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7602134 |
Twist capsule for rotatable payload
The present invention relates to an apparatus that controllably allows the relative rotation between structures, such as a gimbal and a structure to which it is mounted. According to one aspect,...
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7545073 |
Fluid-dispensing reservoir for large-diameter slip rings
The invention provides an improvement in a slip ring ( 20 ) adapted to provide electrical contact between a stator ( 21 ) and a rotor ( 22 ). The improvement includes: a current-carrying conductor...
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7495366 |
Compact slip ring incorporating fiber-on-tips contact technology
A compact slip ring ( 20 ), which is particularly adapted for use in small spaces, is adapted to provide electrical contact between a rotor ( 22 ) and a stator ( 21 ). The improved slip ring...
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7400077 |
Electric motor having multiple armatures
An electric motor that includes a housing, a rotatable axle, a first field armature, which is disposed substantially around the axle and secured to the axle, and which includes a plurality of first...
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7394179 |
Alternator having a slip-ring cover connected to brush holder
An automotive alternator has slip-rings connected to a rotor shaft and a brush device covering the slip-rings. The brush device is composed of a brush holder supporting brushes therein and a...
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7363399 |
Method, apparatus and computer program product providing storage network dynamic tuning of I/O flow with Queue Depth
In accordance with a computer program product, apparatus and a method there is provided a redundant network wherein a host computer operates with a plurality of storage devices by monitoring...
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7348700 |
Automotive alternator having water shield for protecting brushes from water damage
An automotive alternator according to the present invention includes a rotary shaft, slip rings, a brush holder, brushes, a cover, a seal member, a cooling air flow path, and a water shield. The...
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7339302 |
Electrical contact technology and methodology for the manufacture of large-diameter electrical slip rings
The present invention provides several improvements in a slip ring ( 36 ) that is adapted to provide electrical contact between a rotor ( 42 ) and stator ( 40 ). In one aspect, a brush tube ( 39 )...
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7307367 |
Slip-ring element and method for its manufacture
A method for manufacturing a slip-ring element having contact rings includes the following steps: machining and/or coating lateral sides of the contact rings; mounting the individual contact rings...
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7285931 |
Brushless motor commutation and control
A commutation apparatus drives a brushless motor having a stator equipped with a plurality of coils and a rotor. The commutation apparatus comprises a rotatable commutator shaft, two or more...
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7274125 |
Current collector ring for a generator having balance resistors
An electrical generator having a stator assembly and a rotor assembly is provided. The rotor assembly has a rotor member, a first collector ring, and first and second rotor coils. The first...
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7259494 |
Vehicular alternator with a pair of dissimiliar metal alloy collector rings
A vehicular alternator includes a rotor, a stator and a brush device. The rotor includes a rotor coil wound around pole cores and a pair of collector rings electrically connected with the rotor...
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7169022 |
Method and apparatus for creating a groove in a collector ring of an electrical device
A method and apparatus for creating a groove in the surface of a collector ring for use in an electrical device. The method and apparatus can be used to create a new groove in the surface of a...
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7119471 |
Direct drive high torque compact synchronous motor
A synchronous motor includes a housing 20 , a stator assembly 30 mounted within the housing 20 , a rotor assembly 40 rotationally mounted within the housing 20 , a rotor shaft 50 having an...
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7098568 |
Current-transfer assembly
A current-transfer assembly for electric machines, including a shaft ( 22 ) with electrically conductive slip elements ( 13, 14, 16, 18 ) originating from and coaxially surrounding the shaft, the...
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7057315 |
Automotive alternator having cooling fan coupled to rotor shaft
An alternator for use in an automobile includes a stator supported between a front housing and a rear housing, and a rotor connected to a rotor shaft and rotatably supported inside the stator. A...
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7019431 |
Hydrodynamic slip ring
A slip ring assembly for transferring electrical current to an electrical device is disclosed. The slip ring assembly has a housing that is attachable to the electrical device. Disposed within the...
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7005774 |
Rotary current-collecting device and rotating anode X-ray tube
A rotary current-collecting device includes a rotary slip ring and brushes coming into sliding contact with the outer peripheral surface of the slip ring. The brush-holding ring has an inner...
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6987344 |
High power rotary transformer with bus duct assembly
A rotary transformer has a bus duct assembly that extends through the hollow shaft of a rotary transformer from collector or slip rings positioned above a drive motor for the rotary transformer to...
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6984915 |
Electrical slip ring platter multilayer printed circuit board and method for making same
A slip ring and a method for manufacturing a slip ring utilizes a first double clad copper laminate with a first side and a second side separated by a first dielectric and a second double clad...
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6949847 |
Rotary joint
In a rotary joint A including an electric signal slip ring 31 for passing different electric signals between a stator 1 and a rotor 6 , for the purpose of stable transmission of electric...
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6914362 |
Construction and mode of operation of opposite statorless electronically switched motors
The invention relates to the construction and a mode of operation of statorless electronically switched DC motors that have two freely turning rotors. The invention also relates to embodiments of...
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6909217 |
Method for producing slip ring brushes and slip ring brushes made thereby
In a method for producing a slip ring brush, the slip ring brush including a brush element and a printed circuit board. The printed circuit board has a first surface and a second surface and has at...
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6903482 |
Electrical current collector cleaning and cooling for high voltage rotating machines
An electrical current collector system has an electrically conductive slip ring mounted to a rotatable shaft and a fixed conducting ring assembly forming a partially enclosed AC high voltage...
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6861779 |
Slip ring brush assembly and method
An assembly for transferring current comprises at least one electrically conductive slip ring; at least one electrically conductive brush for supplying current to the at least one slip ring; and an...
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6858966 |
Slip ring apparatus for an automotive alternator
A slip ring apparatus includes a pair of slip rings electrically insulated from each other and disposed coaxially, a pair of electric conductive elements for providing electric connection between...
