Class 361/279 - Gas or vacuum dielectric

Subclass of Class 361 - Electricity: electrical systems and devices
Definition: Subject matter utilizing a gas or a vacuum as the dielectric
No. of patents: 38
Last issue date: 03/04/2008

Number	Title	Issue Date
7339298	Compliant motor driven variable electrical device A motor driven electrical device includes: a variable electrical device having a rotational variable control; a first support plate positioned above the variable electrical device; a motor support plate pliably attached to the first support plate using a pliable sep...	03/04/2008
7254008	Integrated capacitive microfluidic sensors method and apparatus A microfluidic device and method for capacitive sensing. The device includes a fluid channel including an inlet at a first end and an outlet at a second end, a cavity region coupled to the fluid channel, and a polymer based membrane coupled between the fluid channel...	08/07/2007
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
7088567	Tunable capacitors using fluid dielectrics Capacitors (10,20,40,50,70,80) having a fluid dielectric material that is transported or undergoes a phase change are disclosed. The dielectric medium change results in a change in the total dielectric constant of the material between the electrodes (12, 1...	08/08/2006
7085121	Variable capacitance membrane actuator for wide band tuning of microstrip resonators and filters A device for varying the capacitance of an electronic circuit is disclosed. The device comprises a flexible membrane located above the electronic circuit, a metal layer connected to the flexible membrane, and bias circuitry located above the membrane. Variation of t...	08/01/2006
7061745	Variable capacitor adjustable by linear motor The disclosure describes a variable capacitor device, which is formed by a linear motor and a variable capacitor having at least one stator electrode and a movable electrode. A piezoelectric transducer of the linear motor is frictionally coupled to the movable elect...	06/13/2006
7042699	Vacuum variable capacitor A vacuum variable capacitor is includes of a vacuum container which is formed by sealing both end of a cylindrical insulator with a fixed-side end plate and a movable-side end plate, a movable conductive member which is disposed opposite to the fixed-side end plate ...	05/09/2006
7041930	Bellows for use in vacuum capacitor A vacuum capacitor includes a vacuum vessel, stationary and movable electrodes arranged in the vacuum vessel, and a bellows which follows the movable electrode to maintain the hermeticity of the inside of the vacuum vessel and which serves as a current path, wherein...	05/09/2006
6975499	Vacuum variable capacitor with energization and heat shielding bellows A vacuum variable capacitor includes an energization bellows arranged in a vacuum vessel and having ends mounted to a movable-electrode support plate and a movable side-end plate, respectively, a heat shielding bellows arranged inside the energization bellows and ou...	12/13/2005
6970340	Capacitor apparatus of the capacity variable type The present invention is directed to a capacitor apparatus of the capacity variable type. This capacitor apparatus is manufactured by Micro Electro-Mechanical System technology, and comprises an insulating substrate (2) in which at least two capacitor electro...	11/29/2005
6961228	Capacitor apparatus of the capacity variable type The present invention is directed to a capacitor apparatus of the capacity variable type. This capacitor apparatus is manufactured by Micro Electro-Mechanical System technology, and comprises an insulating substrate (2) in which at least two capacitor electro...	11/01/2005
6955097	Radial movement capacitive torque sensor A radial movement capacitive torque sensor includes a pair of concentric capacitor plate rings lying in a common plane, a capacitor plate ring facing the pair of concentric capacitor plate rings, and a paddle assembly disposed between the pair of concentric capacito...	10/18/2005
6953227	High-power multi-device liquid cooling A cooling system is presented. The system includes a cooling circuit and at least one electronic component coupled to a surface. One or more heat dissipation structures are in thermal contact with the at least one electronic component. At least one sliding seal mech...	10/11/2005
6922327	Photolithographically-patterned variable capacitor structures and method of making A new type of high-Q variable capacitor includes a substrate, a first electrically conductive layer fixed to the substrate, a dielectric layer fixed to a portion of the electrically conductive layer, and a second electrically conductive layer having an anchor portio...	07/26/2005
6906904	Integrated, tunable capacitance An integrated, tunable capacitance is specified in which the quality factor is improved by virtue of the fact that, instead of source/drain regions, provision is made of highly doped well terminal regions having a deep depth, for example formed as collector deep imp...	06/14/2005
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
6606235	Photolithographically-patterned variable capacitor structures and method of making A new type of high-Q variable capacitor includes a substrate, a first electrically conductive layer fixed to the substrate, a dielectric layer fixed to a portion of the electrically conductive layer, and a second electrically conductive layer having an an...	08/12/2003
6597560	Micro-electro-mechanical varactor and a method of making and using thereof A varactor includes a first capacitor plate, a second capacitor plate, at least one fixed charge holder, and a control electrode. The second capacitor plate is spaced from and movable towards and away from the first capacitor plate. At least one fixed cha...	07/22/2003
6587328	Bellows with a uniform electric conductive layer for a vacuum capacitor The invention relates to a bellows in a vacuum capacitor, whose bellows structure (1) comprises a carrier material (2) and at least one electrically conductive layer (5, 6), whereby the latter has a uniform thickness over the entire bellows structure. The...	07/01/2003
