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    Expandable and expanded plastic materials and methods for casting metal castings employing such expanded cellular plastic materials
    42.
    发明授权
    Expandable and expanded plastic materials and methods for casting metal castings employing such expanded cellular plastic materials 失效
    可膨胀和膨胀的塑料材料和使用这种膨胀的多孔塑料材料铸造金属铸件的方法

    公开(公告)号：US5053437A

    公开(公告)日：1991-10-01

    申请号：US608131

    申请日：1990-11-01

    Applicant: Norman G. Moll ,  David R. Johnson

    Inventor： Norman G. Moll ,  David R. Johnson

    IPC: B22C7/02 ,  C08J9/14

    CPC classification number: C08J9/149 ,  B22C7/023 ,  C08J9/141 ,  C08J2333/04 ,  Y10S264/05 ,  Y10S521/91

    Abstract: Expandable and expanded plastic materials having a majority of alkyl acrylate monomeric repeat units are disclosed. These materials when expanded have a volume expansion of at least 60 and maintain that volume expansion for a period of at least 30 minutes under expansion conditions after reaching the volume expansion of 60. Expandable and expanded plastic materials having a majority of alkyl acrylate monomeric repeat units and an inhibitor for the monomer(s) and a crosslinker incorporated into the plastic material upon monomer polymerization are also disclosed. Also disclosed are expandable and expanded plastic materials having a majority of alkyl acrylate monomeric repeat units with blowing agents of 2,2-dimethylbutane, 2,3-dimethylbutane or mixtures of one or both with 1-chloro-1,1-difluoroethane or mixtures of at least 30 percent of one or both with other volatile blowing agents.These specific types of formed patterns and core assemblies, wholly or partially formed from the destructible expanded closed-cell cellular plastic materials of the present invention have a decreased tendency to form nonvolatile residue during the casting of metals such as iron. Superior castings are thereby obtained without resort to uneconomic casting methods.Further disclosed is a method of casting metal castings using the disclosed expanded plastic material articles (Lost Foam or Evaporative Pattern Casting). The disclosed expanded plastic material articles are especially preferred for metal castings having a final carbon percentage of 1.8 weight pecent or less in the final casting.

    Abstract translation: 公开了具有大多数丙烯酸烷基酯单体重复单元的可膨胀和膨胀的塑料材料。 当膨胀时，这些材料的体积膨胀至少为60，并且在达到体积膨胀60后在膨胀条件下保持该体积膨胀至少30分钟的时间。具有大部分丙烯酸烷基酯单体重复单元的膨胀和膨胀塑料材料 并且还公开了用于单体的抑制剂和在单体聚合时掺入塑料材料中的交联剂。 还公开了具有大部分丙烯酸烷基酯单体重复单元的可膨胀和膨胀塑料材料，其具有2,2-二甲基丁烷，2,3-二甲基丁烷或其中一种或两者与1-氯-1,1-二氟乙烷或其混合物的混合物 至少30％的一种或两种与其它挥发性发泡剂。 由本发明的可破坏的膨胀闭孔多孔塑料材料全部或部分形成的这些特定类型的成型图案和芯组件在金属如铁中形成非挥发性残余物的倾向降低。 从而获得了优异的铸件，而不采用不经济的铸造方法。 进一步公开的是使用所公开的膨胀塑料材料制品（失物泡沫或蒸发模式铸造）铸造金属铸件的方法。 所公开的膨胀塑料制品对于在最终铸件中具有1.8重量％或更少的最终碳百分比的金属铸件是特别优选的。

    Uniform minimization of plastic foam cell size
    45.
    发明授权
    Uniform minimization of plastic foam cell size 失效
    均匀最小化泡沫泡沫塑料泡沫尺寸

    公开(公告)号：US4579872A

    公开(公告)日：1986-04-01

    申请号：US730536

    申请日：1985-05-06

    Applicant: David R. Johnson

    Inventor： David R. Johnson

    IPC: C08J9/14 ,  C08J9/18 ,  C08J9/16

    CPC classification number: C08J9/18 ,  C08J9/14 ,  C08J2325/00 ,  Y10S521/91

    Abstract: Expandable beads and the like of thermoplastic organic polymer material, advantageously lightly-crosslinked in preparation, which are imbibed with halocarbon and/or light hydrocarbon (including mixed) blowing agents are advantageously tempered to provide excellent quality, uniformly fine-celled expanded cellular products therefrom by a quick quench from imbibition temperature to below 10 or so .degree. C. within one minute.

