Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 8120228 | Slip ring assembly A split slip ring assembly formed from first and second halves of a slip ring having a contact surface for rotational engagement with a stationary brush element for transferring electrical signals there between. The contact surface has a smooth surface at the juncti... | 02/21/2012 |
| 8106562 | Slip ring assembly with shaft holder The present invention relates to a slip ring assembly for providing electricity to a rotor which is able to rotate in relation to a stator in a generator or an electrical motor, the slip ring assembly being in connection with an encoder. The slip ring assembly inclu... | 01/31/2012 |
| 7990016 | Slip-ring module for a rotor of an electric machine electric machine with a slip ring module and method for production of a slip ring module A slip ring module (76) for a rotor (40) of an electrical machine (10), in particular, an alternator is disclosed, comprising at least one first slip ring (79) with at least one first connecting conductor (103) held in sections of ... | 08/02/2011 |
| 7764002 | Combination type slip ring A combination type slip ring includes a base, a plurality of conductive members, conductive rings, and insulating rings. Each of the conductive members has a slot for connection of the conductive members respectively. Each of the insulating rings has an axial hole a... | 07/27/2010 |
| 7701108 | Combination-type collector ring unit A collector ring unit includes a base, and a plurality of insulated spacer rings sleeved onto the base respectively and each having a ring body, a plurality of through holes through the ring body, and a notch formed on the ring body. A plurality of conductive slip r... | 04/20/2010 |
| 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 broadly includes an electrically-conductive monofilament ( | 02/24/2009 |
| 7423359 | 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 (23) mounted on the stator; a brush tube (24... | 09/09/2008 |
| 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 field magnets spaced around the first field armature, a second field... | 07/15/2008 |
| 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 slip-ring cover firmly connected to the brush holder. The slip-ring cover i... | 07/01/2008 |
| 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 conditions of the multipath storage network and controlling a storage multi... | 04/22/2008 |
| 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 slip rings are fixed to an end portion of the rotary shaft. The brushes... | 03/25/2008 |
| 7339295 | Electric machine with improved temperature monitoring system An electric machine includes a heat-generating machine component, and a temperature radiation detector for contactless determination and/or measurement of heat radiating from the machine component for ascertaining an absolute and current temperature of the machine c... | 03/04/2008 |
| 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) is crimped around the upper marginal end portions... | 03/04/2008 |
| 7309936 | Resolver with waterproofing elements To obtain a resolver in which the winding portion is prevented from breaking by corrosion caused by water. The resolver includes: a stator core in which a plurality of pole teeth are formed inside an annular stator core main body in a radius direction, a rotor provi... | 12/18/2007 |
| 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 side-by-side, so that they touch each other at the end face; at least... | 12/11/2007 |
| 7285929 | 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 conducting rings carried discretely about the shaft, and two or more conduc... | 10/23/2007 |
| 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 conducting rings carried discretely about the shaft, and two or more conduc... | 10/23/2007 |
| 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 collector ring is disposed proximate an exterior surface of the rotor member... | 09/25/2007 |
| 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 coil. The stator is disposed around an outer periphery of the rotor acro... | 08/21/2007 |
| 7256505 | Shaft mounted energy harvesting for wireless sensor operation and data transmission A device for monitoring a rotating shaft is provided. The device measures strain in the shaft and provides angular velocity and torque in the shaft. The device includes a sensor, sensor conditioning circuitry, a microprocessor, and a transmitter, all located on a ro... | 08/14/2007 |
| 7213579 | Fuel pump and method of manufacturing an armature for the fuel pump An axial length of the fuel pump is reduced, and the fuel pump is miniaturized, without reducing pumping performance. A space G is formed between coils 19 and the shaft 7 at the upper side of the core 11, and the lower portion of the comm... | 05/08/2007 |
