Ring, A Shaft-bearing Patents (Class 338/175)
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Patent number: 6778063Abstract: An angular position sensor determines the angular orientation of a rotatable shaft. The device includes a rotor rotatable with the shaft. A first housing receives the rotor and a second housing at least partially surrounds the first housing. A flexible member between the first housing and the second housing permits vibration of the first housing while the second housing remains stationary.Type: GrantFiled: May 19, 2003Date of Patent: August 17, 2004Inventor: Jack Chen
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Patent number: 6731194Abstract: Disclosed is a highly reliable rotary sensor capable of preventing radial eccentricity of the rotation shaft and performing correct detection. The rotary sensor includes a rotating member having a rotation shaft, a rotation detecting device for detecting the rotation of the rotating member, a bearing having a shaft hole into which the rotation shaft is inserted and which rotatably supports the rotation shaft integrally with the rotating member, and a biasing device for imparting a biasing force in a thrust direction to the rotation shaft, wherein there is formed in the periphery of one end portion of the shaft hole a beveled portion inclined so as to be outwardly flared in the radial direction A of the shaft hole, and wherein the rotating member 11 is provided with a tapered surface corresponding to the beveled portion, the tapered surface being held in press contact with the beveled portion by the biasing force of the biasing device.Type: GrantFiled: June 20, 2000Date of Patent: May 4, 2004Assignee: Alps Electric Co., Ltd.Inventor: Hideki Abe
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Patent number: 6628193Abstract: A thin-thickness variable resistor is provided, which is capable of stabilizing electrical connection between metallic terminals and a resistor by increasing the holding strength for a second terminal by a substrate while preventing the bending strain during the bending work from spreading to a conductive portion conductive to the resistor. A variable resistor comprises a substrate, metallic terminals formed in the substrate by insert-molding, and a slider sliding on a resistor formed on the substrate, wherein the slider is rotatably attached by crimping an eyelet formed in a first metallic terminal. External-connecting portions of the metallic terminals are extended from the bottom portion of the substrate to be bent upwardly along sides of the substrate.Type: GrantFiled: June 20, 2001Date of Patent: September 30, 2003Assignee: Murata Manufacturing Co., Ltd.Inventors: Takeshi Doi, Yukinori Ueda
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Patent number: 5570076Abstract: The present invention provides a variable resistance device having at least one pair of channels retaining a conductive ball between them. The channels contain a resistive element and a conductive element and movement of the conductive ball within the channels, caused by rotation of the channels relative to each other, provides a variable resistance.Type: GrantFiled: July 18, 1994Date of Patent: October 29, 1996Inventors: Bruce L. Erickson, Alan H. Stull
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Patent number: 5469125Abstract: A rotary electronic device of a neutral position return type having an output that is controlled in a stepless mode. A rotary variable resistor of the rotary electronic device is installed on a tubular holder, and a torsion coil spring is disposed between a manipulation knob and the tubular holder. The neutral position return is very simply configured by using a small sized rotary variable resistor.Type: GrantFiled: April 14, 1994Date of Patent: November 21, 1995Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hideki Shigemoto, Hiroshi Matsui, Jun Sugahara
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Patent number: 4914417Abstract: A variable resistor whose resistance is adjustable by rotating a rotor on an insulating substrate having an arcuate resistive element. The rotor is formed of an insulating resin and includes an inner skirt and an outer skirt extending from a bottom surface thereof. The inner skirt contacts the upper surface of the insulating substrate inside the arcuate resistive element. A metallic slider is integrated with the rotor by insert molding. The slider comprises a base formed of a metal plate folded at least into two, and arms having contacts at the tips thereof for slidably contacting the resistive element on the insulating substrate. The arms are folded along lines which are parallel to a line extending from the center of the base to the contacts of the arms to cause the contacts to project toward the insulating substrate. One of the metal plates forming the base cooperates with the inner and outer skirts of the rotor to seal a space accommodating the resistive element and the arms of the slider.Type: GrantFiled: December 9, 1988Date of Patent: April 3, 1990Assignee: Murata Manufacturing Co., Ltd.Inventors: Kenji Matsui, Fumitoshi Masuda, Yukinori Ueda
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Patent number: 4908598Abstract: The cover of a casing of the potentiometer is formed with an opening which is adapted to be closed by another cover and through which the top surface of a resistor core is accessible. Trimming resistors are located on the top surface and are connected electrically to a resistor path applied on the bottom surface of the resistor core. This permits adjustments of the potentiometer to be made even when the assembly is completed.Type: GrantFiled: October 25, 1988Date of Patent: March 13, 1990Assignee: Wilhelm Ruf KGInventors: Rita Burger, Horst Pissulla
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Patent number: 4821015Abstract: A variable resistor of a type for mounting against the surface of a printed circuit substrate, the variable resistor having:an insulating substrate having one surface for supporting a resistor and an opposite surface for being positioned against the surface of a printed circuit substrate;a curved resistor on the one surface of the insulating substrate and having opposite ends;a sliding member rotatably mounted on the insulating substrate and sliding on the resistor;a plurality of outside electrodes on the insulating substrate, one for each end of the curved resistor, and extending from the corresponding end of the resistor along the one surface of the insulating substrate, along an edge of the insulating substrate, and along the opposite surface of the insulating substrate, each outside electrode having a three layer structure constituted by a lower layer against the insulating substrate, a middle layer and an outer layer, the lower layer being an electrically conductive material suitable for plating, the midType: GrantFiled: December 4, 1987Date of Patent: April 11, 1989Assignee: Murata Manufacturing Co., Ltd.Inventors: Kenji Matsui, Toshi Numata, Yukinori Ueda, Tomohisa Ogawa, Kiyoshi Ito
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Patent number: 4812803Abstract: A rotary potentiometer having a casing resistor support held in the casing, a resistor layer on the support, a spring carrier supported for rotation in the casing, and a slider spring fastened at the carrier in sliding contact with the layer. The spring carrier is coupled to a shaft whose angular position is to be detected by the potentiometer.Type: GrantFiled: July 8, 1987Date of Patent: March 14, 1989Assignee: Wilhelm Ruf A.G.Inventor: Reinhard Hochholzer
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Patent number: 3932832Abstract: A plug-in shaft is provided for insertion into a noncircular opening provided in a driver and integral hub of a variable resistance control providing a means to alter the rotational torque of the control. Integral with the hub is a dish shaped abuttment section and a driver engagement portion of the shaft supports a plurality of nubbins engaging the abuttment section of the hub upon insertion of the shaft into the noncircular opening to secure the shaft in a predetermined position within the slot. The nubbins engaging the dish shaped abuttment section provide radial pressure on the hub and restrain the axial movement of the shaft within the noncircular opening. An alignment portion of the shaft contiguous with the driver engagement portion rigidly prealigns the shaft in an upright and intact manner within the noncircular opening before the engagement portion and nubbins engage the noncircular opening.Type: GrantFiled: March 18, 1974Date of Patent: January 13, 1976Assignee: CTS CorporationInventor: John D. Van Benthuysen