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Chemistry: Electrical Current Producing Apparatus, Product, And Process > Fuel Cell, Subcombination Thereof Or Methods Of Operating > Housing Member, Seal, Spacer Or Fluid Distributing Or Directing Means > Having Sealing Feature Having Sealing FeatureHaving Sealing Feature patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.06/07/07 - 20070128495 - Zinc/air cell A zinc/air button cell, wherein the cell has a single casing, namely, the anode can. A substantially flat metal support disk is employed, to close the open end of the anode can, thus eliminating the need for the conventional cathode can. The metal support disk is locked in place within ... 06/07/07 - 20070128494 - Integrated bipolar plate/diffuser for a proton exchange membrane fuel cell An integrated bipolar plate/diffuser fuel cell component comprising a monolith of electrically conducting preform material having: (a) a porous region having a porous surface; and (b) a 6 hermetic region infiltrated with a matrix material containing no chemical vapor infiltrated carbon. The hermetic region defines at least a portion of ... 05/31/07 - 20070122680 - Plate type fuel cell system A plate type fuel cell system includes: an electric generator including a membrane-electrode assembly having a plurality of anode electrodes and a plurality of cathode electrodes arranged on opposite surfaces of a proton-exchange membrane and spaced apart from each other; an anode separator facing the plurality of anode electrodes and ... 05/31/07 - 20070122679 - Seal structure of a fuel cell A seal structure of a fuel cell includes an interrupted back-up disposed at at least one of a connecting gas passage and a connecting coolant passage. The back-up located on one side of a separator and a portion of a seal line located on the other side of the separator ... 04/19/07 - 20070087253 - Method of manufacturing a fuel cell array and a related array A sealed fuel cell is provided which has been manufactured with a lead frame assembly encompassing a first and second current collector adapted to serve as lead frame components in an associated mold device. Fuel cell components include a catalyzed protonically conductive, electronically non-conductive membrane that has first and second ... 04/12/07 - 20070082250 - Fuel cell disassembly method and fuel cell A process of disassembling a fuel cell 10 supplies a fluid to both a fuel gas conduit 6g and an oxidizing gas conduit 7g. Since outlets of the respective gas conduits 6g and 7g are shielded, the internal pressure or in-passage pressure of the respective gas conduits 6g and 7g ... 03/29/07 - 20070072045 - Membrane electrode assembly for a fuel cell A membrane electrode assembly (MEA) for a fuel cell, which has a planar polymer membrane. This membrane, in a tangentially inner area, is coated on both sides with electrode structure, and, in a tangentially outer area projecting at least on one side beyond the electrode structure coating, is connected to ... 03/29/07 - 20070072044 - Fluid management component for use in fuel cell A fluid management component for use in a fuel cell comprises an anode, a cathode, an electrolyte membrane provided between the anode and the cathode, a porous body having a fuel supplying surface portion which faces the surface of the anode opposite to the electrolyte membrane and has channel portions ... 03/29/07 - 20070072043 - Stress reducing mounting for electrolyte sheet assembly in a solid oxide fuel cell A stress reducing mounting for an electrolyte sheet assembly in a solid electrolyte fuel cell is provided that includes a support frame or manifold having an inner edge portion that supports a peripheral portion of the sheet assembly, a seal that affixes an edge of the peripheral portion to the ... 03/22/07 - 20070065706 - Method and apparatus for filing a fuel container A filling device for use to manually or automatically refill a fuel cartridge using a separate fuel container or a second fuel cartridge is disclosed. The filling device provides for the sharing or fuel among numerous fuel containers and fuel cartridges in various consumer electronic devices. Fuel cartridges can be ... 03/22/07 - 20070065705 - Gasketed subassembly for use in fuel cells The present invention is an electrochemical device subassembly that includes a membrane electrode assembly and a gasket. The membrane electrode assembly includes an electrolyte membrane having a first major surface, a second major surface opposite the first major surface, and a peripheral edge. The gasket is disposed adjacent the first ... 03/15/07 - 20070059580 - Design strategies for corrosion mitigation Fuel cells are provided that are at least partially resistant to corrosion, including the use of components that are comprised of materials that are at least partially resistant to corrosion. The fuel cells include subgasket materials and designs, involving geometric arrangements of the subgasket that reduce oxygen permeation from, the ... 