| 7211911 | Automotive alternator having vibration-absorbing member disposed between rear frame and cover member An automotive alternator includes a rear frame having a rear end wall and a cover member covering a brush device. The cover member is connected to the rear end wall of the rear frame, and a vibration-absorbing member made of a rubber material is disposed between the... | 05/01/2007 |
| 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 collector ring having none, or can be used to enhance or re-form an exist... | 01/30/2007 |
| 7163403 | Rotating electrical transfer components The transfer apparatus is directed toward electrical transfer components providing an electrical connection to a rotating object. The transfer apparatus includes a stator base mounted proximate to the rotating object. An axle rotatably mounts at least one conductive... | 01/16/2007 |
| 7161255 | Isolated generator equipment compartment A power plant has a generator that is cooled by hydrogen gas. The power plant has a terminal compartment for housing stator terminals of the generator and conductor connections of a main bus taking electrical power away from the power plant. The power plant has a ge... | 01/09/2007 |
| 7131844 | Collector ring assembly A collector ring comprising a non-electrically conductive, non-rotatable slip ring base having a plurality of slip rings mounted thereon with the slip rings decreasing in diameter from the lower end of the base to the upper end of the base. Electrical wires are secu... | 11/07/2006 |
| 7117761 | Arrangement for a steering column A steering shaft arrangement comprises a first housing (9), which accommodates a contact roller (10), the first housing (9) being divided up into a first and second section (13, 14), of which the first section (13) is connected to ... | 10/10/2006 |
| 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 upper mounting surface 52 attac... | 10/10/2006 |
| 7111833 | Dual disc spring A dual spring includes a pair of conically-shaped spring sections, which are joined at a common fulcrum. One of the spring sections is disposed radially inward from the fulcrum and the other of the spring sections is disposed radially outward from the fulcrum. Both ... | 09/26/2006 |
| 7105983 | 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) is crimped around the upper marginal end portions... | 09/12/2006 |
| 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 elements supporting carbon brushes. According to the inventi... | 08/29/2006 |
| 7095243 | AC generator exciter rotor slip-ring test apparatus A test apparatus assembly is provided for testing an AC generator having an exciter rotor mounted to a shaft. The apparatus includes an annular end bell, a carbon brush assembly coupled to the end bell including a housing coupled to the end bell inner peripheral sur... | 08/22/2006 |
| 7071589 | Method and system for reducing bearing fluting in electromechanical machine A non-conductive insulating ring (210) is inserted between a motor bell (130) and a motor bearing (135) that supports a motor shaft (110). Stray currents that normally discharge thorough the motor shaft and the motor bearing to the motor ... | 07/04/2006 |
| 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 cooling fan is positioned at an end of a pole core of the rotor. The co... | 06/06/2006 |
| 7021973 | Electric rotating machine An output terminal board of this invention is capable of improving easy and simple installation of an electric rotating machine and wiring output harnesses so as to avoid thermal influence from a stator. The electric rotating machine 2 for vehicle acting as a... | 04/04/2006 |
| 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 housing is a rotatable slip ring and a flexible conductor. The flexib... | 03/28/2006 |
| 7009323 | Robust commutator bar anchoring configuration with dove-tailed features A commutator bar (10) includes a body and first and second anchors disposed in spaced relation with each anchor and coupled to a proximal end of the body. A free end of the first anchor (13) extends in a direction towards the proximal end H of the body... | 03/07/2006 |
| 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 surface to which three brush-holding springs are fixed by screws. Each of t... | 02/28/2006 |
| 7002269 | Slip ring unit with a printed circuit board A device for transferring electric currents that includes a slip ring unit that has a rotor with connecting wires and a stator and a printed circuit board fastened to the rotor, wherein the printed circuit board includes connectors in electrical contact with the con... | 02/21/2006 |
| 7001184 | Slip ring with connector pins A slip ring assembly for allowing electrical or electronic signal transfer between a stationary device and a rotating device includes a ring assembly and a brush assembly. The ring assembly comprises a plurality of assembled rings and spacers of selected widths posi... | 02/21/2006 |
