US20150104730A1 - Filter - Google Patents

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Publication number
US20150104730A1
US20150104730A1 US14/268,297 US201414268297A US2015104730A1 US 20150104730 A1 US20150104730 A1 US 20150104730A1 US 201414268297 A US201414268297 A US 201414268297A US 2015104730 A1 US2015104730 A1 US 2015104730A1
Authority
US
United States
Prior art keywords
filter
gasket
frame
nozzle
filter according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/268,297
Other languages
English (en)
Inventor
Andreas Massold
Frank Sommer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20150104730A1 publication Critical patent/US20150104730A1/en
Priority to US15/671,027 priority Critical patent/US10601055B2/en
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/012—Making filtering elements
    • 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
    • B01D46/0001—Making filtering elements
    • 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
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0267—Collectors; Separators, e.g. bipolar separators; Interconnectors having heating or cooling means, e.g. heaters or coolant flow channels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0276—Sealing means characterised by their form
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0286—Processes for forming seals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/34—Seals or gaskets for filtering elements
    • B01D2201/342—Axial sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2271/02—Gaskets, sealings
    • B01D2271/022—Axial sealings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the invention relates to a filter with and/or a frame.
  • the term filter in this context relates to a filter medium that is thin relative to its length and width, for example a woven material, a warp knitted material, a knitted material or a fleece whose fibers are for example made from metal, plastic or glass.
  • the enumerations are exemplary and not complete.
  • the filter can be flat or have a three dimensional shape, it can be for example zigzag shaped, meander shaped, cylinder or frustum shaped or two dimensionally cambered.
  • the filter includes a preferably linear gasket, in particular along an edge of the filer, wherein the gasket can also be flat.
  • the edge can be an outer edge, or when the filter includes one or plural holes, an inner edge.
  • the gasket can also extend within the filter at a distance from edges of the filter.
  • the gasket is made in particular from an engineered plastic material with long term elasticity, for example an elastomeric material, a hard plastic material, a polyamide, a polyester, for example fluor silicone for a an oil filter or for example polypropylene as a carrier and not necessarily as a filter of a membrane for a fuel cell.
  • the gasket is in particular a solid material, thus not a foam, this means it does not include any intentional pores, gas inclusions, voids or similar cavities.
  • the filter can include a frame which provides additional stability to the filter.
  • the cavity has to be substantially taller due to the brake effect of the filter medium, at least two to three times the height of the cavity is required.
  • the filter medium does not only slow down the plasticized plastic material that is injected into the cavity under pressure, but the flowing plastic material pushes fibers of the filter medium in front of itself and squashes the fibers so that they block the cavity.
  • a filter with a gasket wherein a small height of the gasket shall be provided.
  • the height of the gasket designates its protrusion over a top surface or top surface of the filter, thus an imaginary surface which contacts fibers of the filter at their extremities.
  • the object is achieved according to the invention through a filter including a gasket, wherein the gasket is applied to the filter through master forming without a molding tool.
  • the gasket is produced through master forming without a molding tool and simultaneously attached at the filter or integrally formed at the filter.
  • a molding tool means that no forming tool like a casting mold or injection mold is used which includes the shape of the gasket to be produced as an empty space, this means as a cavity neither an entirety of the gasket nor a section of the gasket.
  • the invention facilitates a thin and flat gasket because a plasticized gasket material does not have to flow through a cavity during forming which requires a minimum thickness or minimum height of the gasket. Scrap through early congealing of a plasticized gasket compound or through penetration of the gasket compound into an injection molding tool into portions of the filter which shall not include a gasket is prevented.
  • the filter can include a frame which provides more or less stability to the filter.
  • the gasket can simultaneously also form a frame which stabilizes the filter.
