Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7369034 | Chip variable resistor A chip variable resistor which is capable of keeping the resistance at an adjusted value and can be manufactured easily is provided. An insulating substrate is formed with a through-hole capable of receiving a driver, and the upper surface of the insulating s... | 05/06/2008 |
| 7313943 | Adjustable encoder for clutch actuation control system An adjustable position sensor is provided suitable for use with a clutch actuation control system. The position sensor includes: a rotatable shaft adapted to engage a control gear of the clutch actuation control system; and an encoder having a position indicator adj... | 01/01/2008 |
| 7146721 | Method of manufacturing a sealed electronic module A circuit board is inserted into an open-ended housing and potting material is dispensed onto the exposed face of the circuit board in a single step to seal the circuit board to the housing. One or more electrical interconnects such as a connector header or a ribbon... | 12/12/2006 |
| 7077656 | Rotating electronic part and method of manufacturing the same A rotating electronic part has a board; a case composed of insulating resin; a supporting projection made of resin integrally structured with the case; and a rotating member. The board is provided with a central hole and three or more notches around the central hole... | 07/18/2006 |
| 7049927 | Resistance substrate and variable resistor A resistance substrate includes a substrate member, two conductive elements provided on the substrate member, and a resistor element provided on the substrate member, the resistor element electrically connecting the conductive elements to each other. Each of the con... | 05/23/2006 |
| 7046118 | Signal processing circuit board with variable resistor which is hardly declined in the mechanical strength while its variable resistor is not limited to one particular location for the installation A signal processing circuit board includes a board body, a variable electronic element, and a hole. The variable electronic element is mounted in a mounting side of the board body. The variable electronic element has an operating member to control an output outputte... | 05/16/2006 |
| 7042329 | Rotatable variable resistor with clicking mechanism A rotatable variable resistor with a clicking mechanism includes a rotary unit provided with a rotor and a wiper, and a fixed unit provided with a cover, a resistor substrate, and external terminals. The wiper has an arm segment, a clicking projection and a non-clic... | 05/09/2006 |
| 6958674 | Connector device excellent in air-tightness and EGR sensor having the same A terminal plate is formed with a wide portion and a narrow portion. The wide portion, to be insert-molded by a housing of a synthetic resin, is opened by an elongate blank hole having an inner peripheral surface parallel with a side shape thereof, thereby forming t... | 10/25/2005 |
| 6933830 | Variable resistor A variable resistor is configured such that a contact of a contact arm is prevented from contacting a driver plate even when the height of a disk section of a sliding contact is reduced so as to reduce the height of the variable resistor. A sliding contact includes ... | 08/23/2005 |
| 6628193 | Variable resistor 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 dur... | 09/30/2003 |
| 6469613 | Resistive element, variable resistor using the same and method of manufacturing the resistive element A resistive element includes a resistive film disposed on an insulating film, a current collector disposed apart from the resistive film at a given space, and an electrode conductive to the resistive film and the collector respectively. The insulating boa... | 10/22/2002 |
| 6445278 | Rotary sensor capable of detecting rotation angle of shaft to be detected with high accuracy In a rotary sensor of this invention, an angle detection member is composed of sliding pieces having contact portions on a rotation body side and a conductive pattern formed on a substrate arranged on a side opposite to the sliding pieces, the operation s... | 09/03/2002 |
| 6445279 | Variable resistance device A variable resistance device is provided. Instead of a conventional planar-type structure or a three-dimensional structure using an elastic strip, a variable resistance device with a three-dimensional structure using easy-assembling parts, such as a mount... | 09/03/2002 |
| 6317022 | Variable resistor A variable resistor is constructed to prevent bending strain from spreading to the conductive portions to a resistor when bending is executed with respect to the external connection portions of metallic terminals. The variable resistor provides a low-prof... | 11/13/2001 |
| 6275140 | Rotary variable resistor A rotary variable resistor includes a substrate made of synthetic resin; a first terminal made of metal, embedded in the substrate, and leading from a side surface of the substrate; an annular collector formed on the surface of the substrate; a resistor f... | 08/14/2001 |
| 6078248 | Rotary manipulation type variable resistor and method of manufacturing the same In spite of small size, a rotary manipulation type variable resistor capable of preventing electromigration when used in direct-current electric field is obtained. Moreover, the process of forming the case while inserting the resistance substrate and curr... | 06/20/2000 |
| 5933070 | High-voltage variable resistor A high-voltage variable resistor capable of significantly small-sizing a circuit board as compared with the prior art. A terminal fitment is provided so as to act as an electrical connector for establishing electrical connection between a slide element fi... | 08/03/1999 |
| 5923241 | Potentiometer with removable control shaft A potentiometer element housed in an anchoring body which is provided at the extremities of its walls with a plurality of lugs which are deformable angularly in order to hold the potentiometer element, also incorporating a control shaft wherein the insert... | 07/13/1999 |
| 5781099 | Trimmer resistor A miniature trimmer resistor has a resistor carrier with resistive path deposited thereon and solder contacts electrically connected to the resistive path. The resistor carrier and solder contacts are formed by means of a single film of electrically insul... | 07/14/1998 |
