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公开(公告)号：US4075568A
公开(公告)日：1978-02-21
申请号：US659048
申请日：1976-02-18
Applicant: David Vaughan Watkins
Inventor： David Vaughan Watkins
Abstract: A continuously variable control device, e.g. a volume control in an amplifier, is so designed that after being set to a desired condition by means of the user's finger it reverts to its normal (unset) condition, means being provided to memorize or store the position to which the control was set.
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公开(公告)号：US4032880A
公开(公告)日：1977-06-28
申请号：US664707
申请日：1976-03-08
Applicant: Aldo Di Michele , John D. Gallas , Frank W. Grimm
Inventor： Aldo Di Michele , John D. Gallas , Frank W. Grimm
IPC: H01C10/28
CPC classification number: H01C10/28
Abstract: An electrical device is disclosed which is small in size and easily assembled. The device employs a rotatable housing and a grooved geometrically programmed disc to locate a ball contact at a desired position on a substrate. The substrate may comprise a resistor, spaced contacts or other conductive surface, and the movable ball contact may change circuit conditions incrementally when compared with the degree of movement of the drive for the ball. The ball has two points of contact with the grooved disc reducing noise and wear. The grooved disc is readily replaceable for changing the operating characteristics of the device.
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公开(公告)号：US2476799A
公开(公告)日：1949-07-19
申请号：US74158947
申请日：1947-04-15
Applicant: WILLIAM BERTHIEZ CHARLES
Inventor： WILLIAM BERTHIEZ CHARLES
IPC: H01C10/28
CPC classification number: H01C10/28
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公开(公告)号：US2368710A
公开(公告)日：1945-02-06
申请号：US45898542
申请日：1942-09-19
Applicant: BROWN INSTR CO
Inventor： HESSEY FREDERIC E
IPC: H01C10/28
CPC classification number: H01C10/28
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公开(公告)号：US1327135A
公开(公告)日：1920-01-06
申请号：US23411718
申请日：1918-05-13
Applicant: US LIGHT & HEAT CORP
Inventor： BLISS WILLIAM L
IPC: H01C10/28
CPC classification number: H01C10/28
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Patent Agency Ranking
公开(公告)号：US4573106A
公开(公告)日：1986-02-25
申请号：US636582
申请日：1984-08-01
Applicant: Junichi Kuratani
Inventor： Junichi Kuratani
CPC classification number: H01C10/12 , H01C10/38 , Y10S362/80
Abstract: A slide rheostat having a light-emitting device for permitting a person to check the position of the knob of the rheostat in the nighttime or in the dark. The rheostat includes a transparent upper baseplate, a transparent lower baseplate, a laminated sheet including a pressure-sensitive contact member, a transparent sliding body that reciprocates, the knob being formed on the sliding body, an indicator portion having a transparent region, and a pressure-applying member. The light-emitting device is disposed below the lower baseplate rather than on the knob carried by the sliding body. When the light-emitting device is lit, the emitted light is transmitted through the lower baseplate, the laminated sheet, the upper baseplate, and the transparent region of the indicator portion that has a scale thereon. Part of the light directly reaches the outside through this transparent region, while the other part arrives at the outside after passing through the knob.
Abstract translation: 具有发光装置的滑动变阻器，其允许人在夜间或在黑暗中检查变阻器的旋钮的位置。 变阻器包括透明上基板，透明下基板，包括压敏接触构件的层压片，往复运动的透明滑动体，形成在滑动体上的旋钮，具有透明区域的指示器部分，以及 加压构件。 发光装置设置在下基板的下方，而不是由滑动体承载的旋钮上。 当发光装置点亮时，发射的光通过下基板，层压片，上基板和在其上具有刻度的指示器部分的透明区域透射。 部分光线通过该透明区域直接到达外部，而另一部分通过旋钮后到达外部。
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公开(公告)号：US4333068A
公开(公告)日：1982-06-01
申请号：US172902
申请日：1980-07-28
Applicant: Joseph F. Kishel
Inventor： Joseph F. Kishel
CPC classification number: H01C10/08
Abstract: A sealed position transducer which is self-wiping and which is readily adaptable for providing both linear and nonlinear electrical outputs. The transducer includes a housing, a resistive element received in the housing, and a flexible membrane, having a conductive portion formed thereon facing the resistive element, disposed over the resistive element and attached to the housing to seal the interior of the housing from the environment. An object whose position is to be sensed or measured is mounted on or connected to a carriage which movably engages a guide track formed as part of the housing. The carriage includes a roller which causes the conductive portion of the membrane to be deflected into contact with a portion of the resistive element.In one embodiment, where a linear relationship between resistance and distance is desired, a resistive element having a known, constant resistance per unit length is used. By measuring the resistance between the point of contact of the membrane and the resistive element, the distance of the roller from one end of the resistive element is readily determined. Where a nonlinear relationship is desired, a pressure contact clip is used to compress the conductive portion of the flexible membrane into contact with a selected portion of the resistive element.
