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    Switch and component attachment to flexible printed circuitry
    12.
    发明授权
    Switch and component attachment to flexible printed circuitry 失效
    开关和组件连接到柔性印刷电路

    公开(公告)号：US4385213A

    公开(公告)日：1983-05-24

    申请号：US211826

    申请日：1980-12-01

    Applicant: Willis A. Larson

    Inventor： Willis A. Larson

    IPC: H01H13/702 ,  H01H13/83 ,  H05K1/18 ,  H05K3/32 ,  H01H13/70 ,  H05K1/00

    CPC classification number: H05K3/326 ,  H01H13/702 ,  H01H13/83 ,  H01H2219/04 ,  H01H2229/038 ,  H05K1/182 ,  H05K1/189 ,  H05K2201/056 ,  H05K2201/10106 ,  H05K2201/10393 ,  H05K2201/10651 ,  H05K2201/10977

    Abstract: An electrical component attachment for securing discrete components to a rigid circuit board without the use of plated-through holes. A unitary sheet member has a membrane portion and a flap portion. The membrane portion lies on one side of the circuit board. The flap portion wraps around an edge of the circuit board and is adhesively secured to the other side of the board. An electrical component is disposed between the flap portion and the board so as to be secured thereto by the flap portion. The sheet has conductive traces which contact the leads of the electrical component, providing electrical connection thereto. The sheet may have a tail onto which the traces extend for connection to external circuitry.

    Abstract translation: 电气部件附件，用于将分立部件固定到刚性电路板上，而不使用电镀通孔。 整体片材具有膜部分和折片部分。 膜部分位于电路板的一侧。 翼片部分围绕电路板的边缘缠绕并且粘合地固定到板的另一侧。 电气部件设置在翼片部分和板之间，以通过翼片部分固定到其上。 片材具有与电气部件的引线接触的导电迹线，提供与其电连接。 片材可以具有尾部，迹线延伸到其上用于连接到外部电路。

    Laminated membrane switch
    13.
    发明授权
    Laminated membrane switch 失效
    层压薄膜开关

    公开(公告)号：US4314114A

    公开(公告)日：1982-02-02

    申请号：US118410

    申请日：1980-02-04

    Applicant: Willis A. Larson

    Inventor： Willis A. Larson

    IPC: H01H13/702 ,  H01H13/02

    CPC classification number: H01H13/702 ,  H01H2209/014 ,  H01H2227/004 ,  H01H2227/006 ,  H01H2229/03 ,  H01H2229/038 ,  Y10T29/49105

    Abstract: An assembly for manufacture of a membrane switch includes a composite formed of first and second layers, one substantially thicker than the other, with the composite having a size and shape to form both outer members of a membrane switch when folded back upon itself. Metallic conductors, preferably silver, are formed on the composite prior to folding. A spacer member having spaced openings therein and extending over approximately half of the area of the composite is positioned thereupon. After the composite is folded over the spacer member, laminating heat and pressure are applied to the assembly with the result that a bond is formed between the spacer member and composite and between the layers of the composite.

    Abstract translation: 用于制造膜开关的组件包括由第一层和第二层组成的复合材料，其一层基本上比另一层厚，其中复合材料具有尺寸和形状，以便当折叠在其上时形成膜开关的外部构件。 金属导体，优选银，在折叠之前在复合材料上形成。 在其中具有间隔开口并且延伸超过复合材料区域的大约一半的间隔件被放置在其上。 在将复合材料折叠在间隔件上之后，将层压热和压力施加到组件上，结果是在间隔件和复合材料之间以及复合材料层之间形成粘结。

    Isolation membrane switch
    14.
    发明授权
    Isolation membrane switch 失效
    隔离膜开关

    公开(公告)号：US4237358A

    公开(公告)日：1980-12-02

    申请号：US36353

    申请日：1979-05-07

    Applicant: Willis A. Larson ,  Steven D. Vannice ,  Joseph E. Jesson

    Inventor： Willis A. Larson ,  Steven D. Vannice ,  Joseph E. Jesson

    IPC: H01H13/702 ,  H01H3/02 ,  H01H3/12

    CPC classification number: H01H13/702 ,  H01H2209/014 ,  H01H2217/016 ,  H01H2227/002 ,  H01H2239/044

    Abstract: A membrane switch includes a substrate having a plurality of first conductors formed thereon and a flexible membrane having a plurality of second conductors formed thereon. A spacer is positioned between the substrate and membrane and there are openings in the spacer in register with aligned first and second conductors. To isolate the switch membrane, there is a pressure reduction membrane overlying and in contact with the exterior of the switch membrane and an isolation membrane positioned on top of the pressure reduction membrane. Areas of the pressure reduction membrane in register with the spacer openings are formed to reduce the required force thereupon to effect movement of the switch membrane.

