| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 055361000 | FLEXIBLE OR COLLAPSIBLE BAG TYPE | 77 |
| 20100180558 | NONWOVEN FABRIC FOR CYLINDRICAL BAG FILTER, PROCESS FOR PRODUCING THE SAME, AND CYLINDRICAL BAG FILTER THEREFROM - The present invention provides a nonwoven fabric for cylindrical bag filter, wherein a long-fiber nonwoven fabric made of a synthetic fiber is used and the long-fiber nonwoven fabric is a long-fiber nonwoven fabric which is made of a thermoplastic continuous filament and is partially thermocompression-bonded. It is preferable that the circular arc flexural rigidity per basis weight is 0.050 to 1.000 ((cN/2 cm)/(g/m2)) and the air permeation rate per basis weight is 0.010 to 0.500 ((cc/cm2/sec)/(g/m2)). Further, there is provided a method for producing a nonwoven fabric for cylindrical bag filter including the steps of: melt-extruding a thermoplastic polymer through a spinneret; sucking and drawing the extrudate with an air sucker to form a thermoplastic continuous filament; allowing the filament to be subjected to electrification opening and to be piled on a moving collection surface to form a fiber web; and allowing the fiber web to be subjected to pressure welding treatment with a flat roll and partially thermocompression-bonding the fiber web with hot embossing rolls to form a long-fiber nonwoven fabric. | 07-22-2010 |
| 20100212272 | FILTER MEDIA SUITABLE FOR ASHRAE APPLICATIONS - Filter media which may be used in ASHRAE applications are described. The media include a fiber web and has desirable performance characteristics. | 08-26-2010 |
| 20120216493 | Vacuum Cleaner Filter Bag - The Invention relates to a vacuum cleaner filter bag comprising a bag wall, wherein the bag wall comprises precisely one nonwoven layer in the form of a melt-spur microfibrous nonwoven layer. | 08-30-2012 |
| 20120311977 | MEDIA FOR HOT GAS FILTRATION - A filter fabric having improved filtering properties for hot gas filtration containing a nonwoven aramid mat The mat has a basis weight of at least 9.7 ounces per square yard (330 grams per square meter) and is characterized by a pore size distribution in which the number of pores in a given range as measured by ASTM F316-03 test method is plotted against pore size. In a preferred embodiment, the percentage of pores having a size in between 10 and 26 microns is greater than 50% while the percentage of pores having a size of greater than 50 microns is less than 0.5%. | 12-13-2012 |
| 20130167492 | SEALING DEVICE AND METHOD - The present disclosure relates to a sealing device | 07-04-2013 |
| 20140331622 | AIR FILTERING DEVICE - A device for filtering air comprising a base, a fan functionally attached to the base, an air filter releasably attached to the base, and a substantially air impermeable outer sleeve is provided. | 11-13-2014 |
| 055363000 | Toroidal or annular bag | 1 |
| 20120186203 | FOLDED BAGHOUSE FILTER - A filter is provided and includes filter media folded into itself to have increased surface area formed of at least two filtering sections including an outer filtering section and an inner filtering section. | 07-26-2012 |
| 055364000 | Impervious bag with pervious portion | 1 |
| 20140331623 | COLLAPSIBLE AIR FILTERING DEVICE - A collapsible device for filtering air comprising a base, a fan functionally attached to the base, an air filter releasably attached to the base, and a substantially air impermeable outer sleeve is provided. | 11-13-2014 |
| 055365000 | Bag carried strain relief means between bag supports | 6 |
| 20090205300 | FILTER ELEMENT AND ARRANGEMENT - A filter element comprising a first planar layer ( | 08-20-2009 |
| 20100037571 | DUST COLLECTING DEVICE - The invention relates to a dust collection device for a hand-held power tool having a sanding or cutting tool and a dust extraction connection ( | 02-18-2010 |
| 20100126124 | BAG FILTER ASSEMBLY - A bag filter assembly is described; wherein the bag filter assembly includes a filter header, filter media, and a plurality of cover strips and one more living hinges. The header, the cover strips and the living hinges are injection molded as a single part from a plastic material. An adhesive is applied to the header. The pocket rings are also plastic injection molded as a single part with the header, the covers strips and the living hinge. | 05-27-2010 |
| 20100162672 | FILTER BAG FOR USE IN DUST COLLECTOR - Provided is a filter bag for use in a dust collector which increases a filter area greatly even with a simple structure, and which makes size of the dust collector compact, to thereby reduce an installation area of the dust collector, and uniformly distributing an air pressure to thereby increase a dust removal effect as well as to enable a worker to easily manufacture the dust collector regardless of a quality of a material to thus provide a wide application range. The filter bag includes: a cylindrical filter cloth ( | 07-01-2010 |
