公开(公告)号：US6015970A

公开(公告)日：2000-01-18

申请号：US988922

申请日：1997-12-11

Applicant: Andrew T. Guzik ,  David L. Ellis ,  Rudy Yorio ,  Steven D. Pratt ,  Sivakumar Muthuswamy

Inventor： Andrew T. Guzik ,  David L. Ellis ,  Rudy Yorio ,  Steven D. Pratt ,  Sivakumar Muthuswamy

IPC: G01D5/347 ,  G01D5/34

CPC classification number: G01D5/34784

Abstract: An optical switch assembly for a two-way radio has electrical and mechanical subassemblies. The electrical portion consists an IR emitter (12) and a pair of IR receivers (14,16) strategically positioned upon a printed circuit board (10). The mechanical portion consists of a rotatable interposer mechanism (20) interconnected to a knob (35) on the radio via a shaft (28). The interposer has inner (22) and outer (24) concentric cylindrical walls. The outer wall controls the light transmitted between the emitter and one of the receivers (16), ultimately controlling the On-Off state of the radio. The inner wall has an integrated gray-scale graphic which controls the transmission of light between the emitter and the other IR receiver (14), ultimately controlling the audio output of the radio.

Abstract translation: 用于双向无线电的光学开关组件具有电气和机械子组件。 电气部分包括红外发射器（12）和一对策略地定位在印刷电路板（10）上的红外接收器（14,16）。 机械部分由经由轴（28）互连到无线电装置上的旋钮（35）的可旋转插入器机构（20）组成。 内插件具有内（22）和外（24）同心圆柱形壁。 外壁控制在发射器和其中一个接收器（16）之间传输的光，最终控制无线电的开 - 关状态。 内壁具有集成的灰度图形，其控制发射器和另一IR接收器（14）之间的光的传输，最终控制无线电的音频输出。

公开(公告)号：US5818005A

公开(公告)日：1998-10-06

申请号：US840004

申请日：1997-04-24

Applicant: Steven D. Pratt ,  Sivakumar Muthuswamy ,  Robert W. Pennisi

Inventor： Steven D. Pratt ,  Sivakumar Muthuswamy ,  Robert W. Pennisi

IPC: B23H1/04 ,  B29C67/00

CPC classification number: B23H1/04 ,  B29C67/0051

Abstract: A rapid method for fabricating a precision electrical discharge machining (EDM) electrode (71). A set of master parts (31, 32) in the shape of the EDM electrode is formed using stereolithography or other rapid prototyping techniques (106). The master parts are assembled and a flexible material is molded (109, 56, 57) in them to form a flexible mold (111, 61). The flexible mold is then filled (115) with electrically conductive powder and the powder is cold isostatically pressed (117) to solidify it and form the EDM electrode.

Abstract translation: 一种制造精密放电加工（EDM）电极（71）的快速方法。 使用立体光刻技术或其它快速成型技术（106）形成EDM电极形状的一组主要部件（31,32）。 主部件被组装并且在其中模制柔性材料（109,56,57）以形成柔性模具（111,61）。 然后用导电粉末填充柔性模具（115），并将粉末进行冷等静压（117）以使其固化并形成EDM电极。

公开(公告)号：US5681515A

公开(公告)日：1997-10-28

申请号：US631755

申请日：1996-04-12

Applicant: Steven D. Pratt ,  Andrzej T. Guzik ,  Robert Leon ,  Sivakumar Muthuswamy

Inventor： Steven D. Pratt ,  Andrzej T. Guzik ,  Robert Leon ,  Sivakumar Muthuswamy

IPC: B29C45/14 ,  H01H13/705 ,  B29C39/12 ,  B29C39/30

CPC classification number: H01H13/705 ,  B29C45/14 ,  B29L2031/466 ,  H01H2209/014 ,  H01H2209/016 ,  H01H2219/028 ,  H01H2219/034 ,  H01H2221/07 ,  H01H2229/044 ,  H01H2229/047 ,  H01H2229/05 ,  H01H2233/004 ,  Y10T29/4998

Abstract: A method of fabricating an elastomeric keypad having a hard key cap over the elastomeric key. A sheet (50) containing a key cap (24) with graphics (26) is placed onto a first plate (52) of a molding tool (54). A second plate (58) is then attached to the first plate, covering the graphic film. The first plate and the second plate interact in a manner such that the key cap containing the graphic is excised out of the film and retained in the molding tool assembly. The waste material (60) surrounding the key cap is displaced away from its original position. A third plate (64) is then attached to the assembled first and second plates. The assembled molding tool creates a cavity (66) that is representative of the keypad assembly, and an elastomeric material is molded into that cavity. Afar the elastomeric material (12) solidifies, the tool is opened, the molded keypad assembly (10) containing the integrally attached rigid key caps is removed.

Abstract translation: 一种制造弹性体键盘的方法，该弹性键盘在弹性键上具有硬键帽。 包含具有图形（26）的键帽（24）的片材（50）被放置在模制工具（54）的第一板（52）上。 然后将第二板（58）附接到第一板，覆盖图形膜。 第一板和第二板以这样的方式相互作用，使得包含图形的钥匙盖被从膜中排出并保持在模制工具组件中。 围绕钥匙盖的废料（60）远离其原始位置。 然后将第三板（64）附接到组装的第一和第二板。 组装的模制工具产生代表键盘组件的空腔（66），并且将弹性体材料模制到该空腔中。 弹性体材料（12）固定时，打开工具，除去包含整体连接的刚性密封帽的模制键盘组件（10）。