  • the filter can also include stabilizing struts or grids or similar within its surface. According to the invention the frame is applied through master forming without a molding tool like the gasket.
  • An advantageous embodiment of the invention provides that the gasket is applied to the filter with a nozzle.
  • Another embodiment of the invention provides printing of the gasket.
  • a nozzle typically facilitates applying the gasket in one run with a desired thickness at the filter, wherein plural runs are feasible for a greater width and/or height of the gasket.
  • the nozzle can be a forming nozzle, this means an outlet of the nozzle has a contour that corresponds to a cross section of the gasket to be master formed, optionally also in consideration of a shrinkage or a swelling of the gasket material.
  • gasket can also be applied to the filter with a regular, for example frustum shaped flat or taper cut nozzle which forms plasticized gasket material into a bead which penetrates the filter and forms a line shaped sealing bead on a top side and/or on a bottom side of the filter.
  • a regular, for example frustum shaped flat or taper cut nozzle which forms plasticized gasket material into a bead which penetrates the filter and forms a line shaped sealing bead on a top side and/or on a bottom side of the filter.
  • a gasket material is useable which can be applied to the filter at room temperature.
  • the gasket material is heated and applied to the filter with a nozzle that is temperature controlled by water, electrical power or in another manner.
  • the gasket material in this case is for example a plasticized duroplastic or thermoplastic material or a thermally cross linked plastic material like for example silicone.
  • the gasket can be applied in one or plural layers for a greater thickness or height of the gasket.
  • all known printing methods are useable to apply the gasket to the filter, thus for example letter press printing, flat printing, gravure printing, screen printing, flexo- or offset printing.
  • the gasket medium flows far enough so that the dots unite in order to provide a continuous gasket without openings.
  • the gasket material penetrates the filter medium so that the gasket material encloses fibers of the filter medium without pass through openings.
  • the gasket material applied to the filter medium through master forming penetrates the filter medium and encloses the fibers of the filter so that the fibers of the filter are supported.
  • the filter is cut along the gasket after applying the gasket through master forming the gasket supports filter fibers at an edge of the filter and prevents that short fiber pieces of the filter migrate into a medium to be filtered.
  • an embodiment of the invention provides that the gasket reaches around the edge of the filter, this means the gasket forms a type of frame for the edge of the filter.
  • This embodiment of the invention improves a sealing effect and prevents a disengagement of the short fibers that are generated through cutting the fibers at the edge of the filter.
  • a configuration of the filter provides that the filter contacts a support while the gasket is applied, wherein the support includes a recess like a channel in the portion of the gasket to form a line shaped gasket.
  • This configuration of the invention facilitates applying a gasket at the filter wherein the gasket penetrates the filter and extends on both sides over the surfaces or main surfaces of the filter.
  • An embodiment of the invention provides that the filter forms a carrier for a membrane, for example for a fuel cell.
  • the filter serves in this case as a mechanical carrier for the membrane and does not necessarily have the function of a filter.
  • An embodiment of the invention provides a height of the gasket over a surface or main surface of the filter of approximately 500 ⁇ m or less, advantageously approximately 200 ⁇ m or less, and particularly advantageously approximately 20 ⁇ m or less.
  • the invention facilitates a gasket with any small height above the surface or main surface of the filter, starting with zero height.
  • An embodiment of the invention provides a three dimensionally formed filter.
  • a flat or mono dimensionally cambered, for example rolled filter is formed into a for example cambered element for example through a type of three dimensional draw forming after applying the gasket.
  • An embodiment of the invention provides that at least one protrusion is applied to the filter through master forming without a molding tool like the gasket wherein the protrusion is taller than the gasket.
  • the protrusion can be made from the same material as the gasket.
  • the at least one protrusion can include at least one base or spacer for positioning or installing the filter or for gripping the filter, in particular for automated gripping of the filter for example with a robot for handling the filter, for example when packing or unpacking or installing the filter.