| 20110154789 | Method of Making a Marine Gas Turbine Filter - A method for making a pocket filter assembly is provided. Two side and two end header elements each having a pair of longitudinally extending side walls and a longitudinally extending bottom wall forming a longitudinally extending channel are joined at ends forming a rectangular header with two opposing sides and two opposing ends. The bottom wall and side walls of each of the opposing sides and the bottom walls and said side walls of each of said opposing ends become adjacent forming a rectangular header with a continuous bottom wall and continuous inner and outer side wall having a continuous channel therein. An upstream perimeter portion of a pocket filter element is inserted in the continuous channel and a liquid polymeric material is placed therein. The polymeric material is solidified forming a header frame having the upstream perimeter portion of the filter element unitary therewith. | 06-30-2011 |
| 20130255204 | EXPANDABLE CAGE FOR BAGHOUSE FILTER - A filter for use in a baghouse. The filter is to be supported by a tubesheet that separates dirty fluid and clean fluid chambers of the baghouse. The filter including a filtration bag that has an open end adjacent to the tubesheet and an encircling sidewall that extends from the open end to a distal end along a direction of a central axis of the filtration bag. The bag sidewall permits passage of fluid there through so that the fluid may pass from the dirty fluid chamber to the clean fluid chamber and blocks passage of at least some particulate material against proceeding to the clean fluid chamber. The filter includes a cage located within the filtration bag. The cage has structure to permit expansion of the cage to increase a cage diameter that forces the bag sidewall taut against the cage. | 10-03-2013 |
| 055367000 | Valved, self-closing, or apparatus contained bag closing means | 3 |
| 20100058720 | Vacuum Cleaner Filter Bag with Deflection Device - A vacuum cleaner filter bag with an inlet opening and a deflection device arranged in the area of the inlet opening, which is configured in such a way that an air stream flowing through the inlet opening can be deflected. | 03-11-2010 |
| 20110203239 | Vacuum Cleaner Filter Bag - The invention relates to a vacuum cleaner filter bag, comprising an inlet opening ( | 08-25-2011 |
| 20110308208 | Pre-Filter Particulate Collection Member - A pre-filter cloth is provided as designed and specifically adapted for use with the ShopVac®, Craftsman™, Rigid® or other similar style wet or dry vacuum. The pre-filter cloth is formed as a generally rectangular envelope formed of a polyester woven and/or nonwoven fabric felt having a weight of between 6-16 oz. The rectangular envelope forms two generally parallel planar sides separated by a pleated or other type of expandable edge construction and includes an open end that is releasably closed, preferably with a hook and loop fastener arrangement that seals the open end during use, but allows opening to permit egress of collected contents. One planar side form an entry portal circumscribed by a rigid connection flange capable of allowing securement to the hose inlet connection generally available on the inside sidewall of the canister vacuum. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way. | 12-22-2011 |
| 055368000 | Spaced interior inflow path or with means modifying gas flow in bag | 9 |
| 20080314005 | Vacuum Cleaner Filter Bag and Use of Said Bag - The invention relates to a vacuum cleaner filter bag with an inlet opening, comprising a deflection device which is arranged in the interior of the vacuum cleaner filter bag in the area of the inlet opening and which is implemented such that an air current flowing in through the inlet opening can be deflected by the deflection device, and an air-permeable material layer which is arranged in the interior of the vacuum cleaner filter bag, which is connected to said vacuum cleaner filter bag at least one point, and which includes at least one part that is not connected to the vacuum cleaner filter bag and that includes part of the boundary of the material layer. | 12-25-2008 |
| 20090031681 | Filter Pipeline - A filter pipeline for an air intake system of an internal combustion engine has a tubular body and a filter element arranged in the tubular body. The filter element is a filter bag of a flexible material that has an opening and is attachable in the area of the opening to the tubular body. The filter bag and an inner wall of the tubular body are shaped such that in a circumferential direction of the pipeline different spacings are provided between the filter bag and the inner wall of the tubular body. | 02-05-2009 |
| 20100132317 | DUST SEPARATOR - A dust separator including an inlet, a baffle and an outlet. The baffle is disposed below the inlet and substantially parallel to an incoming air stream, and is shaped to allow the separated dust to fall below the baffle and prevent the separated dust below the baffle from re-entering the air stream. The baffle is preferably a generally circular shape with an arc-shaped slot, where the slot has a radius smaller than the radius of the balance of the baffle. | 06-03-2010 |
| 20110047945 | Vacuum Filter Cleaner Bag - A vacuum cleaner filter bag includes (a) a bag wall made of filter material, an inlet opening being provided in the bag wall, (b) a deflecting strip for deflecting an air flow entering through the inlet opening, the deflecting strip being disposed in the interior of the vacuum cleaner filter bag, (c) a material strip which is disposed in the interior of the vacuum cleaner filter bag and connected to the bag wall, at least a part of the edge of the material strip not being connected to the bag wall, and (d) a spacing means which is configured such that the material strip is at a spacing at least partially from the bag wall during operation of the vacuum cleaner filter bag. | 03-03-2011 |
