1999 |
| 5792224 | Connector system A connector system is disclosed for providing a connection between a tubular connector having external projections and a mounting collar having a hole with internal notches, for receiving the projections and securing them upon rotation. The connector open... | 08/11/1998 |
| 5785724 | Profiled resilient band for securing filier bag A filtering apparatus has a bag or sleeve connected to a profiled resilient band (10, 20). The band is operative to sealing engage an aperture (13, 16) in a further body (16, 27). The profiled band (10, 20) has a one piece construction.... | 07/28/1998 |
| 5730766 | Non-round unitary filter cartridge A non-round unitary filter cartridge according to the present invention is provided having a unitary structure with pleated filter media formed securely about a perforated interior core. Opposite ends of the pleated filter media and perforated core are in... | 03/24/1998 |
| 5725621 | Filter end cap attachment A filter system utilizing a coalescing-type filter element with an end cap which snap locks into a filter system. One embodiment includes elongated snap lock arms. Another embodiment includes shortened arms. A third embodiment includes a snap lock ring. T... | 03/10/1998 |
| 5688298 | Self-aligning, self-sealing vacuum bag A vacuum bag for use with a vacuum device having a dirty air vacuum inlet has a conventional self-sealing collar including a pair of apertured planar panels, an apertured resilient membrane therebetween, and a finger extending at least partially across th... | 11/18/1997 |
| 5672273 | In-line filter with flange seal A filter arrangement which is employed in a fluid conduit is formed of a filter formed of a permeable filter material connected to a flange seal having an annular portion for engaging with and coupling to the permeable filter medium, and a planar portion ... | 09/30/1997 |
| 5613989 | Self-aligning self-sealing vacuum bag A vacuum bag for use with a vacuum device having a dirty air vacuum inlet has a conventional self-sealing collar including a pair of apertured planar panels, an apertured resilient membrane therebetween, and a finger extending at least partially across th... | 03/25/1997 |
| 5472465 | Filter bag for a vacuum cleaner A vacuum cleaner filter bag has a connection member, whose side edge parts are adapted to be inserted into holding grooves in the vacuum cleaner. A substantially tabular or plate-like, board-like, stiff main body of the connection member possesses a fitti... | 12/05/1995 |
| 5472460 | Filter bag for vacuum cleaners A vacuum cleaner filter bag has a connection member with an essentially tabular, board-like, stiff main body, which has a fitting opening for fitting on a vacuum cleaner connector tube. The main body guides a closing slide with a passage opening, which by... | 12/05/1995 |
| 5468272 | Filter bag for vacuum cleaners A filter bag for a vacuum cleaner possesses a substantially plate-shaped connection member with a stationary two-part base body and a sliding door arranged between the two layers of the base body. The layers of the base body have aligned passage openings ... | 11/21/1995 |
| 5468271 | Dust filter bag for a vacuum cleaner A dust filter bag for a vacuum cleaner, having a holding plate (1) of a cardboard paper material, which holding plate (1) has a sealing-closable opening (9) for a suction pipe of a vacuum cleaner, the opening (9) being adapted to be closed from the outsid... | 11/21/1995 |
