Class 361/298.1 - Rotary plates

Subclass of Class 361 - Electricity: electrical systems and devices
Definition: Subject matter having electrode plates which turn and variably
No. of patents: 24
Last issue date: 07/10/2007

Number	Title	Issue Date
7242570	Vacuum capacitor A vacuum capacitor including an insulating cylinder having first and second ends which are opposite to each other. A stationary-side flange is installed to the first end of the insulating cylinder. A stationary electrode supporting plate is installed to an inner sur...	07/10/2007
7200908	Method of making a variable capacitor component A method of making a variable capacitor by forming a grove portion in an insulating substrate, two upper portions of the substrate located on either side of the groove portion forming two lateral edges, a conductive layer covering the inside of the groove portion, a...	04/10/2007
7146014	MEMS directional sensor system A MEMS directional sensor system capable of determining direction from a microphone to a sound source over a wide range of frequencies is disclosed. By utilizing a parallel filter bank that relies on a slow wave structure in a MEMS device, such as described herein, ...	12/05/2006
7091964	Electronic device with bezel feature for receiving input An electronic device includes a bezel feature, a connector and a processor. The bezel feature is provided on the front panel and interfaces with the processor. The bezel feature includes a circumferential track provided on the front panel and is formed by a contact-...	08/15/2006
6975498	Variable capacitor A variable capacitor includes a stator and a rotor rotatably supported by a cover relative to the stator. The stator includes a first stator electrode of two or more layers and a second stator electrode of two or more layers in the interior of a dielectric substrate...	12/13/2005
6954348	Tunable MEMS capacitor Various embodiments of tunable capacitors are disclosed. One embodiment is in the form of a tunable capacitor (368) having a pair of stationary capacitor electrodes (392) that are fixed to and disposed the same distance above a substrate (388) i...	10/11/2005
6923106	Rotating pulse forming network for shipboard operation of electromagnetic gun and capacitor module An electromagnetic gun and rotating pulsed network system that includes a gun barrel coupled to a gun mount coupled on a rotating platform on one deck of a naval ship. A pulse forming network which is generally cylindrical in shape provides pulsed energy to the elec...	08/02/2005
6747863	Electrostatic drive An electrostatic drive having a plurality of mover electrodes operatively secured to a mover, and a plurality of stator electrodes operatively secured to a stator. The mover and stator are configured to move relative to each other via electrostatic force generated b...	06/08/2004
6690568	Fluid dielectric variable capacitor This invention relates to an apparatus and method of using a high frequency, high power, fluid dielectric variable capacitor for an impedance matching network. The apparatus includes of a bow-tie rotary vane, a set of two fixed vanes, and a set of rotatin...	02/10/2004
6134097	Variable capacitor A variable capacitor has a stator, a rotor, and a cover. The stator includes a stator electrode and a stator terminal connected electrically to the stator electrode. The rotor includes a rotor electrode facing the stator electrode with a dielectric dispos...	10/17/2000
6101084	Capacitive rotary coupling A signal is transferred without brushes between rotatable and non-rotatable components of a machine. An input signal is applied to one of the components. An axially symmetrical electromagnetic field is generated in response to the input signal. The electr...	08/08/2000
5867360	Variable capacitor In a variable capacitor having a stator with a stator electrode and a rotor with a rotor electrode both of which are housed in a recess section of a casing while allowing the recess section to be closed by a cover, enabling the rotor to be brought into st...	02/02/1999
5696662	Electrostatically operated micromechanical capacitor An electrostatically controlled, micromachined micromechanical capacitor having an adjustable, extensive tuning range. A configuration consists of a set of various sized beams or plates adjacent to a common plate or plates. The pairs of plates are linearl...	12/09/1997
5657006	Capacitance type rotation angle sensor A movable electrode is positioned between two fixed electrodes. The movable electrode is rotated in correspondence to a rotation angle to be detected. The fixed electrodes and the movable electrode are split into first split electrode members and second s...	08/12/1997
5557495	Variable capacitor and method A variable capacitor and method of varying capacitance in which two pressurally engaged plates having electrically conductive patterns on facing surfaces are separated by a low friction polytetrafluoroethylene (Teflon™) dielectric disk so that the plate...	09/17/1996
5471202	Rotation sensing device for detecting a fine displacement of a handle and control system in electrical power steering device A rotation sensing device for detecting a fine displacement of a handle and control system for use in an electrical power steering device in vehicles and a motor driving device in industrial machines. The rotation sensing device has a fixing member with a...	11/28/1995
5461535	Variable capacitor In a rotor which is rotated for adjusting capacitance provided by a variable capacitor, a portion for receiving a tool for rotating the same is defined by a through-hole. Thus, it is possible to protect the rotor from application of a pressing force from ...	10/24/1995
5424906	Variable capacitor In order to obtain a stator of a variable capacitor, prepared is a ceramic laminate having a stator electrode provided in its interior and a plurality of burnaway films of carbon or resin, which can be burned away by firing, provided in positions correspo...	06/13/1995
4589055	Rotor shaft support mechanism in oscillator In an oscillator having a frame, a variable capacitor mounted in the frame and having a rotor and a stator, the rotor having a rotor shaft rotatably supported on the frame, a rotor shaft support mechanism comprises: two sets of rotor shaft support portion...	05/13/1986
4486654	Optical pattern tracing system with improved manual control An optical pattern tracing system of the type having a tracing head with a scanner that projects a photocell onto a pattern-line with an improved manual resolver for providing control signals to drive the tracing head in an approach direction toward the p...	12/04/1984
4264942	Miniature variable capacitor provided with a driving mechanism A miniature variable capacitor comprises a miniature variable capacitor main body comprising stator plates, a base plate for supporting the stator plates, and rotor plates. held to a rotor shaft and undergoing displacement, in accordance with rotation of ...	04/28/1981
4242716	Differential disc capacitor A tunable differential disc capacitor having a pair of outer dielectric discs and an electrically conductive rotor element, plural paired electrically conductive portions disposed on the respective dielectric discs and spring clamp means electrically and ...	12/30/1980
4193107	Variable capacitor A variable capacitor comprising a lower plate and an upper plate which are made of a synthetic material which is suitable for ultrasonic welding, said plates being provided with a number of engaging spacer columns which are integral with the plates and wh...	03/11/1980
4037482	Accurate UHF television tuning system and method of fabricating same 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...	07/26/1977

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Class 361/298.1 - Rotary plates