| 20110239599 | Dust Collection Device for Sanding Tool - A dust collection device for a sanding tool includes a paper bag having a sidewall with an inner surface and a coupler attached to the bag. The sidewall comprises at least one filter layer and an outer support layer. A sleeve having an outer surface, a sleeve sidewall, a first end, a second end, and at least one gap at either the first end or the second end is positioned within the bag. The sleeve's first end is positioned adjacent the coupler to direct incoming air towards the sleeve and the sleeve is positioned within the bag such that a bypass volume is present between the outer surface and the inner surface | 10-06-2011 |
| 20120131890 | Flat bag for vacuum cleaners - A flat bag for vacuum cleaners includes, in the interior thereof, at least two diffusers made of strips of material and/or sheet materials with oblong-shaped flow openings. Such flat bags are distinguished by excellent dust storage capacity and extension of the useful life. | 05-31-2012 |
| 20120186204 | Block-base bag for vacuum cleaners - A block-base bag is for vacuum cleaners. The bag includes, in the interior thereof, a diffuser made of strips of material and/or sheet materials with oblong-shaped flow openings. Such bags are distinguished by excellent dust storage capacity and extension of the useful life. | 07-26-2012 |
| 20120204524 | VACUUM CLEANER BAG - A vacuum cleaner bag includes an outside wall composed of filter material, having with an inflow opening formed therein and a shape to define a closed interior space except for the inflow opening. A tube structure is disposed within the interior space of the outside wall and comprises an air-permeable material having a flow-through opening in a center region aligned with the inflow opening. | 08-16-2012 |
| 20120272628 | Flat bag for vacuum cleaners - A flat bag is for vacuum cleaners. The bad includes, in the interior thereof, at least one diffuser which forms an intermediate plane and is made of strips of material and/or sheet materials with oblong-shaped flow openings. Such flat bags are distinguished by excellent dust storage capacity and extension of the useful life. | 11-01-2012 |
| 055369000 | Closure means other than coupler to flow line for filter or cover bag | 1 |
| 20100037572 | NEGATIVE PRESSURE DUST COLLECTOR WITH A DUST RECEIVING BAG SMOOTHLY INFLATABLE - A negative pressure dust collector with a dust receiving bag smoothly inflatable includes a ventilation hood and an exhaust device. The ventilation hood has a motor fixed on its top, fan blades confined in it to connect with the motor, and a first exit formed at its bottom. A dust collection tank is positioned below the first exit, having its interior put with a dust receiving bag. The exhaust device includes a ventilation tube fixed in the ventilation hood, and a flexible tube connected with the ventilation tube and positioned outside the ventilation hood. The flexible tube is connected with the dust collection tank so that the air existing between the inner wall of the dust collection tank and the dust receiving bag can effectively be sucked out to keep the dust receiving bag inflated to closely contact the inner wall of the dust collection tank. | 02-18-2010 |
| 055372000 | With additional nonbag type filter | 1 |
| 20110162335 | VACUUM FILTRATION SYSTEM - A filtration assembly for use with a suction cleaning device, the filtration assembly including a housing body for housing one or more filters; and a motor driven impeller which generates suction for drawing air and any entrained material into an inlet through the one or more filters and discharging the air through an outlet; wherein the one or more filters includes a first bag filter received by the housing body, the first bag filter including a base portion and a side portion which define a cavity for holding any material that cannot pass through the first bag filter; and, wherein the side portion of the first bag filter is laterally spaced apart from a wall portion of the housing body such that a gap is formed between the side portion and the wall portion. | 07-07-2011 |
| 055373000 | Housing closure secures bag | 4 |
| 20090272083 | Holding Plate for a Vacuum Cleaner Filter Bag - The invention relates to a holding plate ( | 11-05-2009 |
| 20100229512 | Multi-layer particle collector assembly - A multi-layer bag assembly is used with a housing for collecting particles from air flowing through the multi-layer bag assembly. Multi-layer bag assembly includes at least two bags arranged one inside the other. Each of the bags includes an air permeable filtering material for collecting particles carried by air flowing through the material. The air permeable filtering material being may be the same or different for the at least two bags. The multi-layer bag assembly includes structure for holding the at least two bags in a wide open position. The structure may be a cooperating bag structure incorporated in the at least two bags for cooperating with the housing for selectively holding the respective bags in their respective open conditions. The structure may also be a removable collar attached to at the open portion of the at least two bags, where the removable collar is part of an integral collar of the multi-layer bag assembly. The removable collar of the innermost bag is separable from the remaining portion of the integral collar for enabling the withdrawal of the innermost bag of the at least two bags. | 09-16-2010 |