  • the protrusion may have a height of one or plural mm above a surface or top surface of the filter. If the protrusion cannot can be applied at the filter in one pass through or layer due to its height, it can be applied through multiple applications for example with a nozzle or through printing in a respective number of layers.
  • FIG. 1 illustrates a top view of a filter according to the invention
  • FIGS. 2 a, b illustrate sectional views of the filter according to FIG. 1 , in a portion of a gasket in a enlarged depiction;
  • FIG. 3 illustrates a second embodiment of the invention
  • FIG. 4 illustrates a third embodiment of the invention.
  • the filter 1 according to the invention illustrated in FIG. 1 includes a fabric 2 made from plastic material fibers which is advantageously mechanically pulled off from a storage roll 3 and laid onto a CNC controlled table 4 that is moveable in X-direction and in Y-direction, this means longitudinally and transversally to the fabric 2 , wherein the table forms a support surface for the filter 1 for applying a gasket 8 .
  • the fabric also a knitted material, a warp knitted material or a fleece can be used.
  • the fibers can also be made from glass, metal carbon material or stone or mixes thereof.
  • An outer edge 5 and inner edges 6 of the filter 1 are illustrated in FIG. 1 with lines.
  • the inner edges 6 enclose holes in the filter 1 for example for pass thru openings or threaded connections of a filter or machine housing that is not illustrated and which includes a separation plane in which the filter 1 is arranged.
  • a gasket material is applied to the filter 1 along the edges 5 , 6 .
  • the gasket material is applied in a paste form and forms a permanently elastic line shaped gasket 8 along the edges 5 , 6 of the filter 1 after curing.
  • the gasket 8 can also be applied flat and/or inside the filter 1 and not only at the edges 5 , 6 (not illustrated). As apparent from the sectional view of FIG.
  • the gasket 8 penetrates the woven material 2 of the filter 1 and encloses its fibers 9 so that a tight seal without pass thru openings is formed between the fibers 9 .
  • the gasket 8 is thin. In the instant embodiment it only protrudes by approximately 20 ⁇ m above a surface or top surface 10 of the filter 1 .
  • the surface or top surface 10 is an imaginary surface which contacts the fibers 9 of the filters 1 at their extremities.
  • the filter 1 has a thickness D of approximately 150 ⁇ m wherein the protrusion of the gasket 8 which is designated as h is not proportional to the thickness D of the filter 1 but as a matter of principle independent from the thickness D of the filter 1 .
  • the protrusion h of the gasket 8 over the top or cover surface 10 of the filter 1 can also be smaller, as a matter of principle it can be anywhere between 0, a couple of ⁇ m, a couple of 10 ⁇ m or a couple of 100 ⁇ m tall.
  • the nozzle 7 is temperature controlled, for example water temperature controlled for applying for example silicone or for example electrically temperature controlled for applying for example thermo plastic material.
  • the gasket material is heated and plasticized in case it is not flow capable by itself and applied to the filter 1 with the nozzle 7 that is temperature controlled through water, electricity or in another manner.
  • the gasket material is for example a plasticized duro plastic material or thermoplastic material, an elastomeric material or a thermally cross linked plastic material like for example silicone.
  • the invention does not exclude a gasket material that can be applied to the filter 1 with a non temperature controlled nozzle 7 at room temperature.
  • the table 4 includes a support for the filter 1 for applying the gasket 8 and it includes a channel along edges 5 , 6 of the gasket 8 so that a protrusion of the gasket 8 also forms at a bottom side of the filter 1 over the surface or top surface of the gasket 8 .
  • the height h of the gasket 8 over the surface or top surface of the filter 1 can have identical sizes or different sized on both sides of the filter 1 . Applying the gasket 8 with the with the nozzle 7 facilitates a gasket 8 which is thinner or whose protrusion h over the surface or top surface 10 of the filter 1 is smaller than it would be feasible through injection molding of a gasket in an injection molding tool.
  • the inner edges 6 are cut and the filter 1 is cut out along the outer edge 5 .
  • the edges 5 , 6 of the filter 1 are cut within the gasket 8 .
  • the gasket 8 fixates the fibers 9 at the edges 5 . 6 and prevents that short fiber pieces generated through the cutting operation separate from the filter 1 during use.
  • the gasket 8 When the gasket 8 is applied at an edge of the filter 1 , when the filter 1 is cut or stamped before applying the gasket 8 , the gasket 8 encloses the edge of the filter 1 as apparent from FIG. 2 b.
  • the gasket material or another mass can also be built up higher than the gasket 8 to form protrusions 11 .
