WO1998036819A1 - Filtration apparatus - Google Patents
Filtration apparatus Download PDFInfo
- Publication number
- WO1998036819A1 WO1998036819A1 PCT/GB1998/000399 GB9800399W WO9836819A1 WO 1998036819 A1 WO1998036819 A1 WO 1998036819A1 GB 9800399 W GB9800399 W GB 9800399W WO 9836819 A1 WO9836819 A1 WO 9836819A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filtration apparatus
- band
- cuff
- filter
- fabric
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/06—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material with means keeping the working surfaces flat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
Definitions
- the present invention relates to a filtration apparatus and particularly, but not
- the filter cartridges leaving dust on the filter surface.
- the dust is removed either by shaking the elements side by side and/or reversing the flow of air through the filter by
- the filters of the type hereinbefore described are rigid bodies comprising
- moulds for the filter heads and feet with a wide range of dimensions. Such moulds are
- filters comprise a filter sleeve, bag or envelope. These comprise a
- the fixing arrangement for securing the filter to the metal plate comprises an
- polyurethane head that is compressed to allow it to be pushed into an aperture in the
- a groove is provided around the polyurethane head for receiving the plate
- moulds of different dimensions for the moulded head. Furthermore the moulding
- Filter sleeves, bags or envelopes are generally less complicated to fit than filter
- the present invention therefore aims to overcome the problems associated with
- filtration apparatus comprising a band of resilient material located within a cuff of
- the cuff being integrally moulded to a body of polymeric material, a tube or
- the body of polymer material is ideally moulded to one end of the cuff in such
- the filtration apparatus of the invention is intended to allow a filter customer to
- holding the cuff in place against the filter plate means that one particular diameter of
- the invention thus provides a filtration apparatus with a high filtration area
- the cuff ideally comprises felt, such as a needlefelt, woven fabric or nonwoven fabric.
- the resilient band is preferably profiled so as to comprise a groove therein.
- the profiled band ideally has a one piece construction. This eliminates the effort and
- the resilience may be provided by using a resilient material such as spring stainless steel or hard rubber. However, it is desirable that the bands are easily
- apertures such as holes, slots or the like in the band, particularly in the areas forming
- the band is preferably captured in place by way of adhesive or stitching.
- the polymer material is preferably soft and flexible, typically a polyurethane with a Shore D hardness of 20 - 50. It is noted that standard filter cartridges use rigid
- Injection moulding may be required, for example a hot-melt or a two-part epoxy resin. Injection moulding
- cuff is integrally moulded to the polymer and the pleated filter material is inserted, by
- inventions may be made using a single mould design and a variable size cuff to reduce
- the filters are preferably circular or even elliptical to allow for use of a circular
- resilient band although any shape such as square, rectangular or hexagon may be used.
- venturi nozzle directs a reverse pulse
- Fig.1 is a perspective view of one filtration apparatus in accordance with the invention.
- Fig.2 is a section through the vertical plane passing through the filtration
- Fig.3 is a perspective view of the resilient band of the apparatus of figs. 1 and
- Fig.4 is a perspective view of a second filtration apparatus in accordance with
- a filtration apparatus 10 comprises a continuous
- Apertures 13 are provided around the groove 12 so as to improve the resilience of the band 11.
- the band 11 is located near the folded region of an endless cuff of needlefelt fabric 14.
- a row of stitching 15 is •
- cuff 14 that extends below the stitching 15 is integrally moulded with a ring 16 of soft
- An end of an endless ring of pleated filter material 17 is also
- the filtration apparatus In use the filtration apparatus is secured to an aperture in a metal plate 18. The resilient band is compressed by hand and then inserted in the plate aperture.
- the apparatus 10 is made by first forming a cuff 14 of fabric and placing this
- the band is secured in the cuff by stitching.
- resilient band is located becomes integrally moulded with polyurethane material.