| 20110289893 | HOUSING ASSEMBLY WITH BAGGING RING - Embodiments of the invention generally include a filter housing having a bagging ring coated to enhance a bag-to-bagging ring seal. In one embodiment, the housing assembly includes a housing having an inlet, an outlet and an access port. A bagging ring is disposed around the access port and includes a material having a property that enhances the bag-to-bagging ring seal. Examples of materials that have a property that enhance the bag-to-bagging ring seal include materials that are attracted to a plastic bag, materials that are tacky, materials that have a static attraction to a plastic bag. | 12-01-2011 |
| 20130212990 | DUCT VENT FILTER COVER - A duct filter bag used in connection with a heating and air conditioning vent, the duct filter bag including a filter body constructed of a material that is air permeable yet catches particles exiting the vent, the filter body having a perimeter; an attachment assembly connected to the filter body; where the filter body is extendable outward relative to the attachment assembly to define a filter volume; the attachment assembly being adapted to attach the filter body such that the filter volume is in registry with the vent. | 08-22-2013 |
| 055374000 | With flow line coupling means | 5 |
| 20110258976 | FILTER ELEMENT FOR CLEANING AN AIR STREAM THAT IS CHARGED WITH PARTICLES AND FILTER DEVICE THAT IS EQUIPPED WITH SAID ELEMENT - The invention relates to a filter device ( | 10-27-2011 |
| 20120110963 | FILTER ASSEMBLY FOR USE IN A TURBINE SYSTEM - In one aspect, a method for assembling a filtration system is provided. The method includes providing a filter including a retainer formed therewith. The method also includes coupling a gasket about the retainer such that the gasket circumscribes the retainer, such that the gasket is integrally formed with a clamp and such that the clamp is coupled to the retainer in a friction fit. | 05-10-2012 |
| 055375000 | Flexible conduit joins line to bag | 1 |
| 20090255224 | Filter Bag Mounting Assembly - A filter bag includes a bag structure of filter material. A panel is adhered to the bag structure and has a fill opening. A securing tab is attached by a hinge to the panel. The panel is configured to have a mounted position in which a fill tube projects through the fill opening into the bag structure to exhaust air into the bag structure. The panel can be secured in the mounted position by the attachment tab being manually pivoted about the hinge into attachment with an attachment structure coupled to the fill tube. | 10-15-2009 |
| 055376000 | Coupling part inseparable from bag | 2 |
| 20130061566 | Vacuum Cleaner Filter Bag - The invention relates to a vacuum cleaner filter bag, comprising a first bag wall containing a filter material and a second bag wall containing a filter material. The first and the second bag walls are joined together along the periphery thereof such that the vacuum cleaner filter bag is completely closed. Said filter material of the first and the second bag walls is made of a non-woven fabric. The vacuum cleaner filter bag comprises an inlet through which the air which is to be filtered can flow into the vacuum cleaner filter bag, also comprising a retaining plate. Said vacuum cleaner filter bag is characterised in that the first and/or the second bag wall comprises at least five folds. | 03-14-2013 |
| 20160183751 | Vacuum Cleaner Filter Bag Having a Spacing Element - The present invention relates to a vacuum cleaner filter bag made of nonwoven fabric which has a joint of the nonwoven fabric layers which seals the bag at the side at least at one place. At at least one place of the edge, a spacing means, which is configured by a double weld seam or reinforcing elements which are fitted in this region, is thereby included. A characterising feature of the vacuum cleaner filter bag according to the present invention is an increased three-point bending strength. | 06-30-2016 |
| 055378000 | With securing or supporting means | 23 |
| 20090031682 | Method of Making a Marine Gas Turbine Filter - A method for making a pocket filter assembly is provided. Two side and two end header elements each having a pair of longitudinally extending side walls and a longitudinally extending bottom wall forming a longitudinally extending channel are joined at ends forming a rectangular header with two opposing sides and two opposing ends. The bottom wall and side walls of each of the opposing sides and the bottom walls and said side walls of each of said opposing ends become adjacent forming a rectangular header with a continuous bottom wall and continuous inner and outer side wall having a continuous channel therein. An upstream perimeter portion of a pocket filter element is inserted in the continuous channel and a liquid polymeric material is placed therein. The polymeric material is solidified forming a header frame having the upstream perimeter portion of the filter element unitary therewith. | 02-05-2009 |