03/01/07 - 20070048587 - Solid polymer fuel cell A solid polymer fuel cell includes a membrane junction unit being provided an electrolyte membrane sandwiched by an oxidant electrode and a fuel electrode and two separators being sandwiched from both surfaces of the electrolyte membrane, the two separators being provided, in central portions of surfaces of the two separators, ... 02/22/07 - 20070042255 - Seal for fuel cell A membrane electrode assembly comprises an edge seal member, the edge seal member having a first compressive surface and an opposing second compressive surface wherein the first compressive surface comprises a seal protrusion and the opposing second compressive comprises an inner and outer seal protrusion. The seal protrusion on the ... 02/22/07 - 20070042254 - Integrated seal for fuel cell assembly and fuel cell stack A solid polymer fuel cell comprising a membrane electrode assembly that is in adhesive contact with a first flow field plate around the circumferential edge of the membrane electrode assembly and in non-adhesive contact with a second flow field plate, and an elastomeric manifold seal member that circumscribes at least ... 01/25/07 - 20070020502 - High temperature fuel cell system A high temperature fuel cell system includes upper and lower sheet gaskets including inner portions respectively covering an extending portion of the electrolyte membrane and outer portions combined with each other, wherein the extending portion of the electrolyte membrane is exposed from the electrodes, rubber gaskets that are disposed on ... 01/11/07 - 20070009780 - Sealing of multi-height surfaces Fuel cell gaskets are employed to seal around an individual cell of a fuel cell assembly. The individual cell includes a membrane electrode assembly where some of the components do not extend as close to the perimeter of the cell as others, thereby creating a gap. The gaskets, which may ... 01/04/07 - 20070003811 - Sealing arrangement for a fuel cell stack and process for the production of such a sealing arrangement In order to provide a sealing arrangement for a fuel cell stack, which comprises a plurality of fuel cell units, which are arranged consecutively in a stacking direction, wherein the sealing arrangement has an electrical insulation effect, and which also has an adequate electrical insulation effect and an adequate mechanical ... 01/04/07 - 20070003810 - Fuel cell seal and plate features In one aspect, a fuel cell assembly comprises a separator plate having a surface with a surface feature; and a seal comprising a resilient member defining a bead and a cooperating feature for engagement with the surface feature of the plate. The surface feature of the separator plate and the ... 12/28/06 - 20060292428 - Fuel cell system with sealed fuel cell stack and method of making the same Disclosed is a fuel cell system including a fuel cell stack. The fuel cell stack includes a plurality of unit cells stacked together. The unit cell includes an electrolyte membrane, a separator and a gasket, which is located between the separator and the electrolyte membrane and provide sealing therebetween. Further, ... 12/28/06 - 20060292427 - Air cell with modified sealing tab An air depolarized battery with an improved sealing member for sealing the air inlet port(s) of the battery before use is disclosed. The sealing member has areas of relatively high and low permeability, with an area of low permeability over at least a portion of an air inlet port. The ... 12/21/06 - 20060286428 - Composite sealing structure for sofc modules and stacks and related method A fuel cell composite sealing structure for a fuel cell stack/module that includes a cell that comprises having a cathode and an anode sandwiching a solid electrolyte, a cathode-side interconnect adjacent the cathode (or electrolyte) and an anode-side interconnect adjacent the anode (or electrolyte), the composite sealing structure comprising a ... 11/30/06 - 20060269819 - Membrane electrode assembly with integrated seal A membrane electrode assembly with an improved integrated seal comprises an edge seal having an inboard pad attached to the edge of the electrodes, a flexible coupling adjacent the pad, and a sealing element adjacent the coupling. The sealing element is significantly thicker than the pad, and the flexible coupling ... 11/30/06 - 20060269818 - Separator for fuel battery To provide a separator for a fuel battery in which a gasket is integrally formed with rubber in gasket forming grooves provided in a separator main body without the gasket forming grooves being damaged at a time of forming with the rubber and sealing performance being lowered due to the ... 11/09/06 - 20060251947 - Bipolar plate supported solid oxide fuel cell with a sealed anode compartment A bipolar plate supported solid oxide fuel cell with a sealed anode compartment is provided. The solid oxide fuel cell includes a cathode, an electrolyte, and an anode, which are supported on a metallic bipolar plate assembly including gas flow fields and the gas impermeable bipolar plate. The electrolyte and ... 