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6853111 |
Electric-machine-rotor having field coil and auxiliary permanent magnets amd method of manufacturing the same
An electric-machine rotor is composed of a field coil, a pair of pole cores having a plurality of claw poles to enclose the field coil, a plurality of auxiliary permanent magnets disposed between...
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6847138 |
Alternator field coil wire routing design
An alternator for a motor vehicle is disclosed. The alternator includes a stator having a stator winding, a rotor assembly positioned concentrically relative to the stator, and including at least...
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6828702 |
Brushless DC drive
In a brushless direct-current drive with a synchronous motor ( 10 ), which has a stator ( 12 ) that supports a multi-phase stator winding ( 15 ) and a rotor ( 13 ) equipped with permanent magnet...
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6753634 |
Bus duct assembly for high-power rotary current transformer system
A rotary transformer system ( 20 ) comprises a rotatable shaft ( 28 ) having at least one and preferably plural electrically conductive slip rings ( 27 ) mounted thereon. The slip rings ( 27 ) of...
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6732429 |
Method for measuring pressure on the substrate of spin formed catalytic converter
The present invention is generally directed towards a catalytic converter installed in the motor vehicles. More specifically to a method of measuring the pressure on the substrate as the catalytic...
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6720701 |
Method of manufacturing commutator, apparatus for manufacturing commutator, and commutator
A method of manufacturing a commutator includes the steps of punching a commutator forming plate out of a plate member having a plurality of projections formed at predetermined intervals in such a...
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6717320 |
Electrical connection device
The slip ring device ( 10 ) includes stationary and rotary members ( 11, 20 ) rotatable to each other. The slip ring device includes a sliding contact system for electrically interconnecting the...
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6710499 |
AC generator having air port in slip ring cover
An AC generator for a vehicle has a brush unit. The brush unit comprises a brush held in sliding contact with a slip ring, a spring for pressing the brush, a brush holder having a portion for...
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6664697 |
Electrical slip ring apparatus having multiple spaced apart support structures
The present invention is directed to an electrical slip ring assembly having a plurality of conductive rings held in place by multiple spaced apart comb-like structures advantageously eliminates...
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6603233 |
Electrical generator
An improved voltage unipolar generator utilizing a pair of electrically interconnected, counter-rotating, circumferentially segmented, conductive disks. Rolling contacts such as conductive balls or...
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6586858 |
DC voltage powered rotating brush motor
A DC voltage permanent magnet, rotating brush type motor that is characterized by a high output power-to-weight ratio so as to be particularly suitable for use in an electric vehicle. Efficiency is...
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6536095 |
Pressed V-groove pancake slip ring
The present invention advantageously provides a cost effective flat rotor for a pancake type slip ring. A flat copper coil sheet is stamped into a corrugated shape having concentric V-ring grooves....
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6502298 |
Method of electroforming a slip ring
Disclosed is a method of manufacturing a slip ring printed circuit board which includes forming a plurality of concentric spaced electrical contacts on one side of a non-conductive base and forming...
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6501207 |
Rotor for a vehicular A. C. generator
The present invention is a rotor for a vehicle a.c. generator which increases the operational life of the a.c. generator. The rotor, in the present invention for a vehicular a.c. generator includes...
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6472791 |
Envelope for slip-ring contacting members in high-power rotary current collector system
An electrical current collector system ( 20 ) comprises a rotatable shaft ( 28 ) having at least one and preferably plural electrically conductive slip rings ( 27 ) mounted thereon. For each phase,...
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6469414 |
Slip-ring mounting assembly for high-power rotary current collector system
An electrical current collector system includes a rotatable shaft ( 28 ); an electrically conductive slip ring ( 27 ); and a slip ring support assembly ( 42 ). The slip ring support assembly ( 42 )...
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6465926 |
Cleaning/cooling of high-power rotary current collector system
An electrical current collector system ( 20 ) comprises an electrically conductive slip ring ( 27 ) mounted to a rotatable shaft ( 28 ), as well as a fixed conducting ring assembly ( 44 ) having...
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6437475 |
Rotor slip ring and method of coil to slip ring termination
A slip ring assembly includes an insulator body with an rotor-facing first side and second, opposing side, and a pair of slip rings. The slip rings are formed to include respective coupling...
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6400057 |
Slip-ring configuration in electric motors and generators, slip-ring body and method for retooling slip-ring bodies
A slip-ring configuration for electric motors and generators is provided, in which brushes made of carbon materials and slip rings of a slip-ring body are electrically conductively connected to...
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6356002 |
Electrical slip ring having a higher circuit density
Disclosed is a method of manufacturing a slip ring printed circuit board which includes forming a plurality of concentric spaced electrical contacts on one side of a non-conductive base and forming...
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6331743 |
Magnetic fan clutch having plastic members
A magnetic fan clutch having a magnetic field coupling which uses a light weight, strong plastic driving member and driven member to rotate fan blades which are also made of plastic. The fan clutch...
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6294856 |
Feeder arrangement of vehicle AC generator
A feeder arrangement of an AC generator includes slip rings, brushes, a brush holder in which an air chamber is formed, and a slip-ring cover. A partition member is disposed in the air chamber to...
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6283638 |
Slip ring with integral bearing assembly and method of manufacture
These and other objects of the present invention are achieved by inserting electrically conductive rings and a bearing into a mold before a slip ring body is injection molded. During the injection...
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6259182 |
Car AC generator with a slip ring support and a slinger unit that cooperate to form a labyrinth that prevents fluid entry into an interior chamber
To prevent water entering a labyrinth from flowing into contact portions between slip rings and brushes, the labyrinth is formed as a stepped structure by an annular slinger-side stepped portion...
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