| 20090049810 | DUST FILTRATION BAG AND FRAME APPARATUS AND METHOD - Presented is an improved dust filtration unit of the type characterized by a filter bag having a plurality of pockets conjoined to a unitary opening, the opening having a collar that extends circumferentially around the opening, and a frame for supporting individual pockets and circumferentially supporting the opening. The improvement includes the frame having circumferential sidewalls with substantially vertical portions and top edges. A flange extends outwardly from the top edges to define a parameter and the filter bag includes an elastic hem at an outer edge of the collar. The bag is inserted within the sidewalls of the frame and the elastic hem edge of the collar is stretched over the flange for supporting attachment thereto. | 02-26-2009 |
| 20090090092 | Filter Bag and Method for the Production Thereof - A filter bag for a vacuum cleaner includes a tubular bag made of a casing which has at least one nonwoven layer. The casing has a first end region which is sealed at least partially and a second sealed end region situated opposite the first end region. The first end region is folded and forms a base. | 04-09-2009 |
| 20090183473 | Universal frame for use with a fabric filter - Disclosed herein is a structure for a frame filter, which is adaptable for a wide variety of different housing. The frame filter in accordance with the instant invention includes a universal frame and a housing and fabric filter bag secured between the two members. The frame is rigid and in combination with the housing forms a clamping member to secure the filter bag between for rugged use including movement and shocking-type motion. The frame, in accordance with this invention, defines a picture frame having a central opening defined by an annulus. The frame includes clamping structure for attaching the fabric filter bag to the frame and the housing of an appliance. A wide variety of shapes are within the spirit and scope of the structure of the invention. | 07-23-2009 |
| 20100218469 | BAG FILTER AND METHOD FOR ITS CONSTRUCTION - A bag filter ( | 09-02-2010 |
| 20110277428 | WIRE FILTER CAGE LOCKING MECHANISM - A filter bag support structure, including a first section and a second section. The first section includes a pair of opposed alignment members located partially internal to the first section and extending outwardly away from the first section aligned to insert into the second section. The second section includes at least one annular member. The alignment members are receivable within the second section and have engagement members near a distal end. A locking member is removeably insertable between the opposed alignment members and inhibits the alignment members from flexing inwardly when the locking member is inserted and causes the alignment members to resist being removed from the at least one annular member when a tension load is applied that would tend to separate the first section from the second section to a greater degree than when the locking member is not present. | 11-17-2011 |
| 20120216494 | Holding Plate for a Vacuum Cleaner Filter Bag - The invention relates to a holding plate for a vacuum cleaner filter bag having a bag wall, the holding plate comprising a base plate made of a first plastic material with a passage opening, and a connecting element that is connected to the base plate by a material bond and is made of a second plastic material, for connecting the base plate to the bag wall by a material bond, in particular by means of ultrasonic welding, characterized in that the connecting element is arranged an the side of the base plate that is to be connected to the bag wall. | 08-30-2012 |
| 20120279185 | BAGHOUSE FILTER CAGE - A primary filter cage wall element is adapted to form, together with at least one complementary filter cage wall element, a tubular baghouse filter cage segment. The filter cage wall elements are provided with snap-locks, for snapping a first long side of the primary filter cage wall element to a second long side of the complementary filter cage wall element, and for snapping a second long side of the primary filter cage wall element to a first long side of the complementary filter cage wall element. | 11-08-2012 |
| 20120324844 | FILTER ASSEMBLY FOR USE IN A BAGHOUSE - A filtration system for use in a turbine flow path is provided. The filtration system includes a cartridge filter and an attachment portion coupled to the cartridge filter, the attachment portion configured to couple the cartridge filter to a tube sheet, such that the tube sheet is secured within an annular cavity defined between a first flange and a second flange extending from the attachment portion. | 12-27-2012 |
| 20120324845 | FILTER ASSEMBLY FOR USE IN A BAGHOUSE - A filtration system is provided. The filtration system includes a flexible attachment portion, the attachment portion configured to couple the bag filter to a tube sheet, an adapter ring attached to the attachment portion, and a bag filter attached to the adapter ring. | 12-27-2012 |
| 20130042586 | VACUUM SWEEPER APPARATUS INCLUDING A FILTER BAG AND A METHOD OF INSTALLATION - A filter bag and an apparatus for attaching a filter bag to a vacuum sweeper are provided. The filter bag includes a top plate and a bag portion. The top plate has a key formed thereon. The apparatus includes a sled configured to receive a portion of a filter bag having a key formed thereon. The apparatus also includes a sweeper housing. The sweeper housing is adjacent the sled. The housing has a cavity for receiving a portion of the filter bag and a lock that interconnects with the key. A method for installing the filter bag in a vacuum sweeper is also provided. | 02-21-2013 |