11/02/06 - 20060246340 - Sealed fuel cell unit with a proton-exchange membrane A sealed proton-exchange membrane fuel cell unit of this invention comprises an MEA component, a sealing unit, and current collectors for the positive and negative electrodes. The current collectors press the MEA components from each side. The MEA components comprise a proton-exchange membrane, a sealing unit, and the positive and ... 11/02/06 - 20060246339 - Fuel cell unit and electronic apparatus A fuel cell unit comprises a fuel cell body, a case and a seal member. The fuel cell body has a membrane electrode assembly for generating power, which comprises an anode being supplied with fluid fuel, a cathode being exposed to atmosphere to be supplied with an oxydant, a membrane ... 11/02/06 - 20060246338 - Refilling device for electronic unit with a fuel cell Cartridge for refilling methanol or methanol/water as fuel to an electronic unit with a fuel cell. The cartridge includes a connection device comprising: an axially slidable cylinder (4) with an upper end that with a first sealing means (3) is brought sealingly through an inner cartridge wall (2) that constitutes ... 10/26/06 - 20060240306 - Stable, inexpensive, and freeze capable gasket for pem fuel cells A gasket formed of compressed graphite that is resistant to, damage, freezing, and high temperatures. The gasket provides advantages in fuel cells. ... 09/21/06 - 20060210861 - Electrode for polymer electrolyte fuel cell, separator therefore, and polymer electrolyte fuel cell and generating system using them The object of this invention is to provide an electrode for a polymer electrolyte fuel cell, a separator therefor, a polymer electrolyte fuel cell and a generating system, which electrode is simplified in structure, have high handling property, can be transferred precisely to a predetermined position, and enables automation of ... 09/14/06 - 20060204822 - Start control device applied to fuel cell system and its control methods available The present invention provides a start control device applied to a fuel cell system, which includes: a stickup-type separator, which can be stuck tightly at cathodes of the fuel cell system, or be separated from the cathodes, and it can separate the cathodes of the fuel cell system from the ... 07/06/06 - 20060147785 - Fuel cell A fuel cell is comprised of a pair of bipolar plates and a membrane electrode assembly sandwiched between the bipolar plates disposed in parallel. A hard stopper is disposed between the two bipolar plates to prevent the two bipolar plates from over-squeezing the membrane electrode assembly. The stopper can be ... 06/29/06 - 20060141324 - Manifold gasket accommodating differential movement of fuel cell stack A gasket for use in a fuel cell system having at least one externally manifolded fuel cell stack, for sealing the manifold edge and the stack face. In accordance with the present invention, the gasket accommodates differential movement between the stack and manifold by promoting slippage at interfaces between the ... 06/22/06 - 20060134497 - Manifold system for a fuel cell A fuel cell system includes multiple fuel cells. Each fuel cell may be a proton exchange membrane fuel cell that is arranged to optimize the performance of the fuel cell. The fuel cells may include silicon wafer substrates that define flow channels through the fuel cells for hydrogen and oxidant ... 06/15/06 - 20060127737 - Apparatus for and method of forming seals in fuel cells and fuel stacks A sealing technique is provided for forming complex and multiple seal configurations for fuel cells and other electrochemical cells. To provide a seal, for sealing chambers for oxidant, fuel and/or coolant, a groove network is provided extending through the various elements of the fuel cell assembly. A source of seal ... 06/15/06 - 20060127736 - Fuel cell seal with integral bridge The invention is drawn to a gasket (34) for use in an individual fuel cell (20). The gasket (34) includes at lest one generally rigid bridge (44) or (46) that extends across the fluid flow channels in adjacent separator plates (38) and (40). The bridge (44) or (46) assures that ... 06/15/06 - 20060127735 - Membrane based electrochemical cell stacks The present invention provides membrane cassettes and stacks thereof which are suitable for a use in a variety of electrochemical applications. The invention further provides membrane cassettes which comprise one or more composite membrane electrode assemblies which have a peripheral gasket where the gasket has at least one groove or ... 06/01/06 - 20060115704 - Fuel cell A fuel cell comprises a single cell including a membrane assembly electrode unit comprising a fuel electrode to which an aqueous methanol solution is supplied as a fuel, an air electrode to which an oxidizing gas is supplied, and an electrolyte membrane interposed between the electrodes, a fuel separator and ... 