| 5726625 | High-voltage variable resistor A high-voltage variable resistor capable of significantly small-sizing a circuit board as compared with the prior art. A terminal fitment is provided so as to act as an electrical connector for establishing electrical connection between a slide element fi... | 03/10/1998 |
| 5500634 | Variable resistor In order to prevent flux which is employed for soldering an open type pre-set variable resistor from reaching an upper major surface of a substrate provided with a resistor film, a blocking member is formed in a position upwardly separated from a lower ma... | 03/19/1996 |
| 5343187 | Electric control device for an outdoor lamp An electric control device for an outdoor lamp includes a control box having a side wall that is formed with a through hole, and a rotary-type variable resistance switch having a main switch housing that is disposed inside the control box and an externall... | 08/30/1994 |
| 5113172 | Angle of rotation potentiometer A potentiometer for the redundant measurement of the angle of rotation of a shaft compared with a fixed member has two resistance paths located concentrically with each other on a fixed disk. Two collector paths having the shape of circular rings are loca... | 05/12/1992 |
| 5095298 | Surface mount variable resistor with insert-molded slider A surface mount variable resistor includes a rotor assembly rotatably mounted on a substrate having an arcuate resistive element thereon. The rotor assembly includes a thermoplastic rotor and a conductive metal slider. The slider is a rivet having a flat ... | 03/10/1992 |
| 5059940 | Single turn potentiometer with direct rotor-to-housing seal In a miniature, single-turn potentiometer, a fluid-tight seal is formed between the rotor and the housing by the interference fit between an annular ridge on the peripheral edge of the rotor and a conforming groove in the interior wall surface of the hous... | 10/22/1991 |
| 4987400 | Magnetically driven variable resistor gauge An improved magnetically driven resistor gauge (50) which includes a plastic base and plastic cap hermetically sealed together by ultra sonic welding to isolate the interior (90) of the gauge from the external environment. A dedicated ground terminal (100... | 01/22/1991 |
| 4977387 | Adjusting potentiometer for electronic circuits, process for assembling the elements thereof and process for obtaining the resistive plate thereof A potentiometer has a parallelepiped casing provided with recesses for fitting connecting terminals which are secured to the casing by plastically deformed studs projecting outward from the casing. Slots are formed in the casing so that the ends of the te... | 12/11/1990 |
| 4933661 | Throttle sensor for an internal combustion engine A throttle sensor for an internal combustion engine includes a circuit board and a rotatable body disposed adjacent the circuit board which is connected to the throttle valve and having a pair of brushes disposed in sliding contact with the circuit board.... | 06/12/1990 |
| 4928082 | Molded resin casing of electronic part with flexible flat cable A molded resin casing of an electronic part equipped with a flexible flat cable and internally accommodating a board on which are formed electric conductor patterns slidingly contacted by contacts of a slider of the electronic part, includes a flexible bo... | 05/22/1990 |
| 4914417 | Variable resistor 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 surfac... | 04/03/1990 |
| 4908598 | Rotary potentiometer 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 ele... | 03/13/1990 |
| 4905560 | Musical tone control apparatus mounted on a performer's body A musical tone control apparatus having first and second detectors mounted on a player's arm for detecting bending angles of the player's joints, and a musical tone control data generating circuit worn on the player's waist for generating musical tone con... | 03/06/1990 |
| 4884052 | Contact structure for slider position sensor A sliding contact includes a sliding contact piece having a contact segment and fixed to a snap member extending perpendicularly to the contact segment. The snap member has at least two snap portions formed in alignment perpendicular to the contact segmen... | 11/28/1989 |
| 4866413 | Potentiometer and method of making the same The potentiometer consists of two halves. Each half has a base plate (5,6) ending in soldering lugs (51,61,62). One part each of a casing (1 or 2) and a rotary driver half (3 or 4, respectively) are molded to each base plate in a plastics injection moldin... | 09/12/1989 |
| 4864273 | Variable resistor A variable resistor having a multi-layer resistive/conductive element is provided. The resistor has three electrodes, a resistive element connecting two of the electrodes and a sliding contact between the resistive element and the third electrode. The bas... | 09/05/1989 |
| 4852419 | Control device, in particular for a motor-vehicle friction clutch The control device for a motor-vehicle friction clutch incorporates an electric motor which drives an output member in a substantially translational motion through a motion conversion crank gear unit designed as a worm gearing. This axis of a worm of the ... | 08/01/1989 |
| 4839627 | Variable resistor A variable resistor including terminal leads punched out of a metal plate the end portions of which are arranged to be positioned accurately onto corresponding collector or conductor elements disposed on a base respectively by setting the metal plate at a... | 06/13/1989 |
| 4835833 | Method of mounting a potentiometer A mechanism for a potentiometer, especially a miniature potentiometer used as a volume control in a hearing aid, onto a face plate includes a metallic band circumferentially surrounding a portion of the housing of the potentiometer. The band includes mean... | 06/06/1989 |
| 4835511 | Quasifixed variable resistor A quasifixed variable resistor includes a resistor substrate with a resistor mounted thereon, a stopper plate rotatably retained about an axis on the substrate, and a knob having a slider fixed to an end of the stopper plate, the slider, sliding on the re... | 05/30/1989 |
| 4821014 | Variable resistor for mounting on surface A variable resistor whose resistance is adjustable by rotating a rotor relative to an insulating substrate defining an arcuate resistive element. The rotor is formed of an insulating resin and includes an inner skirt and an outer skirt extending from a bo... | 04/11/1989 |