| 20130227921 | FILTER BAG CAGE JOINT - A filter support cage for a baghouse filter comprises a first filter cage segment comprising elongated body portion having a top end and a bottom end, a second filter cage segment comprising a second elongated body portion having a top end and a bottom end, and a coupling member positioned between and connecting the bottom end of the first filter cage segment and the top end of the second filter cage segment. | 09-05-2013 |
| 20150135659 | Gas Turbine Filtration System with Inlet Filter Orientation Assembly - The present application provides a filtration system for a gas turbine engine. The filtration system may include a holding frame with a positioning element extending therefrom and a filtration unit for mounting within the holding frame. The filtration unit may include a positioning slot therein such that the positioning element extends through the positioning slot when the filtration unit is mounted within the holding frame. | 05-21-2015 |
| 20160038869 | BAG FILTER EXTENDER - A bag filter extender that comprises a quadrilateral tube is provided. The bag filter extender is configured to allow longer bag filter assemblies to be utilized in a holding frame. | 02-11-2016 |
| 20160252016 | GAS TURBINE FILTRATION SYSTEM WITH INLET FILTER ORIENTATION ASSEMBLY | 09-01-2016 |
| 055379000 | Bag internally supported | 8 |
| 20090255225 | AIR FILTRATION SYSTEM - A bag filter system including a filter media insert including a plurality of pockets. A tuck frame may be configured for mounting in a support frame of a filtration system. The tuck frame may be further configured to releasably engage at least a portion of the filter media insert. A wire frame may be disposed at least partially within the tuck frame. The wire frame may be configured to support the plurality of pockets of the filter media insert. | 10-15-2009 |
| 20090255226 | THERMALLY STABILIZED BAG HOUSE FILTERS AND MEDIA - A bag filter having a support structure clothed in a filter bag. The cloth of the filter bag is a composite of at least one substrate layer and at least one nanoweb bonded thereto in a face-to-face relationship. The nanoweb is positioned at the surface of the filter bag first exposed to the hot particle laden gas stream and can have a basis weight of greater than about 0.1 gsm. | 10-15-2009 |
| 20100058721 | BAG TYPE FILTER STRUCTURE - The present invention discloses a bag type filter structure including a filter frame module and filter bags. The filter frame module has a frame edge at each side of the perimeter of the filter frame module, and connecting ribs between two opposite frame edges for partitioning the filter frame module into air inlets. The quantity of filter bags is equal to the quantity of air inlets. Each filter bag includes a bag body and a frame, and the bag body has a mouth, and the frame is a grid frame composed of connecting members and a side frame and connected to the mouth of the bag body for bracing the mouth, and the side frame of the frame is embedded into the air inlet of the filter frame module for mounting the filter bag onto the filter frame module through the frame. | 03-11-2010 |
| 20100132318 | RETAINER CONE AND BAG FILTER RETAINER PROVIDED WITH THE SAME - It is an object of the present invention to provide a retainer cone that, by internally inserting the retainer cone into the central portion at the upper end portion of the retainer main body, which is an area, where negative pressure is generated, in the vicinity of the attaching portion of a prior art venturi tube, is capable of dispersing a part of the compressed air jetted from a nozzle at the upper part of the retainer main body, when carrying out reverse air filtration of a filtration fabric, in the radius direction of the retainer main body, preventing negative pressure from being generated at the upper end side of the retainer main body, outwardly inflating the entire filtration fabric including the upper end side of the retainer main body, securely shaking off powder dust adhered to the filtration fabric, and simultaneously enlarging the sectional area of a flow path at the upper end portion of the retainer main body in comparison with a prior art venturi type, and significantly reducing the load of a blower used for suction when collecting dust, wherein the retainer cone internally inserted into the central portion at the upper end side of the retainer main body of the bag filter retainer, which includes an upper end shrinkage portion disposed at the upper end portion in the lengthwise direction thereof so that the diameter is caused to shrink toward the upper end, and a lower end shrinkage portion formed at the lower end portion in the lengthwise direction thereof so that the diameter thereof is caused to shrink toward the lower end. | 06-03-2010 |