- a second filtration apparatus 20 is illustrated. This is similar
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69800925T DE69800925T2 (en) | 1997-02-20 | 1998-02-09 | FILTRATION UNIT |
AU59992/98A AU740528B2 (en) | 1997-02-20 | 1998-02-09 | Filtration apparatus |
EP98903168A EP0961650B1 (en) | 1997-02-20 | 1998-02-09 | Filtration apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9703502.6A GB9703502D0 (en) | 1997-02-20 | 1997-02-20 | Filtration apparatus |
GB9703502.6 | 1997-02-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998036819A1 true WO1998036819A1 (en) | 1998-08-27 |
Family
ID=10807987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1998/000399 WO1998036819A1 (en) | 1997-02-20 | 1998-02-09 | Filtration apparatus |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0961650B1 (en) |
AU (1) | AU740528B2 (en) |
DE (1) | DE69800925T2 (en) |
GB (1) | GB9703502D0 (en) |
WO (1) | WO1998036819A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2856936A1 (en) * | 2003-07-04 | 2005-01-07 | Disa Cattinair | IMPROVEMENTS TO FILTRATION SLEEVE TYPE AIR FILTRATION FACILITIES |
EP1691123A1 (en) | 2003-11-13 | 2006-08-16 | Tame Industrial Navarcles, S.L. | Improved holding gasket |
WO2007054704A1 (en) * | 2005-11-10 | 2007-05-18 | Madison Filter 981 Limited | Improvements in fluid bed dryer filter |
WO2009027657A1 (en) | 2007-08-25 | 2009-03-05 | Madison Filter 981 Limited | Filter element constructions |
WO2011149324A1 (en) * | 2010-05-26 | 2011-12-01 | Jaya Filter (M) Sdn Bhd | Pleated filter element / cartridge |
USD698017S1 (en) | 2012-07-25 | 2014-01-21 | Tdc Filter Manufacturing, Inc. | Filter adaptor |
US9050546B2 (en) | 2012-01-05 | 2015-06-09 | Tdc Filter Manufacturing, Inc. | Waterproof and salt repellant media and filter |
CN112354280A (en) * | 2020-11-09 | 2021-02-12 | 禹言士 | Gas-through type high-desorption-rate filter bag with spherical filter element |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2308310A (en) * | 1942-05-07 | 1943-01-12 | Richard Ruemelin | Filter bag attaching means for dust arresting apparatus |
US3937621A (en) * | 1974-11-25 | 1976-02-10 | Phillips Petroleum Company | Filter bag cuff |
US4292057A (en) * | 1975-09-29 | 1981-09-29 | Flex Kleen Corp. | Top removal support for dust collector bags |
WO1995025580A1 (en) * | 1994-03-22 | 1995-09-28 | Scapa Group Plc | Filtering apparatus |
US5536290A (en) * | 1995-02-17 | 1996-07-16 | W. L. Gore & Associates, Inc. | Pleated cartridge filter attachment for top loading filter assemblies |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5632791A (en) * | 1994-12-06 | 1997-05-27 | Bha Group, Inc. | Unitary filter cartridge |
-
1997
- 1997-02-20 GB GBGB9703502.6A patent/GB9703502D0/en active Pending
-
1998
- 1998-02-09 WO PCT/GB1998/000399 patent/WO1998036819A1/en active IP Right Grant
- 1998-02-09 AU AU59992/98A patent/AU740528B2/en not_active Ceased
- 1998-02-09 EP EP98903168A patent/EP0961650B1/en not_active Expired - Lifetime
- 1998-02-09 DE DE69800925T patent/DE69800925T2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2308310A (en) * | 1942-05-07 | 1943-01-12 | Richard Ruemelin | Filter bag attaching means for dust arresting apparatus |
US3937621A (en) * | 1974-11-25 | 1976-02-10 | Phillips Petroleum Company | Filter bag cuff |
US4292057A (en) * | 1975-09-29 | 1981-09-29 | Flex Kleen Corp. | Top removal support for dust collector bags |
WO1995025580A1 (en) * | 1994-03-22 | 1995-09-28 | Scapa Group Plc | Filtering apparatus |
US5536290A (en) * | 1995-02-17 | 1996-07-16 | W. L. Gore & Associates, Inc. | Pleated cartridge filter attachment for top loading filter assemblies |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2856936A1 (en) * | 2003-07-04 | 2005-01-07 | Disa Cattinair | IMPROVEMENTS TO FILTRATION SLEEVE TYPE AIR FILTRATION FACILITIES |
WO2005005021A1 (en) * | 2003-07-04 | 2005-01-20 | Disa Cattinair | Air filtration units of the type comprising filtration bags |
US7776117B2 (en) | 2003-07-04 | 2010-08-17 | Dantherm Filtration Sas | Air filtration units of the type comprising filtration bags |
EP1691123A1 (en) | 2003-11-13 | 2006-08-16 | Tame Industrial Navarcles, S.L. | Improved holding gasket |
WO2007054704A1 (en) * | 2005-11-10 | 2007-05-18 | Madison Filter 981 Limited | Improvements in fluid bed dryer filter |
US7985270B2 (en) | 2005-11-10 | 2011-07-26 | Madison Filter 981 Ltd. | Fluid bed dryer filters |
WO2009027657A1 (en) | 2007-08-25 | 2009-03-05 | Madison Filter 981 Limited | Filter element constructions |
EP2471589A1 (en) | 2007-08-25 | 2012-07-04 | Madison Filter 981 Limited | Filter element constructions |
WO2011149324A1 (en) * | 2010-05-26 | 2011-12-01 | Jaya Filter (M) Sdn Bhd | Pleated filter element / cartridge |
US9050546B2 (en) | 2012-01-05 | 2015-06-09 | Tdc Filter Manufacturing, Inc. | Waterproof and salt repellant media and filter |
USD698017S1 (en) | 2012-07-25 | 2014-01-21 | Tdc Filter Manufacturing, Inc. | Filter adaptor |
CN112354280A (en) * | 2020-11-09 | 2021-02-12 | 禹言士 | Gas-through type high-desorption-rate filter bag with spherical filter element |
Also Published As
Publication number | Publication date |
---|---|
AU740528B2 (en) | 2001-11-08 |
AU5999298A (en) | 1998-09-09 |
DE69800925T2 (en) | 2002-03-28 |
DE69800925D1 (en) | 2001-07-19 |
EP0961650B1 (en) | 2001-06-13 |
GB9703502D0 (en) | 1997-04-09 |
EP0961650A1 (en) | 1999-12-08 |
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