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| Patent # | Description |
|---|---|
| US-5,780,987 |
Barrier operator having system for detecting attempted forced entry A movable barrier or garage door operator has a barrier drive for moving the movable barrier or garage door between open and closed positions. Motion of the... |
| US-5,780,986 |
Soft switching, PWM controller and method for reducing torque ripple in
multiphase DC motor A PWM controlled multiphase DC motor apparatus has a multiphase DC motor, a current sensor, and a PWM controller. The DC motor has multiple windings which turn... |
| US-5,780,985 |
Deformable system A deformation detection system including an elongated element having a hollow deformable wall member that defines a radiation transmission path. A sound... |
| US-5,780,984 |
Apparatus and method for controlling rotation frequency of infinite
variable-speed drive The invention provides an apparatus and a method for controlling the rotation frequency of an infinite variable-speed drive in which, when an error is caused in... |
| US-5,780,983 |
Brushless DC motor drive apparatus A brushless DC motor drive apparatus according to the invention comprises a stator and a rotor, the stator including multi-phase armature windings which are... |
| US-5,780,982 |
Method of and apparatus for controlling rotation number of motor A rotation number of a motor adapted to rotate a record medium having a disc shape with respect to a pickup is controlled. The controlling method is provided... |
| US-5,780,981 |
Process for dynamically adjusting the power for a vehicle having a fuel
cell The invention provides a process for dynamically adjusting the power of an electric driving unit of a vehicle which is supplied with electric energy by a fuel... |
| US-5,780,980 |
Electric car drive system provided with hybrid battery and control method In an electric car drive system having a car drive motor powered by a mounted direct current power supply, a control system including a signal generating means... |
| US-5,780,979 |
Transmission control system for an electric vehicle Disclosed is a transmission control system for an electric vehicle, comprising: a motor; a transmission connected to the motor; a shift fork rod connected to the... |
| US-5,780,978 |
Vertical focusing circuit A vertical focusing circuit is disclosed wherein a constant gain control of a vertical focusing signal is enabled to obtain an optimal dynamic focusing control... |
| US-5,780,976 |
Constant-voltage automatic charging strobe circuit This invention is designed to reduce the number of parts in the circuits of a constant-voltage automatic charging strobe circuit, thus reducing the cost. In... |
| US-5,780,975 |
Low cost inverter with both discrete and integrated power switches An inverter for powering an electroluminescent lamp includes a supply terminal, a ground terminal, a first switching transistor, an inductor, and a second... |
| US-5,780,974 |
Daytime running lights An automotive vehicle exterior illumination circuit includes a main headlamp circuit, including a headlamp switch, for operating the headlamps at full intensity... |
| US-5,780,973 |
Vehicle windshield wiper-light control system incorporating daytime
running light mode A windshield wiper-light control system provides running light functionality to vehicle headlights in association with the coupled operation of the vehicle's... |
| US-5,780,971 |
Method and apparatus for generating radiation utilizing DC to AC
conversion with a conductive front Method and apparatus for generating radiation of high power, variable duration and broad tunability over several orders of magnitude from a laser-ionized... |
| US-5,780,970 |
Multi-stage depressed collector for small orbit gyrotrons A multi-stage depressed collector for receiving energy from a small orbit gyrating electron beam employs a plurality of electrodes at different potentials for... |
| US-5,780,969 |
Gyrotron apparatus including reflecting cylinders which provide
undesired wave absorption In the gyrotron apparatus of the present invention, the microwave absorbing unit is provided around the insulation cylinder located between the microwave... |
| US-5,780,967 |
Electron tube with a semiconductor anode outputting a distortion free
electrical signal To eliminate a distortion of an output image detected by a semiconductor device serving as an anode in an electron tube, a faceplate is configured to a planar... |
| US-5,780,966 |
Electroluminescent device with improved blue color purity Disclosed is an electroluminescent (EL) device having a CaGa.sub.2 S.sub.4 :Ce luminescent layer. The ratio of the X-ray diffraction peak intensity I.sub.2 for... |
| US-5,780,965 |
Three dimensional electroluminescent display A three dimensional electroluminescent display includes a transparent sheet, a translucent layer placed on the transparent sheet, at least one electroluminescent... |
| US-5,780,963 |
Deflection yoke A deflection yoke is comprised of a pair of separators 1a, 1b. A cylindrical neck 3 is formed on the pair of separators. Magnetic rings 7, 8, 10, 11 are... |
| US-5,780,962 |
Color selection electrode mounting structure A color-selecting apparatus of a color display device which can effectively suppress vibration generated in a color-selecting electrode system, wherein one side... |
| US-5,780,961 |
Ground plane insulating coating for proximity focused devices A thin layer of alumina (aluminum oxide) is coated onto the ground plane of a microchannel plate (MCP) without covering the pores of the MCP so it does not... |
| US-5,780,960 |
Micro-machined field emission microtips An electron emission apparatus comprising a gate emitter 6 formed as a conductive plate having an aperture 22 and an electron emitter structure 30 formed... |
| US-5,780,959 |