    Abstract translation: 膜开关包括其上形成有多个第一导体的基板和形成有多个第二导体的柔性膜。 间隔件位于基底和膜之间，并且间隔物中有开口，与第一和第二导体对齐。 为了隔离开关膜，存在覆盖并与开关膜的外部接触的减压膜和位于减压膜顶部的隔离膜。 形成与间隔开口对准的减压膜的区域，以减小其上所需的力来实现开关膜的移动。

    Entry error elimination for data systems
    15.
    发明授权
    Entry error elimination for data systems 失效
    数据系统进入错误消除

    公开(公告)号：US4633228A

    公开(公告)日：1986-12-30

    申请号：US606428

    申请日：1984-05-02

    Applicant: Willis A. Larson

    Inventor： Willis A. Larson

    IPC: G06F3/023 ,  G06F11/00 ,  G06F11/267 ,  H01H13/702 ,  H03M11/00 ,  H03M11/02 ,  G06F3/02

    CPC classification number: G06F11/2221 ,  G06F11/0754 ,  G06F3/023 ,  H01H13/702 ,  H03M11/003 ,  H03M11/02 ,  H01H2217/012 ,  H01H2239/012

    Abstract: Switch assembly, such as a keyboard switch assembly, comprises a plurality of polled conductors, a plurality of scanned conductors, and switch sites, each of which has an associated scanned conductor and polled conductor adjacent thereto. When a switch at each switch site is closed, the associated polled conductor is connected to the associated scanned conductor and closure of the switch is determined by a polling and scanning means. Each switch has a switch resistor in series therewith and each scanned conductor has a scanned conductor resistor between the scanned conductor and one side of the power supply. The analyzer associated with the switch assembly has the ability to determine whether a signal indicating that a particular switch is closed is a true signal caused by actual closure of the signal or alternatively is a phantom signal caused by the closure of a group of switches in the switch matrix. The determination is made on the basis of the difference in voltage detected when a true switch closure is made and when a phantom switch closure is indicated.

    Abstract translation: 诸如键盘开关组件的开关组件包括多个轮询导体，多个扫描导体和开关位置，每个开关位置具有与其相邻的相关联的扫描导体和轮询导体。 当每个开关位置处的开关闭合时，相关联的轮询导体连接到相关联的扫描导体，并且通过轮询和扫描装置确定开关的闭合。 每个开关具有串联的开关电阻器，并且每个扫描的导体在扫描的导体和电源的一侧之间具有扫描的导体电阻器。 与开关组件相关联的分析器具有确定指示特定开关闭合的信号是否是由信号的实际闭合引起的真实信号，或者替代地是由于在一个开关组中的一组开关的闭合引起的幻影信号 开关矩阵。 基于当进行真正的开关闭合时以及当指示幻影开关闭合时检测到的电压的差异来确定。

    Keyboard assembly and components therefor
    17.
    发明授权
    Keyboard assembly and components therefor 失效
    键盘组件及其组件

    公开(公告)号：US4367380A

    公开(公告)日：1983-01-04

    申请号：US181708

    申请日：1980-08-27

    Applicant: Willis A. Larson ,  Herbert C. Naylor

    Inventor： Willis A. Larson ,  Herbert C. Naylor

    IPC: H01H3/12 ,  H01H13/56 ,  H01H13/705 ,  H01H13/70

    CPC classification number: H01H13/705 ,  H01H13/564 ,  H01H2013/566 ,  H01H3/122

    Abstract: A keyboard switch assembly includes a membrane switch matrix formed on a baseplate. There are a plurality of individual pressure applicators or keys which are mounted on the baseplate in a keyboard array. The keys are supported adjacent the membrane switch panel with each key being used to effect contact closure at a particular area of the membrane switch. Each key includes a movable plunger, a housing to support the plunger, a first coil spring biasing the plunger away from the membrane switch and a keytop affixed to the plunger. A second coil spring is seated upon the membrane switch matrix and provides the means for application of electrical contact closure pressure. Each key housing includes an enclosure which is accessible from the top of the housing. The closure is adapted to receive and retain a cam follower which controls movement of the plunger. The key housings further include a hook which can support a torsion rod. A torsion rod may be attached to an elongated keytop in an adjacent row to prevent binding of the plunger carrying the elongated keytop.