6529364	Capacitor with protection device A capacitor with protection device is mainly used to distribute power supply, and to protect capacitor load. The invention can not only display electrical characteristics, but also distribute electric power to every loader. Furthermore, it can protect the...	03/04/2003
6473289	Vacuum variable capacitor An improved vacuum variable capacitor can include one or more characteristics that provide advantages over previous vacuum variable capacitors. In particular, the vacuum variable capacitor can be constructed so as to enable the capacitance to be adjusted ...	10/29/2002
6462930	Vacuum variable capacitor device An adjuster nut is rotatably supported to a vacuum container of a vacuum variable capacitor of a vacuum variable capacitor device. The adjuster nut has a nut portion, and a shank made of an insulating material. The shank has a first end integrated with th...	10/08/2002
6424515	Combined detector capacitor and vacuum feed through A capacitor for connecting to components within a vacuum system in which the space between the capacitor plates is at the pressure of the vacuum system is provided. One of the be plates provides a feed-through which permits closer coupling of the capacit ...	07/23/2002
6268995	Double-bellows vacuum variable capacitor A vacuum variable capacitor includes a vacuum bellows for allowing a pressure differential between two volumes inside the capacitor, wherein one of the volumes may be a vacuum volume. The vacuum variable capacitor further includes a conductive bellows dis...	07/31/2001
6170138	Capacitor with cold-flow-extruded electrodes A capacitor is described, in particular a vacuum capacitor, comprising two electrodes (1, 1'), at least one insulator (5), and means for fastening (4, 4'). A process is proposed according to which the two electrodes (1, 1') are each produced as one piece ...	01/09/2001
5590015	Variable capacitor having safety end switches disposed on an adjustable screw at end face of capacitor housing The variable capacitor (1) is characterized by the fact that the safety end switches (6, 7) as well as a displacement detector (10) are integrated in the housing (1) or in an additional housing (5) provided at one of the front ends of the capacitor housin...	12/31/1996
4953057	Variable capacitor and method of making same A variable capacitor formed of two flexible interleaved films, each having a dielectric layer and a superposed electrically conductive layer. The films are coiled about an axis in sliding contact with each other and are movable axially relative to each ot...	08/28/1990
4908921	Method of making capacitive pressure sensors A method of batch producing capacitive pressure sensors in which a sheet of semiconductive material is provided with an insulating layer 4 on one side thereof and a plurality of cavities 1 are formed in the semiconductive sheet by removing part of the ins...	03/20/1990
4860160	Adjustable vacuum condenser In an adjustable vacuum condenser, in which two interengaging electrode systems are arranged in a vacuum-tight housing, the upper electrode system of which is displaceably connected with the cover of the housing via a set of bellows serving as current fee...	08/22/1989
4390924	Variable capacitor with gear train end stop An energy absorbing mechanical end stop for a high speed gear train that is used to drive a variable vacuum capacitor utilizes a friction plate that is mounted to a gear member of the high speed gear train as an energy absorbing mechanism. A wedge member ...	06/28/1983
4386453	Method for manufacturing variable capacitance pressure transducers A method for manufacturing variable capacitance pressure transducers and an intermediate article of manufacture produced in the practice of this method. In the method, a wafer of doped silicion or other semiconductor material has portions of the semicondu...	06/07/1983
4342066	Electrical condenser with a dielectric of gas under pressure The present invention relates to a condenser for high power and with a gas shaped dielectric and preferably intended for tank circuits in high frequency generators and radio transmitters. The electrodes of the condenser consists of two metal tubes (1 and ...	07/27/1982
4308569	Electric capacitor An electric capacitor containing a winding of paper and/or synthetic dielectric foils and metallic coatings and having at least one winding which is disposed in a sealed gas-tight housing containing an excessive pressure safety system and filled with an i...	12/29/1981
4266263	Force measuring capacitor A capacitor comprising at least two electrodes separated from one another by an elastic dielectric formed of rubber and/or plastic for measuring forces acting upon one of the electrodes--the so-called measuring electrodes--by detecting the resultant chang...	05/05/1981
4261086	Method for manufacturing variable capacitance pressure transducers A method for manufacturing variable capacitance pressure transducers and an intermediate article of manufacture produced in the practice of this method. In the method, a wafer or doped silicon or other semiconductor material has portions of the semiconduc...	04/14/1981
4177495	Variable electric capacitor A variable electric capacitor has two electrode units consisting of a plurality of plates or a single spirally wound plate with several turns. The plates or turns have opposite lateral edges, one of which is free and the other is fixed to a support. The p...	12/04/1979
4007406	High pressure, gas filled, variable electrical parameter device A sealed variable capacitor assembly including a generally cylindrical metallic enclosure in which fixed and movable interleaving capacitor plate sets are contained, the movable set being varied by axial translation thereof by means of a leadscrew arrange...	02/08/1977
4002957	Trimmable fixed hermetically sealed capacitor A "fixed" vacuum capacitor assembly in which first and second sets of interleaved, substantially concentric, capacitor plates are held between opposing end-bell assemblies. A trimmer capacitor including third and fourth sets of capacitor plates, an axial ...	01/11/1977

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Class 361/279 - Gas or vacuum dielectric