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| Number | Title | Issue Date |
| 7611554 | Collector bag for vacuumed soil and lawn debris The collector bag is provided that includes a fabric formed to define an internal volume, a plurality of sewn loops for disposal about an outer periphery of the collector frame, and a gather of fabric at each of the plurality of sewn loops for disposal about an inne... | 11/03/2009 |
| 7332005 | Filtration bag replacement system for a floor care appliance A floor care appliance such as a vacuum cleaner is provided having an filtration bag changing assembly located in the filtration compartment. A supply of filtration material is packaged in a container in the form of a continuous tube to be fed into the filtration co... | 02/19/2008 |
| 7309369 | Filter module The invention relates to a filter module in the form of a hollow body with at least one chamber. The walls of the hollow body are made of a non-metallic material that can be comminuted and/or disintegrated in a recycling process. The material is a paper product, suc... | 12/18/2007 |
| 7291194 | Intermittent mixer with low pressure drop A thermal mixer reduces the temperature of flue gas supplied to a fabric filter. Two spray dry absorbers are operable to cool flue gas. A housing of the mixer has first and second inlet passages for gas from the absorbers, an outlet passage for gas to the fabric fil... | 11/06/2007 |
| 7291195 | Durable filter cage for air-moving system The disclosure provides a system having a cage mounted in an air-moving system, such as a wet and dry vacuum cleaner, which provides energy-absorbing structural ribbing for a more robust cage. The energy-absorbing ribs can tolerate impacts better than the relatively... | 11/06/2007 |
| 7288128 | Intermittent mixer with low pressure drop A thermal mixer reduces the temperature of flue gas supplied to a fabric filter. Two spray dry absorbers are operable to cool flue gas. A housing of the mixer has first and second inlet passages for gas from the absorbers, an outlet passage for gas to the fabric fil... | 10/30/2007 |
| 7260868 | Simple dust collector A simple dust collector includes a housing, a base plate horizontally separating the interior of the housing to form a motor chamber for fix a motor to rotate a fan covered by a fan cover under the base plate. A sucking passageway and a wind-exhausting hole are form... | 08/28/2007 |
| 7238223 | Acoustical stimulation of vapor diffusion system and method An apparatus for removing constituents from a fluid stream is provided. The apparatus includes a duct, a collection device, a sorbent injector, and an acoustic generator. The duct has a fluid passageway to receive a fluid stream having constituents. The collection d... | 07/03/2007 |
| 7208025 | Method and apparatus for filtering air passages in an alternator A filter to clean the air entering an alternator in a vehicle used in a dirty environment such as a crop harvesting machine includes a mesh filter which is coupled to an air intake of the alternator. The filter is constructed of a mesh material which is flexible and... | 04/24/2007 |
| 7107646 | Industrial oil/dust collector An industrial oil/dust collector is provided with a base, a motor and an air blower are installed on the exterior of the base, an air-inlet pipe and an air-outlet pipe are provided at the front of the motor to carry out quick suction and drainage functions, and insi... | 09/19/2006 |
| 7087160 | Outside-in flow engine and transmission filter and method A suction-side transmission or engine filter includes a filter bag assembly having an outlet portion and a media bag enclosing an inner support structure, the filter bag assembly is contained at least partially within a housing having an outlet port. The outlet port... | 08/08/2006 |
| 6946011 | Intermittent mixer with low pressure drop A thermal mixer reduces the temperature of flue gas supplied to a fabric filter. Two spray dry absorbers are operable to cool flue gas. A housing of the mixer has first and second inlet passages for gas from the absorbers, an outlet passage for gas to the fabric fil... | 09/20/2005 |
| 6932857 | Multi-stage collector and method of operation A multi-stage collector of the type used to collect particles from industrial gas. The collector can contain multiple narrow and wide zones formed by a plurality of parallel corrugated plates. Contained in the narrow zones can be elongated electrodes with sharp lead... | 08/23/2005 |
| 6902594 | Industrial dust-collector An industrial dust-collector is provided with an air blower in the bottom of the base. An air-inlet line and an air-out line are provided at the front of the air blower. A cover is provided on the top of the base, a sucking pipe is provided at the top of the cover, ... | 06/07/2005 |
| 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 |
| 6583072 | Fabric from impregnated polyphenylene sulfide fibers A nonwoven fabric is formed of polyphenylene sulfide fibers impregnated with a synthetic resin by 5 to 50 wt % based on the total weight of the nonwoven fabric, and has stiffness based on the Gurley method specified in JIS L 1096 of 3000 to 10000 mgf, and... | 06/24/2003 |
| 6537337 | Air filter for extraction apparatus A filter for air extraction apparatus is disclosed, which is assembled from a porous material arranged to collect contaminants. The filter comprises a bag with a constricted inlet for receiving contaminated air. The bag is formed from a plurality of envel... | 03/25/2003 |
| 6379408 | Mounting and closure structure for a bag, such as a vacuum cleaner bag A sealable debris bag includes a bag body having an opening, and a plate member attached to the bag body proximate the opening. First and second portions of the plate member are pivotable along a fold-line so that the first portion is engageable with the ... | 04/30/2002 |
| 6348078 | Vacuum cleaner output duct extension An output duct extension for attachment to an upright vacuum cleaner output sleeve or collar. The output duct extension is constructed to be insertable into the paper fill tube of a disposable paper filler bag. The output duct extension is of a longitudin... | 02/19/2002 |