| 20130219842 | VARIABLE LENGTH BAG CAGE - A filter for use within a baghouse for filtering particulate material from fluid flow. The filter is to be supported by a tubesheet of the baghouse. The filter includes an elongate bag that has an open end adapted to be disposed adjacent to the tubesheet and an encircling sidewall that extends from the open end to a distal end of the bag. The sidewall permits passage of fluid there through so that the fluid may pass through the bag and blocks passage of particulate material. The filter includes an elongate cage that is located within and supporting the bag and that has a variable effective length. The filter includes cage-associated structure for increasing the effective length of the cage to maintain the sidewall to be taut adjacent the cage. The cage may include structure inhibiting movement of the cage. The filter may be part of a baghouse assembly. | 08-29-2013 |
| 20130305669 | Wire Cage for a Filter Bag - An elongated wire cage for insertion in to a known type of fabric filter (not shown) includes a pair of cage sections secured together by a pair of couplers attached to respective adjacent ends of the cage sections and having compatible flanges for securing the cage sections together thus forming the elongated cage. | 11-21-2013 |
| 20140311107 | Vacuum cleaner with enhanced surface area filter - A filter kit with an enhanced surface area filter and cage, for an electric power vacuum cleaner, the filter is a self-cleaning, flexible interlocking fabric having a rest position at atmospheric pressure, and a stretched position when under vacuum of a vacuum cleaner, the fabric having at least enough stretchability to increase its surface area by at least 10% in its stretched position from its rest position. When the vacuum cleaner is operating, the filter is in its stretched position and collects dust and debris, and when the vacuum cleaner is off, the filter relaxes, returns to its rest position and its surface area contracts to be self-cleaning, and a portion of the dust and debris to fall from the filter. | 10-23-2014 |
| 20150128540 | GAS TURBINE FILTER AND METHODS OF ASSEMBLING SAME - Systems and methods are provided for a filter system with an internal support structure. An embodiment of the filter system includes a header frame, a support structure having at least one arm, and a filter unit having at least one pocket. The support structure extends between the header frame and the filter unit. In addition, the support structure is coupled to the filter unit by inserting the at least one arm of the support structure into the at least one pocket of the filter unit. | 05-14-2015 |
| 055381000 | Seaming, reinforcing or bag structure | 17 |
| 20090049811 | Pocket Filter Joiner Arrangement and Method of Making - A filter bag, filter assembly, and method of making wherein the filter bag including a pair of longitudinally extending fluid pervious filter panels positioned in spaced opposed relation to form filter bag sides therebetween, the opposed longitudinally extending fluid pervious filter panels being connected together by at least one joiner in strip form arranged to extend longitudinally between the longitudinally extending spaced opposed filter panels and fastened on opposite longitudinal side edges of the joiner to the opposed panels from a downstream end to joiner separation points a selected distance from the upstream end. | 02-26-2009 |
| 20110011043 | BAG FILTER COMPRISING SCRIMLESS FILTER FELT OF META-AND-PARA-ARAMID STAPLE FIBER - This invention relates to a bag filter having a tubular section, a closed end, and an open end; the tubular section comprising a scrimless filter felt consisting essentially of a needle-punched batt of an intimate blend of fibers consisting of 50 to 79 percent by weight meta-aramid staple fiber, and 21 to 50 percent by weight para-aramid staple fiber; said needle-punched batt having a basis weight of from 10 to 17 ounces per square yard (340 to 580 grams per square meter). | 01-20-2011 |
| 20110011044 | BAG FILTER COMPRISING FILTER FELT OF META-ARAMID AND PARA-ARAMID STAPLE FIBER - This invention relates to a bag filter having a tubular section, a closed end, and an open end; the tubular section comprising a filter felt consisting essentially of a batt of an intimate blend of fibers needle-punched to a woven scrim, the blend of fibers consisting of 50 to 70 percent by weight meta-aramid staple fiber, and 30 to 50 percent by weight para-aramid staple fiber; said filter felt having a total basis weight of from 10 to 19 ounces per square yard (340 to 580 grams per square meter). | 01-20-2011 |
| 20120005997 | PLEATED WALLED BAG FILTERS FOR GAS TURBINE INLET SYSTEMS - A filter bag assembly and an associated method. The assembly has a filter bag that includes at least two sidewalls of filter material spaced from each other at an open end and connected to provide a closed end of the filter bag assembly. At least one of the sidewalls includes at least one folded pleat. In one specific example, the folded pleat extends perpendicular relative to a direction extending from the open end to the closed end. | 01-12-2012 |
| 20120210684 | Vacuum Cleaner Filter Bag - The invention relates to a vacuum cleaner filter bag ( | 08-23-2012 |
| 20130036717 | Vacuum Cleaner Filter Bag Having a Side Fold - The invention comprises a vacuum cleaner filter bag having at least one side fold formed by two fold legs, wherein the vacuum cleaner filter bag is designed as a tubular bag, wherein, in a turned-in state, the at least one side fold has at least three edges, wherein two of the edges are formed by a respective weld seam, and wherein the side fold can be turned out with the edges formed by a weld seam. | 02-14-2013 |
