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公开(公告)号：US4417114A
公开(公告)日：1983-11-22
申请号：US348998
申请日：1982-02-16
Applicant: Willis A. Larson
Inventor： Willis A. Larson
CPC classification number: H01H13/83 , 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.
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公开(公告)号：US4403272A
公开(公告)日：1983-09-06
申请号：US155562
申请日：1980-06-02
Applicant: Willis A. Larson , David A. Christensen , Anthony J. VanZeeland
Inventor： Willis A. Larson , David A. Christensen , Anthony J. VanZeeland
IPC: H01H13/702 , H05K3/36 , H05K3/40 , H05K1/00
CPC classification number: H05K3/4007 , H01H13/702 , H05K3/365 , H01H2207/004 , H01H2207/006 , H01H2207/008 , H01H2229/002 , H05K2201/0355 , H05K2201/0367 , H05K2201/0382 , H05K2201/091 , H05K2201/09881 , H05K2201/09909
Abstract: A switching device, for example a membrane switch, having an interconnect tail for electrically connecting the switching device to a circuit board. The tail has conductive traces formed thereon, which are in circuit with the conductive elements of the switching device. The conductive traces on the tail are raised from the plane of the tail thus making the traces the most prominent part of the tail. This structure assures electrical contact with the circuit board.
Abstract translation: 具有用于将开关装置电连接到电路板的互连尾部的开关装置，例如薄膜开关。 尾部具有形成在其上的导电迹线，其与开关装置的导电元件电路连接。 尾部上的导电迹线从尾部的平面上升起，使轨迹成为尾部的最突出部分。 该结构确保与电路板的电接触。
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公开(公告)号：US4418239A
公开(公告)日：1983-11-29
申请号：US295528
申请日：1981-08-24
Applicant: Willis A. Larson , Anthony J. Van Zeeland
Inventor： Willis A. Larson , Anthony J. Van Zeeland
CPC classification number: H01B7/08 , H01R13/6467 , H05K1/0219 , H05K1/118 , H05K3/4685 , H05K1/095 , H05K2201/0715 , H05K2201/09618 , H05K3/4664
Abstract: A flexible connector includes a flat thin insulating base and a plurality of spaced conductive paths formed thereon. There are means for providing selective interconnection between certain conductive paths on the base, which means includes a thin defined insulating patch positioned upon a selective area of the base and conductive paths. A connecting conductive path is formed on the insulating patch and extends therethrough into electrical contact with said certain conductive paths.
Abstract translation: 柔性连接器包括平坦的薄绝缘基座和形成在其上的多个间隔开的导电路径。 存在用于在基底上的某些导电路径之间提供选择性互连的装置，这意味着包括位于基底和导电路径的选择区域上的薄限定绝缘贴片。 连接导电路径形成在绝缘贴片上并且延伸穿过其与所述某些导电路径电接触。
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公开(公告)号：US4320573A
公开(公告)日：1982-03-23
申请号：US154913
申请日：1980-05-30
Applicant: Willis A. Larson
Inventor： Willis A. Larson
CPC classification number: H01H3/141 , Y10T29/49105
Abstract: A membrane switch of the type actuated by bending is manufactured from a blank of flexible sheet material. An appropriate pattern of conductors is silk-screened on first and second portions of the blank. Then an insulative spacing means is silk-screened onto the first and second portions in a symmetrical pattern. Adhesive is applied to the blank. Hinges are formed along the line of symmetry of the spacing means and the second portion of the blank is folded over the first portion along these hinges to complete the switch. The adhesive holds the folded switch together with the first portion of the blank forming the switch substrate and the second portion forming the membrane.