    Abstract translation: 有利的是，与卤代烃和/或轻烃（包括混合）发泡剂一起吸收的热塑性有机聚合物材料的易发生轻质交联的可膨胀珠等有利地回火以提供优质的均匀细胞扩张的细胞产物 通过在一分钟内迅速从吸入温度骤冷至低于10℃。

    File handling for naming conflicts
    47.
    发明授权
    File handling for naming conflicts 有权
    文件处理命名冲突

    公开(公告)号：US08972464B2

    公开(公告)日：2015-03-03

    申请号：US13617520

    申请日：2012-09-14

    Applicant: Christopher S. Davis ,  David R. Johnson ,  Robert F. Day ,  Stephan Hoefnageis ,  Timothy P. McKee

    Inventor： Christopher S. Davis ,  David R. Johnson ,  Robert F. Day ,  Stephan Hoefnageis ,  Timothy P. McKee

    IPC: G06F17/30

    CPC classification number: G06F17/30067 ,  G06F17/30115 ,  G06F17/30123 ,  G06F17/30176

    Abstract: A file operations engine is provided that manages many user interactions with their files via a computer system. The operation engine may provide a user with the option to keep both files that have a file name conflict. It may further permit the user to rename a file involved with a file name conflict. The operations engine may also automatically rename one of the files of a file name conflict by appending a character to a root of the filename. The character may include the lowest integer available for the root in a destination for the files. The operations engine may provide the option to keep both files as part of a pre-calculation of potential errors for a requested operation. The operations engine may place file name conflicts in an error queue and permit the user to select an option to keep both files after the conflict is encountered.

    Abstract translation: 提供了一种文件操作引擎，通过计算机系统管理与他们的文件的许多用户交互。 操作引擎可以向用户提供保持具有文件名冲突的两个文件的选项。 它还可以允许用户重命名涉及文件名冲突的文件。 操作引擎还可以通过将文件附加到文件名的根来自动重命名文件名冲突的一个文件。 字符可能包括可用于文件目标中根目录的最小整数。 操作引擎可以提供将两个文件作为对所请求操作的潜在错误的预先计算的一部分的选项。 操作引擎可能会将文件名冲突置于错误队列中，并允许用户选择一个选项以在遇到冲突后保留这两个文件。

    Monitoring traffic signal preemption
    48.
    发明授权
    Monitoring traffic signal preemption 有权
    监控交通信号抢占

    公开(公告)号：US08830085B2

    公开(公告)日：2014-09-09

    申请号：US12617048

    申请日：2009-11-12

    Applicant: David John Edwardson ,  David R. Johnson ,  Kevin Clare Eichhorst ,  Patrick Keenan Cosgrove ,  Nicole Maria Montgomery

    Inventor： David John Edwardson ,  David R. Johnson ,  Kevin Clare Eichhorst ,  Patrick Keenan Cosgrove ,  Nicole Maria Montgomery

    IPC: G08G1/07 ,  G08G1/00 ,  G08G1/01 ,  G06G7/78 ,  F41G9/00 ,  G08G1/16 ,  G05D1/00 ,  G08G1/087

    CPC classification number: G08G1/087

    Abstract: Approaches for monitoring traffic signal preemption at one or more intersections. According to one embodiment, a road map that includes a plurality of roads and intersections is displayed with a computer system. Preemption data periodically received by the computer system from at least one preemption controller at a respective intersection is used to update the road map. In response to the preemption data, the road map is updated to include a traffic signal icon at the respective intersection and a vehicle icon at a location on the map corresponding to a location of a vehicle transmitting a preemption request as indicated by the preemption data.

    Abstract translation: 监控一个或多个交叉路口的交通信号抢占的方法。 根据一个实施例，包括多个道路和十字路口的路线图与计算机系统一起显示。 使用计算机系统从相应交叉点的至少一个抢占控制器定期接收的抢占数据来更新路线图。 响应于抢占数据，路线图被更新为在相应交叉口处包括交通信号图标，并且在与由抢占数据指示的发送抢占请求的车辆的位置相对应的地图上的位置处的车辆图标。

    MONITORING TRAFFIC SIGNAL PREEMPTION
    49.
    发明申请
    MONITORING TRAFFIC SIGNAL PREEMPTION 有权
    监测交通信号预警

    公开(公告)号：US20110109477A1

    公开(公告)日：2011-05-12

    申请号：US12617048

    申请日：2009-11-12

    Applicant: David John Edwardson ,  David R. Johnson ,  Kevin Clare Eichhorst ,  Patrick Keenan Cosgrove ,  Nicole Maria Montgomery

    Inventor： David John Edwardson ,  David R. Johnson ,  Kevin Clare Eichhorst ,  Patrick Keenan Cosgrove ,  Nicole Maria Montgomery

    IPC: G08G1/07

    CPC classification number: G08G1/087

    Abstract: Approaches for monitoring traffic signal preemption at one or more intersections. According to one embodiment, a road map that includes a plurality of roads and intersections is displayed with a computer system. Preemption data periodically received by the computer system from at least one preemption controller at a respective intersection is used to update the road map. In response to the preemption data, the road map is updated to include a traffic signal icon at the respective intersection and a vehicle icon at a location on the map corresponding to a location of a vehicle transmitting a preemption request as indicated by the preemption data.

    Abstract translation: 监控一个或多个交叉路口的交通信号抢占的方法。 根据一个实施例，包括多个道路和十字路口的路线图与计算机系统一起显示。 使用计算机系统从相应交叉点的至少一个抢占控制器定期接收的抢占数据来更新路线图。 响应于抢占数据，路线图被更新为在相应交叉口处包括交通信号图标，并且在与由抢占数据指示的发送抢占请求的车辆的位置相对应的地图上的位置处的车辆图标。

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