| 20130283742 | Seam-Sealed Filters and Methods of Making Thereof - A seam-sealed filter in which the seam is sealed with a seam tape comprised of an expanded fluoropolymer, such as ePTFE and copolymers thereof, having a crosswise matrix modulus of greater than 1,950 psi and an enthalpy ratio of less than 0.6 is disclosed. Such seam-sealed filters are capable of undergoing greater than 50,000′pulse-jet or reverse air cleaning cycles without substantial cracking or peeling of the sealed seam. Accordingly, the seam-sealed filters in the form of bags are particularly suitable for use in reducing particulate emissions in cement baghouses and the like. | 10-31-2013 |
| 055382000 | Multi-ply, strata, or laminated | 10 |
| 20090000256 | Filter Bag for Filtering Fine Particles from a Gas - The invention relates to a filter bag for filtering fine particles from a gas, having a filter coating at least of a certain coating thickness, and at least one filter layer of a certain layer thickness that disposed downstream of the filter coating in the direction of the gas flow. The invention is based on the task of providing a filter bag having a low tendency to clog, thus improving the service life of the dust filter bag, particularly upon the filtering of fine dusts. The task is solved in that the coating thickness of the filter coating ( | 01-01-2009 |
| 20090031683 | Filter Bag for a Vacuum Cleaner and Use Thereof - A filter bag for a vacuum cleaner includes at least three layers, at least two layers which comprise at least one nonwoven fabric layer and one nonwoven fibre layer being connected by a weld, a high bulk resulting due to the small number of welds per surface area. | 02-05-2009 |
| 20090211211 | Vacuum Cleaner Filter Bag - The invention relates to a vacuum cleaner filter bag made of a filter material, comprising at least three layers with at least two layers of a non-woven or non-woven fabric layer, and at least one layer of a fibre web layer of fibres and/or filaments, wherein the at least two non-woven layers and the at least one fibre web layer are connected to each other by a thermal bonding connection. | 08-27-2009 |
| 20090301043 | FILTER BAG - A filter bag includes a first filter material layer including an inflow opening, a second filter material layer having edges along which the second filter layer is joined to the first filter material layer to form an inside space; and a flat, multi-layer filter insert arranged in the inside space and having sections connected, respectively, to the first and second material layers. The filter insert has at least two outer layers defining an intermediate area there between. The intermediate area includes a center layer or an intermediate space for dust collection. | 12-10-2009 |
| 20090308032 | Dust Filter Bag - A dust filter bag is in the shape of a flat bag for a vacuum cleaner, which is formed from a first layer and a second layer made of a weldable material. The layers are welded together circumferentially along the circumference thereof. | 12-17-2009 |
| 20100212273 | Vacuum Cleaner Filter Bag - The invention relates to a vacuum cleaner filter bag having a composite material comprising a first layer consisting of a netting or a perforated sheet with an air permeability of at least 10,000 l/(m | 08-26-2010 |
| 20100218470 | Vacuum Cleaner Filter Bag - The invention relates to a vacuum cleaner filter bag having a filter medium comprising a first layer consisting of a netting, a perforated sheet or a perforated non-woven with an air permeability of at least 10,000 l/(m | 09-02-2010 |
| 20100236202 | FILTER MEDIUM - A filter medium has a woven fabric ( | 09-23-2010 |
| 20120304603 | LOW ELONGATION STRUCTURES FOR HOT GAS FILTRATION - Structures containing a fiber mat inserted into a high modulus scrim of minimum basis weight 35 gsm. The structures have reduced tensile elongation at 50 N per 5 cm fabric strip in MD under ISO 9073-3 standard norm. The structure has a basis weight of at least 9 ounces per square yard (305 grams per square meter). The structure also has heat resistance of at least 150° to 190° C., preferably over 200 up to 260° C. to for service under typical hot flue gas filtration conditions. Filter bags made from these structures provide a controlled dimensional stability over their entire filter life time. In addition such stable structures are suitable for lamination with fragile membranes especially e-PTFE membranes where minimum amount of mechanical damage to the membrane occurs. | 12-06-2012 |
| 20140260128 | HIGH EFFICIENCY PAINT ARRESTANCE FILTER - Various examples of the inventive subject matter include a method and corresponding system for fabricating a combination paint arrestance filter for use in the painting industry. Embodiments of the system include a single-stage combination filter having a number of first layer media pockets and a number of second layer media pockets arranged downstream of the first layer pockets. An opening of each of the first layer media pockets is arranged in parallel with one another to receive an incoming airflow into the single-stage combination filter. Each of the second layer media pockets is at least 99.97% efficient at removing 0.3 micron and larger particles at a face velocity on the filter of about 37 meters per minute. | 09-18-2014 |