Cathode structure for cathode ray tube An improved cathode structure for a cathode ray tube includes a first metal tube which can receive an emission part and a heating element, a second metal tube... |
| US-5,780,958 |
Piezoelectric vibrating device A piezoelectric vibrating device is disclosed. The device includes a case having a first compartment with a first compartment height. A bender element,... |
| US-5,780,957 |
Moving linear piezoelectric motor for vehicle applications A piezoelectric moving linear motor consists of three piezoelectric actuators which are controlled relative to each other. One piezoelectric actuators causes two... |
| US-5,780,956 |
Rotary piezoelectric motor for vehicle applications A piezoelectric drive to provide a rotary force to a rotating element includes a pair of circumferentially spaced fingers. The fingers are selectively moved... |
| US-5,780,955 |
Ultrasonic motor device An ultrasonic motor device comprises a vibrating member, a moving member movably disposed on the vibrating member and driven by vibration of the vibrating... |
| US-5,780,954 |
Thermionic electric converters An improved thermionic electric converter uses a wire grid cathode to provide a larger surface area for electrons to boil off. Alternately or additionally, the... |
| US-5,780,953 |
Alternator In an on-vehicle alternator, both the magnetic flux variation frequency and maximum flux density are decreased sufficiently to thereby decrease the internal iron... |
| US-5,780,952 |
Brush assembly for electric motor A brush assembly for an electric motor comprises a brush for making sliding contact with a commutator, the brush being fitted to an end of an elongate resilient... |
| US-5,780,951 |
Low-cost bobbin-wound stator construction for small, single-phase AC
motors A bobbin-wound stator for small single-phase AC motors that surmounts magnetic compromises required by previous implementations is fabricated of stacked... |
| US-5,780,950 |
Co-axial magnetic circuit type compound rotor electrical machine A compound rotor electrical machine includes two or more electrical machines, in the form of motors and/or generators in which magnetic flux paths between... |
| US-5,780,949 |
Reluctance machine with auxiliary field excitations A reluctance machine system including a reluctance machine having a rotor and a stator including at least one phase winding and a full pitch auxiliary filed... |
| US-5,780,948 |
Vibratory structure, method for controlling natural frequency thereof
and sensor and actuator adopting the... A vibratory structure and a method for controlling the natural frequency thereof are provided. The vibratory structure has an elastic member one end portion of... |
| US-5,780,947 |
Coreless motor A coreless motor has a cylindrical shell of magnetic material, a column-like magnet securely and coaxially positioned in the shell to form a cylindrical... |
| US-5,780,946 |
Air-cooled type electric motor An air-cooled type electric motor (20) includes a rotor, a stator includes a stator core (28), and a front support member (32) and a rear support member (34)... |
| US-5,780,945 |
Switched reluctance machine balancing system: material removal approach
and material addition approach This invention provides methods and apparatus for balancing the rotor of switched reluctance machines. The first embodiment of this invention provides a method... |
| US-5,780,944 |
Two-phase permanent-magnet electric rotating machine A two-phase permanent-magnet electric rotating machine in which vibration and noise are less is provided. The machine is constituted by: a stator having 2.sup.n... |
| US-5,780,943 |
Exposure apparatus and method A stage apparatus has a pair of permanent-magnets fixed to a magnet holder and a coil fixed to a coil holder and positioned between the permanent-magnets. When... |
| US-5,780,942 |
Input circuit and semiconductor integrated circuit device including same The disclosed input circuit incorporated in semiconductor integrated circuit device will not be operated erroneously due to fluctuations of a supply (or... |
| US-5,780,941 |
Control circuit A control circuit for manual forced control of a unit, this circuit including a manually operated switch of a non-locking type, to eliminate the need for visual... |
| US-5,780,940 |
Hot wire safety switch A remote switch includes a fluid-containing tube connected to a fluid-sensing switch. A hot wire sensor detects changes in flow through the conduit tube and is... |
| US-5,780,939 |
Method and apparatus for determining orders of non-characteristic
harmonic currents, and for compensation of... A method and an apparatus can determine the orders (z) of non-characteristic harmonic currents (Ih) of a second power supply grid, which is coupled to a first... |
| US-5,780,938 |
Duplex encoder/decoder for alternating current systems A duplexing encoder/decoder pair for operating two loads independently, from two independent current sources, and using two conductors to connect the current... |
| US-5,780,937 |
Safety management system for a motor vehicle A driver's seat sensor switch has contacts that are operable to generate a driver present signal in response to a driver's seat of a motor vehicle being... |
| US-5,780,936 |
Apparatus for controlling mobile equipment Apparatus for controlling the rotational movement of a ladder or the like of mobile equipment having stabilizing outriggers when the ladder is rotated manually... |
| US-5,780,935 |
Hydropowered turbine system A hydropowered turbine system has a hollow base member with an inlet fluid conduit at its upper end in contact with retained water under pressure. A flared fluid... |
| US-5,780,934 |
Starter with pinion regulating claw and spring In a starter, one end of a spring is connected with a pinion, whereas the other end of the spring is connected with an annular plate. A regulation claw of a... |
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