06/01/06 - 20060115703 - Fuel cell endplate and fuel cell A fuel cell endplate to be combined with a membrane/electrode assembly comprising a high-polymer electrolytic membrane and electrodes sandwiching the membrane; which comprises a resin substrate, a collector plate and a gasket; the collector plate being in contact with the surface of the resin substrate and the membrane/electrode assembly; the ... 05/25/06 - 20060110646 - Fuel cell and fuel cell stack In a solid polymer electrolyte membrane type fuel cell of the invention, where a pair of electrodes are provided on opposite sides of a solid polymer electrolyte membrane, and the outside thereof is clamped by a pair of separators, and nonconductive picture frame-shaped members 61 are arranged at the outer ... 05/11/06 - 20060099480 - Electrochemical cell bipolar plate with sealing feature A bipolar plate for an electrochemical cell having a first side, a second side, and a sealing region is disclosed. The first side has a first fluid flow region bordered by a first sealing region, and the second side has a second fluid flow region bordered by a second sealing ... 05/11/06 - 20060099479 - Electrochemical cell bipolar plate with sealing feature A bipolar plate for an electrochemical cell having a first side with a first fluid flow region bordered by a first sealing region, and a second side with a second fluid flow region bordered by a second sealing region is disclosed. The first and second sealing regions each include a ... 04/27/06 - 20060088753 - Sealing frame for fuel cell stacks The invention relates to a sealing frame (50) for fuel cell stacks having an alternating arrangement of flow plates (10) and electrolytic facilities (20) and cathode and anode regions formed between the flow plates (10) and the electrolytic facilities (20), wherein the sealing frame (50) is formed such that it ... 04/20/06 - 20060083977 - Fuel cell A power generation cell includes an anode side seal member and a cathode side seal member. The anode side seal member is provided outside an anode of a membrane electrode assembly, and directly contacts a solid polymer electrolyte membrane. The cathode side seal member is provided outside the membrane electrode ... 04/13/06 - 20060078781 - Curable subgasket for a membrane electrode assembly A subgasket for a membrane electrode assembly is deposited on a surface of a MEA component and cured in situ. A membrane electrode subassembly includes a polymer electrolyte membrane, a gas diffusion layer and a catalyst layer between the polymer electrolyte membrane and the gas diffusion layer. The membrane electrode ... 04/06/06 - 20060073372 - Fuel cell system and stack used thereto A stack for a fuel cell system including at least one electricity generating unit having a membrane electrode assembly and separators respectively disposed on both surfaces of the membrane electrode assembly, wherein gaskets are interposed on edges between the membrane electrode assembly and both of the separators, and wherein sealing ... 03/30/06 - 20060068263 - Sealing structure for polymer electrolyte fuel cell The present invention relates to a sealing structure for polymer electrolyte fuel cell, which comprises a bipolar plate with sealing groove to be filled with rubber using a dispenser, and a gasket interposed between the bipolar plate and a membrane electrode assembly. That is, according to the present invention, the ... 03/16/06 - 20060057450 - Catalyst for microelectromechanical systems microreactors A microreactor comprising a silicon wafer, a multiplicity of microchannels in the silicon wafer, and a catalyst coating the microchannels. In one embodiment the catalyst coating the microchannels comprises a nanostructured material. In another embodiment the catalyst coating the microchannels comprises an aerogel. In another embodiment the catalyst coating the ... 03/09/06 - 20060051652 - Interleave machine and method for stacking flat objects An interleave machine for stacking a plurality of generally flat objects and a method for stacking a plurality of generally flat objects and components, steps and/or assemblies of an interleave machine, including but not limited to a Bernoulli pick up and place device and the steps of using the size ... 03/02/06 - 20060046129 - Sealing system assembly for high pressure fluid handling devices A process fluid handling device is provided in an electrochemical cell system having a sealing system assembly between a process fluid compartment and a drive compartment of the fluid handling device. The sealing system comprises a double seal configuration forming an interconnection compartment which is supplied with barrier fluid. The ... 03/02/06 - 20060046128 - Seal configuration for fuel cell stack A seal configuration is provided for a fuel cell stack, including a first bipolar plate and a second bipolar plate, each disposed on opposite sides of a membrane electrode assembly. The seal configuration includes a first sub-gasket adhered to a recess region of the first bipolar plate and a second ... 