Abstract translation: 密封位置传感器，其自擦拭并且易于适于提供线性和非线性电输出。 换能器包括壳体，容纳在壳体中的电阻元件和柔性膜，其具有形成在其上面的电阻元件的导电部分，设置在电阻元件上方并附接到壳体以将壳体的内部与环境密封 。 将要检测或测量其位置的物体安装在或连接到可移动地接合形成为壳体的一部分的导轨的托架上。 滑架包括使膜的导电部分偏转成与电阻元件的一部分接触的辊。 在需要电阻和距离之间的线性关系的一个实施例中，使用具有每单位长度已知的恒定电阻的电阻元件。 通过测量膜与电阻元件的接触点之间的电阻，容易确定辊与电阻元件一端之间的距离。 在需要非线性关系的地方，使用压力接触夹将柔性膜的导电部分压缩成与电阻元件的选定部分接触。
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公开(公告)号：US4233587A
公开(公告)日：1980-11-11
申请号：US937009
申请日：1978-08-25
Applicant: Robert F. Augustine
Inventor： Robert F. Augustine
Abstract: A variable resistance controller for electrical braking systems and the like wherein the form on which the resistance wire is wound has spaced apart flats into which some of the coils are drawn during winding. This arrangement provides alternate lands and depressions over which a leaf spring type contact rolls. The preferred arrangement has only two coils per land to give increased contact pressure of the leaf spring therewith and to provide predetermined incremental increases in electrical output as the leaf spring rolls from one land to the other. In the preferred embodiment, the spacing of the lands is arranged so that the electrical output is proportional to the hydraulic actuating pressure.The preferred embodiment also includes a diode connected between the output of the controller and ground through a fusible link to permit the collapsing magnetic field of the controlled braking electromagnets to draw current through the diode on deactuation of the unit to bypass the wound resistor. This reduces arcing and increases service life.
Abstract translation: 用于电气制动系统等的可变电阻控制器，其中缠绕有电阻丝的形式具有间隔开的平面，其中一些线圈在卷绕期间被拉入其中。 这种布置提供了替代的平台和凹陷，板簧类型的接触辊滚动。 优选的布置每个地面仅具有两个线圈，以使板簧的接触压力增加，并且当板簧从一个地面滚动到另一个地面时，提供预定的电输出增加的增加。 在优选实施例中，焊盘的间距被布置成使得电输出与液压致动压力成比例。 优选实施例还包括连接在控制器的输出端和通过可熔链路接地之间的二极管，以允许受控制动电磁体的塌陷磁场在单元停转时绕过绕组电阻器来吸入通过二极管的电流。 这样可以减少电弧并延长使用寿命。
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公开(公告)号：US4047145A
公开(公告)日：1977-09-06
申请号：US682814
申请日：1976-05-03
Applicant: Richard A. Schwehr
Inventor： Richard A. Schwehr
CPC classification number: H01C10/28
Abstract: An apparatus having an electrical power source and an accelerating element has pivotally actuated control means connected to the accelerating element.
Abstract translation: 具有电源和加速元件的装置具有连接到加速元件的枢转致动控制装置。
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公开(公告)号：US3972017A
公开(公告)日：1976-07-27
申请号：US597932
申请日：1975-07-22
Applicant: John L. Dohanic, Jr. , Gerald J. Cornell
Inventor： John L. Dohanic, Jr. , Gerald J. Cornell
CPC classification number: H01C10/28 , Y10T74/20582 , Y10T74/20612
Abstract: A D.C. potential controller is provided for controlling the magnitude and polarity of a D.C. potential applied to a D.C. drive motor. The controller includes a supply device for producing a potential having a predetermined polarity and magnitude and including a first fixed terminal referenced to said predetermined polarity and potential and a second fixed terminal referenced to a reference potential. A regulating element is displaceable between first and second polarity selecting positions, and is further coordinately displaceable from either first or second polarity selecting positions through a third position. The regulating element also includes first and second moving contacts disposed thereon in spaced apart relationship for contact with the first and second terminals, first and second fixed output current terminals are respectively disposed in contact with the first and second moving contacts when same are displaced through the third position, the first output current terminal including circuitry for linearly varying the output current in the first output current terminal in response to the aforesaid coordinate displacement of the regulating member.
Abstract translation: 提供直流电位控制器用于控制施加到直流驱动电机的直流电位的大小和极性。 该控制器包括用于产生具有预定极性和大小的电位的供电装置，并且包括以所述预定极性和电势为参考的第一固定端子和以参考电位为基准的第二固定端子。 调节元件可在第一和第二极性选择位置之间移动，并且可以通过第三位置从第一或第二极性选择位置进一步协调地移位。 调节元件还包括以间隔开的关系设置在其上的第一和第二移动触点，用于与第一和第二端子接触，第一和第二固定输出电流端子分别设置成与第一和第二移动触点接触， 第三位置，第一输出电流端子包括响应于调节构件的上述坐标位移线性地改变第一输出电流端子中的输出电流的电路。
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