Abstract translation: 通过弯曲致动类型的膜开关由柔性片材的坯料制成。 在坯料的第一和第二部分上将导体的适当图案丝印。 然后将绝缘间隔装置以对称图案丝网印刷在第一和第二部分上。 将粘合剂施加到坯料上。 沿着间隔装置的对称线形成铰链，并且坯料的第二部分沿着这些铰链折叠在第一部分上以完成开关。 粘合剂将折叠的开关与形成开关基板的坯料的第一部分一起保持，并且第二部分形成膜。
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公开(公告)号：US3992634A
公开(公告)日：1976-11-16
申请号：US576228
申请日：1975-05-09
Applicant: Willis A. Larson
Inventor： Willis A. Larson
CPC classification number: H03K17/962 , Y10T307/766
Abstract: A touch actuated electronic switch is disclosed including at least one surface, accessible to the touch of a human, interconnected with an active circuit and protected against static electricity. In the preferred embodiment, the active circuit is differential sensing circuitry, preferably, dual input logic circuitry, and most requiring protection from static electricity at this time, a MOS exclusive OR gate. In the preferred embodiment where the interconnection between the logic circuit and the surfaces is desired to include long wires, a twisted pair of wires is used if increased noise immunity or noise protection is desired. The twisted pair is interconnected at one end with one wire electrically connected to the touch surface and the other substantially equal length wire being unconnected or connected to a second touch surface. Both wires are connected at their other ends to the dual inputs to the logic circuitry. Also connected to the dual inputs are dual impedances which, when taken together with the impedance of the body of the human operator, provide protection against static or other high potential electricity. A common mode alternating voltage signal is then provided through input circuitry to the logic circuitry, and the output of the logic circuitry is interconnected to an integrator, in the preferred embodiment a capacitor. The integrator is, in turn in the preferred embodiment, connected to an additional amplifier. The output terminals of the additional amplifier, in the preferred embodiment, act as an electrical switch with the electrical impedance across the output terminals in a first state assuming a high impedance, electrical open circuit, or "OFF" switch condition and in the second state assuming a low impedance, electrical short circuit, or "ON" switch condition to thereby approximate the two states of a conventional mechanical electrical switch, the condition assumed by the second amplifier being dependent upon whether or not an operator has touched a touch surface.
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Patent Agency Ranking
公开(公告)号：US4394547A
公开(公告)日：1983-07-19
申请号：US343310
申请日：1982-01-27
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
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.
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公开(公告)号：US4317013A
公开(公告)日：1982-02-23
申请号：US138656
申请日：1980-04-09
Applicant: Willis A. Larson
Inventor： Willis A. Larson
IPC: H01H13/702 , H01H13/703 , H01H9/00
CPC classification number: H01H13/702 , H01H13/703 , H01H2211/01 , H01H2211/014 , H01H2213/01 , H01H2227/024 , H01H2229/028 , Y10T29/49105
Abstract: A method and apparatus for forming a membrane switch of the type having a flexible membrane, a substrate, first and second conductors formed on the membrane and substrate and spacing means disposed between the first and second conductors. The spacing means is applied to either the membrane or substrate in a uniform pattern of individual spacer areas. The spacer areas are applied in liquid form which is cured or allowed to dry. The pattern of spacer areas can be applied without regard to the location of the conductors. The size, spacing and thickness of the spacer areas allow contact between aligned first and second conductors when the exterior of the membrane is subjected to pressure. Thus the same pattern of spacer areas can be used with any arrangement of conductors.
Abstract translation: 一种用于形成具有柔性膜，基板，形成在膜和基板上的第一和第二导体以及设置在第一和第二导体之间的间隔装置的类型的薄膜开关的方法和装置。 间隔装置以单个间隔区域的均匀图案施加到膜或基底上。 间隔物区域以液体形式施用，其被固化或允许干燥。 可以应用间隔区域的图案而不考虑导体的位置。 当膜的外部经受压力时，间隔区域的尺寸，间距和厚度允许对准的第一和第二导体之间的接触。 因此，与导体的任何布置可以使用相同的间隔区域图案。
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公开(公告)号：US4002923A
公开(公告)日：1977-01-11
申请号：US500501
申请日：1974-08-26
Applicant: Willis A. Larson , David E. Colglazier
Inventor： Willis A. Larson , David E. Colglazier
CPC classification number: H03K17/962 , Y10T307/766
Abstract: An electronic switch which has no moving parts and is actuated by the capacitance of an operator providing a connection between earth ground and an input to the electronics associated with the switch is disclosed. The electronic switch in the preferred embodiment, includes a plate accessible to the tough of a human operator electrically connected to a first amplifier, and particularly to the input which is isolated from and thus oscillating with respect to earth ground. The output of the first amplifier is simultaneously connected to one end of a storage capacitor, having its other end connected to earth ground, and to one end of a high impedance. A second amplifier, is connected to the other end of the high impedance to provide a switched output, with the switched output having a first state for approximating an electrical short circuit and a second state for approximating an electrical open circuit.