02/16/06 - 20060035134 - Seal structure for fuel cell separator A seal structure of separator for fuel cell comprising: two separators disposed opposite to one another, which have electrode portions, manifold portions circulating fuel gas fed to said electrode portions, passage grooves feeding fuel gas between said electrode portion and said manifold portion, and hole portions opposite to the manifold ... 02/16/06 - 20060035133 - Stamped bridges and plates for reactant delivery for a fuel cell The present invention discloses a stamped bridge member that defines a flow path between a header and a flow field on a fuel cell plate. The bridge member provides a support surface on which a seal can be positioned to seal the plate against adjacent plates or MEAs. The fuel ... 02/02/06 - 20060024555 - Membrane electrode composite module, fuel cell and electronic equipment, and method of manufacturing the membrane electrode composite module According to the present invention, there is provided a membrane electrode composite module including a membrane electrode composite formed by sandwiching both surfaces of an electrolyte membrane between gas diffusion electrodes, an anode current collecting plate having fuel flow holes through which fuel flows, and a cathode current collecting plate ... 12/08/05 - 20050271926 - Fuel cell and metal separator for fuel cell A power generation cell includes a membrane electrode assembly and first and second metal separators sandwiching the membrane electrode assembly. The first metal separator is a thin metal plate. A first seal member is formed integrally around the outer end of the first metal separator. A portion defining an orifice ... 11/17/05 - 20050255363 - Contact element for a fuel cell stack A contact element (7) for a fuel cell stack for connecting the electrodes (3, 4) of two adjacent fuel cells. The contact element is has at least one sealed cavity which is filled with a gas. The gas continuously imparts elasticity to the contact element (7) even at high temperatures, ... 11/17/05 - 20050255362 - Fuel cell and related manufacturing method A fuel cell includes an electrode membrane structural body (5) and a pair of separators (9, 9) between which the electrode membrane structural body is sandwiched. The electrode membrane structural body includes an electrolyte membrane (1) and a pair of gas diffusion layers (3, 3) formed on both surfaces of ... 11/10/05 - 20050249997 - Fuel cell A fuel cell formed by arranging a plurality of unit cells, wherein each unit cell comprises a membrane electrode assembly arranged such that an electrolyte membrane is clamped between a membrane-like oxidizer electrode and a membrane-like fuel electrode as well as the electrolyte membrane is disposed with the outer periphery ... 11/10/05 - 20050249996 - Fuel cell assemblies using metallic bipolar separators High temperature solid oxide fuel cells (SOFC) and fuel cell stacks incorporating metallic bipolar separators with integral edge seals are provided. The electrochemical cells include reactant manifolds and flow passages, and may have either cathode or anode supported structures. The bipolar separators are thin metallic sheets that minimize thermal expansion ... 11/03/05 - 20050244703 - Membrane based electrochemical cell stacks The present invention provides membrane cassettes and stacks thereof which are suitable for a use in a variety of electrochemical applications. The invention further provides membrane cassettes which comprise one or more bipolar plates which have one or two reactant or coolant flow fields consisting of at least one groove ... 09/29/05 - 20050214620 - Unit cell structure comprising composite-gasket for fuel cell stack A composite gasket for fuel cell stack comprises two rows of beads and a support which can improve mountability and sealing property and reduce the assembly pressure by using materials having low hardness with reduced volume. This invention also relates to a structure for the assembly of the composite gasket. ... 09/01/05 - 20050191537 - Fuel cell gasket having an integrated sensor A gasket having an integrated sensor is provided for use in a fuel cell assembly. The gasket having a generally planar form and including a protruding portion extending outwardly in a direction substantially planar to a top surface of the gasket; and a sensor formed on the protruding portion of ... 08/25/05 - 20050186463 - Seal construction for a fuel cell electrolyser and process for making a fuel cell with same A sealing structure in a fuel cell and/or an electrolyzer (particularly a solid-oxide fuel cell and/or a solid-oxide electrolyzer) is arranged between neighboring separator plates of a cell stack. The sealing structure is constructed in at least two layers, including at least one insulating layer and at least one sealing ... 