Class 361/289 - Motor driven

Subclass of Class 361 - Electricity: electrical systems and devices
Definition: Subject matter in which the mechanical motion is generated
No. of patents: 26
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
7211923	Rotational motion based, electrostatic power source and methods thereof A power system includes a member with two or more sections and at least one pair of electrodes. Each of the two or more sections has a stored static charge. Each of the pair of electrodes is spaced from and on substantially opposing sides of the member from the othe...	05/01/2007
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
6966225	Capacitive accelerometer with liquid dielectric An accelerometer includes a capacitive sensing device and circuitry. The capacitive sensing device has electrode structures spaced by a gap for relative movement in response to a force applied to the capacitive sensing device to produce a displacement of the electro...	11/22/2005
6473290	Capacitance-type external-force detecting device with improved sensitivity A capacitance-type external-force detecting device includes a substrate, a moveable unit which is supported by the substrate via a supporting beam and which can be displaced in the detecting direction, a comb-shaped fixed electrode provided on the substra...	10/29/2002
6433449	Galvanometer unit A galvanometer unit includes a limited-rotation motor with a load element such as a mirror attached to a shaft extending from the motor. In a servo loop that controls the angular position of the mirror, a position-sensor attached to the shaft provides pos...	08/13/2002
6380649	Galvanometer unit A galvanometer unit comprises a limited-rotation motor with a load element such as a mirror attached to a shaft extending from the motor. In a servo loop that controls the angular position of the mirror, a position-sensor attached to the shaft provides po...	04/30/2002
6353527	Variable capacitor A variable capacitor includes a driver member including one metal sheet, a head having a driver groove provided therein, engagement portions engaged with a rotor, and a spring function portion in pressure-contact with the rotor are integral with each othe...	03/05/2002
6247363	Method and device for determining a quantity of consumable product present in a reservoir and a document printing device implementing this method Determination of the quantity of consumable product present in a reservoir, for example the quantity of ink present in the reservoir of an inkjet printing device. According to the invention, the movable reservoir can be engaged in the dielectric space of ...	06/19/2001
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
6064559	Fiber optic position sensor for tuning capacitor An optical position sensor for a vacuum tuning capacitor employs optic fibers that are positioned adjacent a nut associated with the guide shaft. A threaded lead screw is rotated to lift the nut and move the capacitor from a fully-withdrawn home position ...	05/16/2000
5694301	Power structure construction (DC bus cross straps) A hybrid vehicle includes a power unit communicating power between a turbine alternator, flywheel and traction motor. The power unit stores, dc power in capacitors and places power on a dc bus for use in driving the induction machines. The dc bus includes...	12/02/1997
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
5375033	Multi-dimensional precision micro-actuator Mechanically movable microstructure fabricated from a single crystal such as silicon and actuator structures for providing a high degree of controlled, precision motion of nanometer-scale variable impedances....	12/20/1994
4783629	RF coil for MRI with self-tracking ganged coupling capacitors An RF coil for a magnetic resonance imaging device using nuclear magnetic resonance phenomena includes self-tracking ganged coupling capacitors which provide impedance matching and also tune out coil inductance to establish resonance at the RF operating f...	11/08/1988
4694235	Capacitive position sensor A capacitive position sensor for sensing changes in the position of a rotating element, in which there are two sets of stationary capacitive surfaces, one set forming a first integral unit, the other set forming a second integral unit; the two units are h...	09/15/1987
4686847	Method and vibrating capacitor apparatus for analysis of a substance or of at least one component of a mixture of substances One or both plates of a capacitor, caused to vibrate so as to permit measment of the contact potential between the electrodes, is coated with a sensor material for which the electron work function, and therefore the related contact potential, are sensiti...	08/18/1987
4409509	Piezoelectrically driven transducer for electron work function and contact potential measurements The resonance of a piezoelectric vibrating element itself sets the frequency of the excitation producing ac oscillator for e.g. Kelvin probe or chopper applications. The oscillation amplitude is continuously adjustable. The superposition of a dc voltage i...	10/11/1983
4366402	Cylindrical capacitive tachogenerator A cylindrical capacitive tachometer generator having a rotor and a stator, and a cylindrical air gap between facing cylindrical surfaces of the rotor and stator, each provided with equal numbers of teeth uniformly distributed over the circumference and sp...	12/28/1982
4312025	Magnetic variable capacitor A capacitor comprises a resilient strip of magnetic material, such as steel, a strip of non-magnetic material such as brass and a layer of insulation between the two. An end portion of the resilient strip is movable between a position substantially parall...	01/19/1982
4234139	Device for the detection of the state of rotation of a shaft, in particular for tape decks A rotatable capacitor of variable capacitance is utilized to produce modulation of a signal, and demodulation of the signal produces a signal usable for determining the state of rotation of a shaft used for rotating the capacitor....	11/18/1980
4173032	Binary capacitor A binary capacitor consists of a piston having a metallized band on its periphery. The piston is movable between first and second positions within a cylinder which carries two spaced metallized bands. One of the positions of the piston defines a position ...	10/30/1979
4100442	Electrically driven oscillating capacitor device A spring member is resin bonded to a piezoelectric material body at one end nd at the other end carries the oscillating electrode of a Kelvin probe capacitor used for electron work function measurement under vacuum. The piezoelectric material body can be e...	07/11/1978
4035697	Motor driven magnetically coupled variable capacitor A motor driven magnetically coupled variable capacitor including a follower magnet arranged internally of the capacitor and fixedly coupled to a rotatable shaft, a follower magnet drive magnetically coupled to the follower magnet for rotating the follower...	07/12/1977
3950679	Variable capacitor A variable capacitor comprising a rotatable drum, which serves as an electrode, and a belt, which is circumferentially guided about the drum and an auxiliary drum, for supporting the counter-electrode layer. This layer is separated from the rotatable drum...	04/13/1976
3949246	Piezoelectric bimorph controlled variable capacitor This invention relates to a remotely controlled variable capacitor, more ticularly, to an electromechanical capacitor with one of the capacitor electrodes mounted on one surface of a bimorph element and the other capacitor electrode mounted on the surfac...	04/06/1976

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Class 361/289 - Motor driven