Abstract translation: 公开了一种电子开关，其不具有移动部件并由操作者的电容驱动，该操作者提供接地和与开关相关联的电子装置的输入之间的连接。 在优选实施例中的电子开关包括可与电连接到第一放大器的人类操作者的韧性可访问的板，并且特别地涉及与地面隔离并因此相对于地面摆动的输入。 第一放大器的输出同时连接到存储电容器的一端，其另一端连接到大地，并连接到高阻抗的一端。 第二放大器连接到高阻抗的另一端以提供开关输出，其中开关输出具有用于近似电短路的第一状态和用于近似电开路的第二状态。
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公开(公告)号：US4559426A
公开(公告)日：1985-12-17
申请号：US203708
申请日：1980-11-03
Applicant: Anthony J. Van Zeeland , Willis A. Larson , David A. Christensen
Inventor： Anthony J. Van Zeeland , Willis A. Larson , David A. Christensen
IPC: H01H13/702 , H01H3/12
CPC classification number: H01H13/702 , H01H2209/01 , H01H2221/046
Abstract: A membrane switch panel has patches of low creep material attached to the membrane at portions thereof which are subject to creep. Membrane switch panels may be incorporated in keyboards wherein some of the keys may be of the alternate action type. If the alternate action keys are left in an actuated position and the keyboard is stored at a high temperature, the membrane material may be subject to creep. The present invention prevents this by including a stainless steel patch on the membrane under each alternate action type key. The stainless steel patch will not creep at elevated storage temperatures. The patch causes the membrane to be restored to its original location even after being subjected to conditions which would cause the membrane material to creep.
Abstract translation: 薄膜开关面板在其受到蠕变的部分处具有附着到膜的低蠕变材料的贴片。 膜开关面板可以结合在键盘中，其中一些键可以是替代动作类型。 如果替代动作键处于致动位置并且键盘被存储在高温下，则膜材料可能经受蠕变。 本发明通过在每个替代动作型键下的膜上包括不锈钢贴片来防止这种情况。 不锈钢贴片不会在升高的储存温度下蠕变。 即使在受到会使膜材料蠕变的条件之后，贴剂也使膜恢复到其原始位置。
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公开(公告)号：US4433223A
公开(公告)日：1984-02-21
申请号：US295717
申请日：1981-08-24
Applicant: Willis A. Larson , Anthony J. Van Zeeland
Inventor： Willis A. Larson , Anthony J. Van Zeeland
IPC: A23C19/032 , H01H13/702 , H05K3/32 , H05K3/36 , H01H3/12
CPC classification number: H05K3/361 , A23C19/0326 , H01H13/702 , H01H2207/008 , H01H2207/01 , H01H2207/016 , H01H2229/028 , H05K2201/0133 , H05K2201/0323 , H05K2201/10681 , H05K2203/0278 , H05K3/321
Abstract: A conductive adhesive for use in membrane switch and printed circuit technologies consists essentially of a resin modified copolymer of butadiene and styrene and a conductive element. The conductive element is preferably a material such as acetylene black and is more than two percent and less than 40 percent by weight of the adhesive. The conductive adhesive may be used to secure the membrane and substrate of a membrane-type switch thereby providing a conductive path between the membrane and substrate. The adhesive may also be used to attach a membrane switch tail to an associated printed circuit board or the like, again with the conductive properties of the adhesive providing a current path as well as the conventional adhesion between the two parts.
Abstract translation: 用于薄膜开关和印刷电路技术的导电粘合剂主要由丁二烯和苯乙烯的树脂改性共聚物和导电元素组成。 导电元件优选是诸如乙炔黑的材料，并且是粘合剂重量的2％以上且小于40％。 可以使用导电粘合剂来固定膜型开关的膜和基底，从而在膜和基底之间提供导电路径。 粘合剂还可以用于将膜开关尾部附接到相关联的印刷电路板等，同时粘合剂的导电性质提供电流路径以及两部分之间的常规粘合。
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