08/18/05 - 20050181262 - Membrane electrode assembly for an electrochemical fuel cell An improved membrane electrode assembly (“MEA”) for an electrochemical fuel cell comprises coextensive ion exchange membrane and electrode layers and a rigid fluid impermeable integral seal comprising a sealant material impregnated into the porous electrode layers in sealing regions of the MEA. The integral seal envelops the peripheral region including ... 08/18/05 - 20050181261 - Fluoroelastomer gasket compositions A gasket elastomer precursor of admixed fluoroelastomer particulate, curing agent, and metallic oxide reduction-agent optionally admixed with any of microspheres, inert particulate, PTFE particles. In one embodiment, the composition is applied to a substrate and cured to provide a fuel cell gasket. The admixtures provide a basis for designed cured ... 08/18/05 - 20050181260 - Elastomeric separator plates and mehtod of fabrication An electrically conductive flow field separator plate is disclosed for use in a proton exchange membrane fuel cell. The plate comprises a frame portion, a central planar portion within the frame and a flow field formed in a surface of the central planar portion. The frame portion is elastomeric so ... 08/04/05 - 20050170233 - Structurally yieldable fuel cell seal A seal for a fuel cell includes a matrix of glass and an embedded phase that includes a metal. The seal is configured to absorb stresses by becoming structurally yieldable at operating temperatures of the fuel cell. ... 08/04/05 - 20050170232 - Durable, low transient resistence between bipolar plate and diffusion media A fuel cell includes a first polymer electrolyte membrane (PEM) and a plate having a series of flow channels formed in a first surface. A first diffusion medium is disposed between the first PEM and the plate and is in direct contact with the first surface. A first sealing layer ... 07/28/05 - 20050164067 - Fuel cell assembly A fuel cell assembly in which ends on one side of the cells forming gas passages are gas-tightly fixed to a holding means. Between the peripheries of the ends on one side of the cells and the holding means, there are arranged a fixing member for fixing the cells to ... 07/21/05 - 20050158609 - Hydride-based fuel cell designed for the elimination of hydrogen formed therein A fuel cell for use with a hydride-based fuel, which fuel cell is designed for being sealed in a liquid-tight manner when in operation. The fuel cell comprises means for eliminating hydrogen formed inside the fuel cell. This abstract is neither intended to define the invention disclosed in this specification ... 07/14/05 - 20050153192 - Fuel cell A fuel cell includes a membrane electrode assembly and first and second metal separators sandwiching the membrane electrode assembly. A first cell voltage terminal for detecting a voltage generated in the membrane electrode assembly is formed integrally with an outer region of the first metal separator. The first cell voltage ... 06/23/05 - 20050136315 - Polymer electrolyte membrane fuel cell and bipolar plate A solid polymer fuel cell has a separator in which a separator board formed therein passages and manifolds are interposed between two frames. The separator board includes coupling parts between the manifold and the passages, which have a digit-like or grid-like support structure, and the coupling parts are held between ... 06/16/05 - 20050130016 - Sealing structure for sealing separator plates of fuel cell modules A sealing structure for sealing a proton exchange membrane fuel cell is disclosed. The fuel cell includes a membrane electrode assembly, an anode plate, and a cathode plate. Both of the plates are formed with a peripheral groove and an extended groove at a circumferential portion thereof, and silicon rubber ... 06/16/05 - 20050130015 - Molten carbonate fuel cell and method for production thereof A fuel cell, in particular a molten carbonate fuel cell and a method for production thereof are disclosed. The anode (1) and the cathode (2) are each provided on current collectors (4a, 4b), which electrically contact with the relevant electrode (1, 2) and form gas flow paths (17, 18) for ... 06/16/05 - 20050130014 - Bipolar plate of fuel cell and fabrication method thereof In a bipolar plate of a fuel cell and a fabrication method thereof, the bipolar plate of the fuel cell includes a plate; a fluid flowing space formed on both sides of the plate; a fluid guide mesh installed on the fluid flowing space; an inflow path formed on the ... 06/02/05 - 20050118484 - Fuel cell separator and method of manufacturing the separator A fuel cell separator (20) having a central part (22) and an outer peripheral part (30). The central part is a metal member made of stainless steel or the like. Multiple gas passages (31, 32) and multiple product water passages (33) are formed in the peripheral part. To ensure corrosion ... ### FreshPatents.com Support - Terms & Conditions |