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公开(公告)号：US4039906A
公开(公告)日：1977-08-02
申请号：US598558
申请日：1975-07-24
Applicant: Chander M. Wahi , Robert J. Baumler
Inventor： Chander M. Wahi , Robert J. Baumler
CPC classification number: H01G5/0136
Abstract: A variable capacitor having a ceramic stator with a flat major surface for engaging a flat conductive rotor plate mounted on a shaft extending through the stator. The other major surface of the stator has a transverse slot having a capacitance forming electrode over the bottom portion that is substantially parallel to the flat major surface. A spring biased rotor terminal is affixed to the end of the shaft extending through the stator.
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公开(公告)号：US4037482A
公开(公告)日：1977-07-26
申请号：US577062
申请日：1975-05-13
Applicant: Alarico A. Valdettaro
Inventor： Alarico A. Valdettaro
CPC classification number: H01G5/04 , H01G5/06 , H03J1/08 , Y10T29/43 , Y10T29/4981 , Y10T29/49838 , Y10T29/49901
Abstract: A highly accurate UHF television tuner utilizes an improved housing and an improved mounting system for securing the tuning rotor and stator within the housing. The housing is fabricated from sheet metal that is welded at the corners to provide mechanical rigidity, and soldered at the corners to provide a good electrical contact. A cover is placed over an open end of the housing and soldered at the corners further to increase the mechanical rigidity of the housing. The depth of the housing is increased to reduce the effects of the housing on the tuner elements. An eyelet is mounted in one end of the housing for supporting the rotor shaft, and the stator is mounted by insulating posts that are inserted through sleeves integrally formed in the housing. An improved contact for more effectively grounding the rotor shaft to the housing is provided, and an improved detenting system is provided for the selector shaft to reduce the effects of inertial creep. An improved method is provided for mounting the rotor plates to the rotor shaft and for mounting the stator plates to the housing to improve the accuracy of alignment between the rotor and stator plates.
Abstract translation: 高精度的UHF电视调谐器利用改进的壳体和改进的安装系统来将调谐转子和定子固定在壳体内。 外壳由金属板制成，焊接在拐角处以提供机械刚性，并在拐角处焊接以提供良好的电接触。 将盖放置在壳体的开口端上，并进一步在拐角处焊接以增加壳体的机械刚性。 壳体的深度增加以减少外壳对调谐器元件的影响。 安装在壳体的一端的孔眼用于支撑转子轴，并且定子由通过一体地形成在壳体中的套筒插入的绝缘柱安装。 提供了一种改进的接触件，用于更有效地将转子轴接地到壳体，并且为选择器轴提供了改进的制动系统，以减少惯性蠕变的影响。 提供了一种改进的方法，用于将转子板安装到转子轴上并将定子板安装到壳体上，以提高转子和定子板之间的对准精度。
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公开(公告)号：US3996503A
公开(公告)日：1976-12-07
申请号：US587698
申请日：1975-06-17
Applicant: Sohji Ichikawa
Inventor： Sohji Ichikawa
IPC: H01G5/06
CPC classification number: H01G5/06
Abstract: A variable capacitor includes a plurality of stator plates supported on spaced parallel rods. A plurality of rotor plates supported on a shaft are arranged so that each rotor plate is placed a predetermined distance from the surface of the adjacent stator plate. This is accomplished by spacer members disposed between the adjacent stator plates as well as between the adjacent rotor plates. Each spacer member is made of metal wire, with a circular cross-section, and is shaped in form of a ring. Use of the metal wire having a predetermined dimension is much more convenient than a tube or sleeve. Consequently fixing the distance between the stator plates and between the rotor plates can be performed with high accuracy.
Abstract translation: 可变电容器包括支撑在间隔开的平行杆上的多个定子板。 多个安装在轴上的转子板被布置成使得每个转子板与相邻的定子板的表面放置一预定的距离。 这通过设置在相邻的定子板之间的间隔件以及相邻的转子板之间来实现。 每个间隔件由具有圆形横截面的金属线制成，并且形状为环形。 使用具有预定尺寸的金属线比管或套管更方便。 因此，可以高精度地进行固定定子板之间和转子板之间的距离。
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公开(公告)号：US3883937A
公开(公告)日：1975-05-20
申请号：US50231274
申请日：1974-09-03
Applicant: TEXAS INSTRUMENTS INC
Inventor： ALEXANDER DALE BRUCE , JOHNSTONE JAMES HAYDEN
CPC classification number: H01G4/30 , Y10T29/43 , Y10T29/435
Abstract: A microminiature electronic trimmer capacitor is comprised of two ceramic discs fastened together by a shaft with a head on one end and a tensioning and fastening device at the other end. The ceramic discs are essentially identical, one being utilized as the rotor and the other being utilized as the stator. The rotor electrode is applied to the ceramic disc after the rotor is fired and lapped. The stator is formed by affixing onto one of its flat surfaces a pair of shaped metal pieces.
Abstract translation: 微型电子微调电容器由两个陶瓷盘组成，两个陶瓷盘通过一个轴固定在一起，一端具有头部，另一端由一个张紧和紧固装置组成。 陶瓷盘基本相同，一个用作转子，另一个用作定子。 转子电极在转子烧结和研磨后施加到陶瓷盘上。 定子通过将一对成形的金属片固定在其平坦表面中的一个上而形成。
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公开(公告)号：US3784897A
公开(公告)日：1974-01-08
申请号：US3784897D
申请日：1972-02-17
Applicant: LANDIS TOOL CO
Inventor： NORRIE G
CPC classification number: G01D5/2412 , G01D5/2415 , H04R19/00
Abstract: A capacitive transducer in which a pair of exciter electrodes connected to an AC source are disposed in common planes to present a gap. A pick-off electrode is disposed in another plane and extends on either side of the gap. A conductive screen is interposed between the exciter electrodes and the pick-off electrode and is connected to ground potential so as to block capacitive coupling between the exciter electrodes and the pickoff electrode except as between discrete areas of the exciter electrodes and an opposite area of the pick-off electrode exposed or coupled through an aperture in the screen.
Abstract translation: 电容换能器，其中连接到AC源的一对激励器电极设置在公共平面中以呈现间隙。 拾取电极设置在另一平面中并且在间隙的任一侧上延伸。 导电屏插在激励器电极和拾取电极之间，并连接到接地电位，以阻止激励器电极和拾取电极之间的电容耦合，除了在激励器电极的离散区域之外以及相对的区域 通过屏幕中的孔露出或耦合的拾取电极。
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Patent Agency Ranking
公开(公告)号：US3277353A
公开(公告)日：1966-10-04
申请号：US44782365
申请日：1965-04-13
Applicant: PLESSEY UK LTD
Inventor： JENKINS STUART M
IPC: H01G5/06
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公开(公告)号：US1984464A
公开(公告)日：1934-12-18
申请号：US65940633
申请日：1933-03-02
Applicant: GEN INSTRUMENT CORP
Inventor： SAMUEL COHEN
IPC: H01G5/06
CPC classification number: H01G5/06
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公开(公告)号：US1977289A
公开(公告)日：1934-10-16
申请号：US63623032
申请日：1932-10-04
Applicant: HEINTZ & KAUFMAN
Inventor： SCOFLELD PHILIP F
IPC: H01G5/06
CPC classification number: H01G5/06 , Y10T74/19047 , Y10T74/19623
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公开(公告)号：US1966918A
公开(公告)日：1934-07-17
申请号：US59924132
申请日：1932-03-16
Applicant: GEN INSTRUMENT CORP
Inventor： SAMUEL COHEN
IPC: H01G5/06
CPC classification number: H01G5/06
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