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    MOLDED MULTI-PART FLOW FIELD STRUCTURE
    1.
    发明申请
    MOLDED MULTI-PART FLOW FIELD STRUCTURE 审中-公开
    模具多部分流场结构

    公开(公告)号：WO2005067087A2

    公开(公告)日：2005-07-21

    申请号：PCT/US2004/040967

    申请日：2004-12-07

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： FERGUSON, Dennis E.,

    IPC: H01M8/02

    CPC classification number: H01M8/0223 ,  H01M8/0221 ,  H01M8/0263 ,  H01M8/0267 ,  H01M8/0273 ,  H01M8/242 ,  H01M8/2483

    Abstract: A molded multi-part flow field structure includes a molded flow field plate formed of a conductive material comprising a first polymer. A molded frame is disposed around the flow field plate and formed of a non-conductive material comprising a second polymer. The molded flow field plate and frame preferably define a unipolar flow field structure. Manifolds are formed in the molded frame, and a molded gasket arrangement is disposed proximate a periphery of the manifolds. A molded coupling arrangement may be formed to extend from the frame and configured to couple the flow field structure with other unipolar flow field structures to define a continuous web of the unipolar flow field structures.

    Abstract translation: 模制的多部分流场结构包括由包含第一聚合物的导电材料形成的模制流场板。 模制框架围绕流场板设置并由包括第二聚合物的非导电材料形成。 模制流场板和框架优选地限定单极流场结构。 歧管形成在模制框架中，并且模制垫圈装置设置在歧管的周边附近。 模制的联接装​​置可以形成为从框架延伸并且被配置为将流场结构与其它单极流场结构耦合以限定单极流场结构的连续腹板。

    REGISTRATION ARRANGEMENT FOR FUEL CELL ASSEMBLIES
    2.
    发明申请
    REGISTRATION ARRANGEMENT FOR FUEL CELL ASSEMBLIES 审中-公开

    公开(公告)号：WO2005045973A3

    公开(公告)日：2005-05-19

    申请号：PCT/US2004/035215

    申请日：2004-10-25

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： SAULSBURY, Kim B., ,  BOONE, Mary R., ,  O'BRIEN, Dennis P., ,  FERGUSON, Dennis E., ,  BOUCHER, Paul M.,

    IPC: H01M8/02 ,  H01M8/24

    Abstract: A registration arrangement for a fuel cell stack assembly incorporates registration posts ( 212 ) and registration apertures or recesses ( 210 ). Fuel cell assemblies of the stack may include first ( 202 ) and second ( 206 ) flow field plates and a membrane electrode assembly (MEA) ( 204 ) having an active area. Registration apertures are defined in each of the MEA and the first and second flow field plates. The respective registration apertures are situated within non-active areas of the MEA when the first and second flow field plates and the MEA are in axial alignment. Registration posts are configured for reception within the registration apertures. Each of the registration posts has an outer surface differing in shape from a shape of the inner surface of the registration apertures. The inner surface of the registration apertures contact the outer surface of the registration posts at a plurality of discrete press-fit locations.

    ULTRASONIC-ASSISTED MOLDING OF PRECISELY-SHAPED ARTICLES AND METHODS
    3.
    发明申请
    ULTRASONIC-ASSISTED MOLDING OF PRECISELY-SHAPED ARTICLES AND METHODS 审中-公开
    超声波辅助成型精密制品及方法

    公开(公告)号：WO2012125697A2

    公开(公告)日：2012-09-20

    申请号：PCT/US2012/029035

    申请日：2012-03-14

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  RENDON, Stanley, ,  FERGUSON, Dennis E., ,  POCHARDT, Donald L., ,  WARNER, Joseph S., ,  ROWELL, Timothy J., ,  BENSON, Peter T., ,  NAYAR, Satinder K.,

    Inventor： RENDON, Stanley, ,  FERGUSON, Dennis E., ,  POCHARDT, Donald L., ,  WARNER, Joseph S., ,  ROWELL, Timothy J., ,  BENSON, Peter T., ,  NAYAR, Satinder K.,

    IPC: B29C45/78 ,  B29C45/72

    CPC classification number: B29C45/73 ,  B29C45/0025 ,  B29C45/568 ,  B29C45/7207 ,  B29C2045/7393 ,  B29L2011/00 ,  C08F220/06

    Abstract: An ultrasonic-assisted injection molding system and method for making precisely- shaped articles. A source of ultrasonic energy is positioned to apply vibrational energy to a mold cavity connected to at least one gate in flow communication with a source of molten (co)polymer. The mold is heated to a temperature of 104-116°C, and the molten (co)polymer is injected into the mold cavity. After cooling the mold until the molten (co)polymer within the gate has solidified, ultrasonic energy is applied to the mold without remelting the solidified (co)polymer within the gate until the temperature increases to 116-122°C, thereby substantially relieving flow induced stresses. The mold is then cooled until the temperature decreases to 101-107°C, and is thereafter heated until the temperature increases to 116-122°C, thereby substantially relieving any thermally induced stresses. The mold is cooled until the molten (co)polymer has solidified, thereby forming a precision molded plastic optical element.

    Abstract translation: 一种超声波辅助注射成型系统及其制造方法。 定位超声波能源，以将振动能施加到与熔融（共）聚合物源流动连通的至少一个门的模腔中。 将模具加热到104-116℃的温度，并将熔融的（共）聚合物注入模腔中。 在模具冷却之后，门内的熔融（共）聚合物已经固化，超声波能量被施加到模具上，而不使固化的（共）聚合物在浇口内重熔，直到温度升至116-122℃，从而基本上减轻流动 诱发应力。 然后将模具冷却直到温度降至101-107℃，然后加热直到温度升至116-122℃，从而基本上减轻任何热诱导的应力。 将模具冷却直到熔融（共）聚合物固化，从而形成精密模塑塑料光学元件。

    FLOW FIELD
    8.
    发明申请
    FLOW FIELD 审中-公开

    公开(公告)号：WO2004070864A3

    公开(公告)日：2004-08-19

    申请号：PCT/US2003/040525

    申请日：2003-12-19

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： FERGUSON, Dennis E.,

    IPC: H01M8/02

    Abstract: An article bearing a flow field such as a distribution plate for use in a fuel cell is provided. The active portion of the article, i.e., the portion of the article bearing the flow field, comprises at least two subsections; a first central subsection and a second peripheral subsection; wherein channels within the first subsection have a cross-sectional profile that differs from that of channels within the second subsection. Typically, channels of the first subsection have lesser depth, greater draft or greater ratio of draft to depth. In addition, an article bearing a flow field is provided where the flow field comprises at least two channel segments which differ in draft. In addition, an article bearing a flow field is provided where the flow field comprises at least one channel segment comprising first and second channel walls which differ in draft.

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