  • the protrusions 11 can be produced for example through multiple applications of gasket material or another compound in a straight or helical movement of the nozzle 7 oriented away from the filter 1 .
  • the protrusions 11 can be for example bases configured as spacers or for orienting the filter 1 or for automatically handling the filter 1 with a non illustrated robot.
  • the filter 1 After applying the gasket 8 through application with the nozzle 7 or imprinting, the filter 1 can be cambered through a deep drawing operation, this means through three dimensional shaping (not illustrated).
  • FIG. 3 illustrates a gasket 8 alternatively onto a filter 1 applied through printing for example with a printing roller 12 .
  • gasket material is applied to the filter 1 which as described with reference to FIGS. 1 and 2 penetrates the filter 1 and encloses the fibers of the filter 1 hermetically tight.
  • the gasket material can be printed onto the filter 1 several times, that means in layers.
  • the gasket material is for example an elastomeric material, a hard plastic material like polyamide, polyester, for technical oils for example floor silicone or as a carrier for a membrane for a fuel cell for example polypropylene.
  • the gasket 8 is permanently elastic.
  • the gasket 8 is made from a technical plastic material and does not include any intentional cavities, thus it is not a foam but a permanently elastic solid material without intentional pores or similar. This applies for the printed gasket 8 and also for the gasket 8 applied with the nozzle 7 .
  • a frame for example made from a hard plastic material can be applied to the filter 1 in the same manner as the gasket 8 .
  • the gasket 8 can also simultaneously also a frame of the filter 1 .
  • the filter 1 can also include stiffeners or struts within its surface like a frame at an edge or edges of the filter 1 .
  • FIG. 4 illustrates a fleece with fibers made from polypropylene as a carrier 13 for a membrane 14 of a non illustrated fuel cell.
  • the fleece can also be interpreted as a filter; primarily however it is used as stated supra as a carrier for the membrane 14 .
  • the fleece forming the carrier 13 is applied to a suction table 15 that is CNC controlled and moveable in X-direction and in Y-direction, wherein the membrane 14 is applied to the fleece and a foil 16 for evacuating is applied to the membrane 14 .
  • the foil 16 overlaps the membrane 14 and the fleece 13 so that edges 17 of the foil 16 contact the suction table 15 laterally outside of the fleece and the membrane 14 .
  • the suction table 15 is penetrated by suction channels 18 and includes an evacuation chamber 19 at its bottom side through which air can be suctioned out through a vacuum pump so that the applied foil 16 sucks the membrane 14 onto the fleece forming the carrier 13 .
  • a nozzle 7 is used to apply a plasticized gasket material along edges of the membrane 14 and of the fleece wherein the gasket material forms a line shaped permanently elastic gasket 8 after curing wherein the gasket 8 reaches around the membrane 14 and the fleece forming the carrier 13 and penetrates the fleece.
  • the membrane 14 is mechanically connected with the fleece through the gasket 8 and includes the gasket 8 at its edge.
  • the foil 16 melts when the gasket material is applied so that it can be lifted off from the membrane 14 easily.
  • the gasket 8 can be applied by application with the nozzle 7 or as a matter of principle through printing in a thin layer and with a low protrusion that starts at zero and can be applied to a surface or top surface of the membrane 14 and the fleece forming the carrier 13 .
  • the invention facilitates a gasket 8 which is thinner and/or includes a lower protrusion over the surface or top surface of the membrane 14 and carrier 13 than feasible through injection molding.
  • the gasket 8 is made form example from polypropylene.
  • FIG. 4 a channel shaped indentation 21 is visible in the suction table 15 in the portion of the gasket 8 , so that the gasket 8 also protrudes beyond the surface or top surface of the fleece forming the carrier 13 on a side that is oriented away from the nozzle 7 .
  • the invention also facilitates to connect a multi layer filter with a gasket and/or a frame that is applied through master forming without a molding tool at the edges and/or within a surface of the filter.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Manufacturing & Machinery (AREA)
  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Filtering Materials (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Fuel Cell (AREA)
US14/268,297 2013-10-11 2014-05-02 Filter Abandoned US20150104730A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/671,027 US10601055B2 (en) 2013-10-11 2017-08-07 Filter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13004899.4 2013-10-11
EP13004899.4A EP2859932B1 (fr) 2013-10-11 2013-10-11 Filtre