| 6342084 | Vacuum cleaner A vacuum cleaner apparatus (10) is provided which includes a vacuum motor (16), an air pervious membrane (26) and an air pervious material collection bag (22). The vacuum motor (16) is arranged to draw air downwardly in turn through the bag (22), the memb... | 01/29/2002 |
| 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 |
| 6199602 | Large drums for high-dispersion, high air content solids, and a method for filling them A large drum for containing high dispersion, high air content solids for repeated filling and emptying by means of vacuum filling plants and a method for filling them. The drums consist of at least two layers, an inner layer consisting of uncoated air-per... | 03/13/2001 |
| 6156086 | Dual media vacuum filter bag There is provided a vacuum cleaner filer bag including at least two sidewalls which sidewalls are joined by seams. At least one first sidewall comprises a film laminate of a heat sealable film layer and a film support layer. At least one second sidewall c... | 12/05/2000 |
| 6074449 | Filter material containing a polycyanoaryl ether Provided is a filter favorably used in high-temperature long-term exposure conditions, for example, in coal boilers, cupola furnaces for steel and cast iron production, cement kilns, aggregate drying furnaces, furnaces for non-iron metals, etc. For the fi... | 06/13/2000 |
| 5974626 | Collection system for a floor polishing machine A dust collection/control system is disclosed utilized in a floor polishing machine (10) in the most preferred form. A polishing member (16) for maintaining a floor surface as it is moved along the floor is located and rotated within a housing or shield (... | 11/02/1999 |
| 5792225 | Dust and lint collection device The present invention relates to a dust and lint collection device. The device is utilized in the collection and disposal of lint, dust or other such material. In its broadest context, the present invention includes a collection sleeve which is adapted fo... | 08/11/1998 |
| 5766282 | Filtering bags with bag filter labels Filtering bags manufactured with materials selected to withstand specific conditions of service which include labels made of materials resistant to such conditions of service which have markings resistant to such conditions of service for the life of the ... | 06/16/1998 |
| 5690710 | Self-cleaning filter A cloth bag filter is formed with a generally cylindrical porous sidewall through which a vacuum is drawn for filtering of contaminant from an air stream, an open upper end for connection to the vacuum source, and a generally closed but optionally porous ... | 11/25/1997 |
| 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 |
| 5586997 | Bag filter The present invention provides a bag filter comprising a melt-blown fibrous nonwoven web formed into a bag configuration with a closed end, an open end, an inside surface, and an outside surface. The bag filter is constructed such that (a) the fibrous non... | 12/24/1996 |
| 5549966 | Fabric of commingled fiberglass and polytetrafluoroethylene An improved composite fiber of fiberglass and polytetrafluoroethylene (PTFE) is provided. The composite fiber comprises a coherent strand of commingled filaments of fiberglass and PTFE which is far more resistant to flex, abrasion, and chemical attack tha... | 08/27/1996 |
| 5112374 | Hair dryer air filter An air filter for a hand held hair dryer employing a stretchable filter material which covers the air inlets of the hair dryer. A circular seal is fixed to one end of the filter material and stretches around the air outlet nozzle of the hair dryer. A seco... | 05/12/1992 |
| 5052127 | Dryer bag A vent bag for a clothes dryer is provided and consists of a pouch with an air filter at its distal end that is releasably secured on a vent pipe of the clothes dryer so that the air filter can catch lint coming out of the vent pipe and recirculate the wa... | 10/01/1991 |
| 5002595 | Debris and water vacuum system A debris and water vacuum system comprising a vacuum pump, a debris receptacle, a first air filter stage, a second filter stage, and valve means for connecting and disconnecting the second air filter stage from a 40 mesh screen final filter and vacuum pum... | 03/26/1991 |
| 4976756 | Dust collector housing with removable roof section A dust collector housing or baghouse is modified to provide for the removal of increased length filter bags and support cages by providing a removable roof section which is connected to the main housing section by cooperating inwardly projecting flanges f... | 12/11/1990 |
| 4906259 | Prefilter for vacuum cleaners A pre-filter apparatus for use in conjunction with a vacuum cleaner, and which is used to pre-filter the dirt and dust-filled air by a method of negative pressure filtration in order to substantially reduce the volume of air suspending the same amount of ... | 03/06/1990 |
| 4902173 | System and filter for preventing contamination of particulate material in railroad car during transportation and unloading A system for preventing contamination of particulate material in a railroad hopper car during transportation and unloading of the material from the car, comprising transporting the material in the railroad hopper car with a filter on each of the various i... | 02/20/1990 |
| 4832843 | Apparatus for filtering fluid medium The apparatus comprises a hermetically sealed hollow housing (1) accommodating in the interior thereof a flexible filtering member (2) in the form of a hose, the ends of which are turned inside out and attached to the periphery of the inside surface of th... | 05/23/1989 |
| 4363156 | Vacuum cleaner dust container having compressing means associated therewith A vacuum cleaner having an air non-pervious body in the shape of a closed bellows in the suction chamber thereof with one end of the bellows bearing against the dust container, and the other end bearing against a partition separating the suction chamber f... | 12/14/1982 |