    Abstract translation: 键盘开关组件包括形成在基板上的薄膜开关矩阵。 存在多个单独的压力施加器或按键，其安装在基板上的键盘阵列中。 密封件被支撑在薄膜开关面板附近，每个键用于在薄膜开关的特定区域处实现接触闭合。 每个键包括可移动柱塞，用于支撑柱塞的壳体，将柱塞偏离膜开关的第一螺旋弹簧和固定到柱塞的键帽。 第二个螺旋弹簧位于膜开关矩阵上，并提供施加电接触闭合压力的装置。 每个键壳体包括可从壳体的顶部接近的外壳。 闭合件适于接收和保持控制柱塞运动的凸轮从动件。 钥匙外壳还包括可以支撑扭力杆的钩子。 扭杆可以附接到相邻行中的细长键顶，以防止携带细长键顶的柱塞的装订。

    Connector for attaching an electrical component to a flat sheet
    18.
    发明授权
    Connector for attaching an electrical component to a flat sheet 失效
    用于将电气部件附接到平板的连接器

    公开(公告)号：US4320272A

    公开(公告)日：1982-03-16

    申请号：US228319

    申请日：1981-01-26

    Applicant: Willis A. Larson

    Inventor： Willis A. Larson

    IPC: H01H13/83 ,  H05K1/11 ,  H05K3/30 ,  H05K3/32 ,  H01H9/02

    CPC classification number: H01H13/83 ,  H05K3/325 ,  H05K3/326 ,  H05K1/118 ,  H05K2201/09063 ,  H05K2201/091 ,  H05K2201/096 ,  H05K2201/10106 ,  H05K2201/1059 ,  H05K2201/10651 ,  H05K3/306

    Abstract: This invention relates to an arrangement for attaching discrete electrical components to a generally flat layer of sheet material. Both mechanical and electrical connections are provided by the attachment elements of the present invention. One form of the invention is directed to a membrane switch keyboard wherein one of the layers of the membrane switch has a tail extending therefrom. The tail has a free end which is adhesively secured to some portion of the keyboard. Conductive traces are formed on the tail and extend to the free end where they contact the leads of an electrical component. The component is held between the tail and the keyboard. In another aspect, which may be applied to the membrane switch keyboard just described, the invention includes a sheet material having two or more slits cut therein for each of the component's leads. The slits are cut in a portion of the sheet having conductive traces formed thereon. The leads of the component are then interlaced through the tabs created by the slits to both mechanically and electrically connect the component to the sheet.

    Abstract translation: 本发明涉及一种用于将分立的电气部件连接到基本平坦的片状材料层的装置。 机械和电气连接都由本发明的附接元件提供。 本发明的一种形式涉及一种薄膜开关键盘，其中薄膜开关的一个层具有从其延伸的尾部。 尾部具有粘结地固定在键盘的一部分上的自由端。 导电迹线形成在尾部并延伸到自由端，在它们接触电气部件的引线的位置。 组件保持在尾部和键盘之间。 在另一方面，其可以应用于刚刚描述的薄膜开关键盘，本发明包括一种薄片材料，其中每个部件引线上都有两个或更多个切口。 在其上形成有导电迹线的片材的一部分中切割狭缝。 然后将部件的引线通过由狭缝产生的突片交错，以将部件机械地和电连接到片材上。

    Membrane switch construction and method for making same
    19.
    发明授权
    Membrane switch construction and method for making same 失效
    膜开关结构及其制作方法

    公开(公告)号：US4307275A

    公开(公告)日：1981-12-22

    申请号：US160651

    申请日：1980-06-18

    Applicant: Willis A. Larson ,  Philip Bierhuizen ,  Anthony Van Zeeland

    Inventor： Willis A. Larson ,  Philip Bierhuizen ,  Anthony Van Zeeland

    IPC: H01H13/702 ,  H01H13/807 ,  H01H9/00 ,  H01H13/02

    CPC classification number: H01H13/807 ,  H01H13/702 ,  H01H2207/016 ,  H01H2209/026 ,  H01H2225/004 ,  H01H2229/002 ,  Y10T29/49105

    Abstract: A membrane switch construction and method for making same. A plate of relatively rigid, flat material is coated with an insulative cover and electrical conductors are formed thereon. A membrane of flexible, plastic material with conductors formed on the underside thereof overlies the plate. A non-conductive spacing means interposed between the conductors has holes in register with the conductors. The spacing means normally holds the conductors in spaced, non-contacting relation. The conductors are movable through the holes in the spacing means in response to pressure on the exterior of the membrane. One or the other or both of the sets of conductors may comprise two tiers of conductors separated by an isolation layer of non-conductive material. Holes are appropriately positioned in the isolation layer to permit access to the buried tier of conductors. Interconnect holes may also be provided in the spacing means to permit electrical connection between the conductors, thus forming a multi-layer conductive system.

    Abstract translation: 一种薄膜开关结构及其制造方法。 具有相对刚性的扁平材料的板被覆有绝缘盖，并在其上形成电导体。 具有形成在其下侧的导体的柔性塑料材料的膜覆盖在板上。 介于导体之间的非导电间隔装置具有与导体对准的孔。 间隔装置通常保持导体间隔开，非接触的关系。 导体可以响应于膜外部的压力而移动通过间隔装置中的孔。 导体组中的一个或另一个或两个可以包括由非导电材料的隔离层隔开的两层导体。 孔适当地定位在隔离层中，以允许进入埋入层的导体。 也可以在间隔装置中设置互连孔，以允许导体之间的电连接，从而形成多层导电系统。

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