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/671,027 Division US10601055B2 (en) 2013-10-11 2017-08-07 Filter

Publications (1)

Publication Number Publication Date
US20150104730A1 true US20150104730A1 (en) 2015-04-16

Family

ID=49378004

Family Applications (2)

Application Number Title Priority Date Filing Date
US14/268,297 Abandoned US20150104730A1 (en) 2013-10-11 2014-05-02 Filter
US15/671,027 Expired - Fee Related US10601055B2 (en) 2013-10-11 2017-08-07 Filter

Family Applications After (1)

Application Number Title Priority Date Filing Date
US15/671,027 Expired - Fee Related US10601055B2 (en) 2013-10-11 2017-08-07 Filter

Country Status (3)

Country Link
US (2) US20150104730A1 (fr)
EP (2) EP2859932B1 (fr)
JP (1) JP5980291B2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170056903A1 (en) * 2015-08-25 2017-03-02 Andreas Massold Cover for liquid container of spray gun

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2599604A (en) * 1949-07-13 1952-06-10 Jordan V Bauer Filter element
DE3344187A1 (de) * 1983-12-07 1985-07-04 Seitz-Filter-Werke Theo & Geo Seitz GmbH und Co, 6550 Bad Kreuznach Filtermembran mit abdichtung und verfahren zu ihrer herstellung
JPH02104294U (fr) * 1989-02-03 1990-08-20
WO1992014838A1 (fr) * 1991-02-13 1992-09-03 Nihon Millipore Kogyo Kabushiki Kaisha Procede de determination quantitative de micro-organismes viables
DE19901545A1 (de) * 1999-01-16 2000-07-20 Edf Polymer Applikation Maschi Vorrichtung zum Verarbeiten und/oder Herstellen von Mehrkomponentengemischen
JP2001349436A (ja) * 2000-06-07 2001-12-21 Uchiyama Mfg Corp ガスケット
DE10152192B4 (de) * 2001-10-23 2004-10-28 Carl Freudenberg Kg Verfahren zur Herstellung einer Träger-Dichtung
US7235115B2 (en) * 2004-07-09 2007-06-26 3M Innovative Properties Company Method of forming self-supporting pleated filter media
US9757676B2 (en) * 2006-12-06 2017-09-12 Baldwin Filters, Inc. Method and apparatus for winding a filter element
JP4715756B2 (ja) * 2007-01-15 2011-07-06 国産部品工業株式会社 シール層転写式メタルガスケット
EP2131433A1 (fr) * 2008-06-05 2009-12-09 Reinz-Dichtungs-Gmbh Cellule électrochimique et procédé de sa fabrication
EP2470272B1 (fr) * 2009-09-11 2018-05-02 Breathe Safely Inc. Masque facial passif jetable à joint d'étanchéité à l'intérieur de joints d'étanchéité et à joint de pontage facultatif
US8802326B2 (en) * 2010-11-23 2014-08-12 GM Global Technology Operations LLC Fuel cell separator plate
US9105883B2 (en) * 2011-10-10 2015-08-11 Daimler Ag Assembling bipolar plates for fuel cells using microencapsulated adhesives

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170056903A1 (en) * 2015-08-25 2017-03-02 Andreas Massold Cover for liquid container of spray gun
US10232390B2 (en) * 2015-08-25 2019-03-19 Andreas Massold Cover for liquid container of spray gun

Also Published As

Publication number Publication date
US20170358807A1 (en) 2017-12-14
EP2859933A3 (fr) 2015-06-03
JP5980291B2 (ja) 2016-08-31
EP2859932B1 (fr) 2019-08-07
US10601055B2 (en) 2020-03-24
EP2859932A1 (fr) 2015-04-15
EP2859933A2 (fr) 2015-04-15
JP2015075237A (ja) 2015-04-20

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Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION