| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Electrical device with low friction contact parts | US15304450 | 2015-04-24 | US09660405B2 | 2017-05-23 | Hauke Carstensen; Björgvin Hjörvarsson; Max Wolff; Vassilios Kapaklis |
| An electrical device including an electrode arrangement having a magnet, and an electrode, an electrically conducting movable device, movable relative to the electrode arrangement and spaced apart from the electrode arrangement, whereby a gap (G) is formed therebetween, and a suspension including a liquid, a plurality of magnetic particles dispersed in the liquid and a plurality of non-magnetic electrically conducting particles dispersed in the liquid, which non-magnetic electrically conducting particles have higher electric conductivity than the magnetic particles, wherein the suspension) extends between the electrically movable device and the electrode arrangement in the gap (G), and wherein the magnet is arranged to provide a magnetic field through the suspension to thereby align the non-magnetic electrically conducting particles between the electrode arrangement and the electrically conducting movable device to obtain an electrical connection between the electrode arrangement and the electrically conducting movable device. | ||||||
| 142 | Machine tool or production machine or robot | US12308425 | 2007-04-13 | US07997905B2 | 2011-08-16 | Joachim Denk; Gerd Griepentrog; Klaus Hertinger; Hubert Schierling; Richard Schmidt; Ulrich Wetzel |
| A machine tool or a production machine, such as e.g. a multispindle machine, or a robot, is described, wherein a liquid metal lubricated slide bearing is not only used to transmit feed currents for electrical consumers but also to transmit currents for producing control signals. Accordingly, it is possible to apply via the liquid metal lubricated slide bearings a voltage of 600 volts in order to produce feed currents and a voltage of 24 volts in order to produce control signals. | ||||||
| 143 | Machine Tool or Production Machine or Robot | US12308425 | 2007-04-13 | US20100317201A1 | 2010-12-16 | Joachim Denk; Gerd Griepentrog; Klaus Hertinger; Hubert Schierling; Richard Schmidt; Ulrich Wetzel |
| A machine tool or a production machine, such as e.g. a multispindle machine, or a robot, is described, wherein a liquid metal lubricated slide bearing is not only used to transmit feed currents for electrical consumers but also to transmit currents for producing control signals. Accordingly, it is possible to apply via the liquid metal lubricated slide bearings a voltage of 600 volts in order to produce feed currents and a voltage of 24 volts in order to produce control signals. | ||||||
| 144 | SYSTEMS AND METHODS FOR PROVIDING ELECTRICAL TRANSMISSION IN DOWNHOLE TOOLS | US12348028 | 2009-01-02 | US20100170671A1 | 2010-07-08 | Joachim Sihler |
| A downhole drilling tool includes a housing defining an axial passageway and a shaft mounted for rotation within the axial passageway such that the housing and shaft form an annular gap. An electrical connector provides a signal to the shaft. The electrical connector includes a first lead assembly coupled to the housing and the shaft, and a second lead assembly coupled to the housing and the shaft. Each lead assembly has an outer ring electrode fixed to the housing and an inner ring electrode fixed to the shaft for rotation therewith such that connector gaps are formed between the outer ring electrodes and the inner ring electrodes. Drilling fluid is pumped through the annular gap to flow through the connector gaps to complete electrical connections between the outer ring electrodes and inner ring electrodes. | ||||||
| 145 | Rotatable audio and musical instrument cable | US11985739 | 2007-11-16 | US07473098B1 | 2009-01-06 | Anthony Poulos |
| A musical instrument cable that is functional for use while walking around and playing an electric guitar or other electric instrument. This provides the user with a freely rotatable and noiseless solution to old style cables which twist up during use and eventually break down due to mechanical fatigue of the internal wiring. Using a typical audio connector plug 10 on one end and connecting to a length of coaxial cable 12 with enough length to strain relief a loop of cable through the guitar strap and butt end of the instrument, the cable is then connected to a rotatable electrical connector 16. The connector 16 internally uses mercury to make the electrical connection between the moving contacts within the connector 16. The other end of the connector 16 then attaches to another length of cable 12 and to another connector plug 10 on the end of the cable 12. | ||||||
| 146 | Systems and methods for providing electrical contact with a rotating element of a machine | US11302889 | 2005-12-14 | US20070132334A1 | 2007-06-14 | Jack Kerlin |
| In accordance with the teachings herein, systems and methods are described for providing electrical contact with a rotating element of a machine. In one example system, a nozzle may be used to emit a stream of a molten metal material, the nozzle being configured to transmit electric current from a power source to the stream of molten metal material. The rotating element may be supported within the machine to rotate relative to the nozzle, and may include a current collector ring. The nozzle may be operable to emit the stream of molten metal material onto a localized portion of the current collector ring to transfer the electric current from the power source to the current collector ring, the localized portion of the current collector ring being a portion of the current collector ring that is less than an entire circumference of the current collector ring. | ||||||
| 147 | Electrical brushless rotary connector assembly | US10340100 | 2003-01-10 | US20030129857A1 | 2003-07-10 | LeRoy Welch |
| A rotary connector assembly for an electrical apparatus on a rotating component is presented. The rotary connector assembly has a fixed base for mounting the assembly within the rotating component. The rotary connector assembly is rotatable relative to the rotating component. The attachment has an annular flange at the outer periphery and a mechanism that contacts the flange and supports the rotary connector portion. Connections at the base have terminations to attach incoming wiring and at the rotary portion to attach wiring to the electrical apparatus. | ||||||
| 148 | Speed control in self-powered eddy current drive | US702751 | 1996-08-23 | US5821658A | 1998-10-13 | Paul Dewey Boggs, III |
| An eddy current drive has an electromagnet and an armature. Either one of the electromagnet or the armature is coupled to a motor shaft so as to rotate therewith, while the other is coupled to a load portion. The motor can rotate at a continuous speed, while the speed of the load portion can vary by varying the energization of the electromagnet, so as to vary the coupling between the electromagnet and the armature. The rotation of the motor shaft generates electrical current that is used to energize the electromagnet. The amount of the electrical current that is provided to the electromagnet can be varied to vary the output speed of the load portion. The electrical current can be generated by a member that rotates in unison with the electromagnet. A rotary coupler provides a speed control signal to vary the amount of current that is provided to the electromagnet. The rotary coupler can also provide power from the rotating generator to a stationary controller. | ||||||
| 149 | Eddy current drive | US498968 | 1995-07-06 | US5650679A | 1997-07-22 | Paul Dewey Boggs, III; Timothy J. Boggs |
| An eddy current drive has an electromagnet and an armature. Either one of the electromagnet or the armature is coupled to a motor shaft so as to rotate therewith, while the other is coupled to a load portion. The motor can rotate at a continuous speed, while the speed of the load portion can vary by varying the energization of the electromagnet, so as to vary the coupling between the electromagnet and the armature. The electromagnet is energized by way of bearings. The bearings provide a rotary coupling. In another embodiment, an electrical generator is provided. The rotation of the motor shaft generates electrical current that is used to energize the electromagnet. The amount of the electrical current that is provided to the electromagnet can be varied to vary the output speed of the load portion. | ||||||
| 150 | Differentially-pumped ferrofluidic seal | US901884 | 1992-06-22 | US5340122A | 1994-08-23 | James C. Toboni; Thomas J. Black, Jr. |
| A ferrofluidic seal arrangement for sealing a high-speed rotary shaft which passes between an environment at atmospheric or high pressure and an environment at high-vacuum is provided, which is especially useful in a high-speed rotating anode apparatus for generating x-rays in a CAT Scan apparatus or the like. A differentially-pumped region between a multi-stage ferrofluidic seal and a single-stage seal insures that no seal bursting into the high-vacuum region occurs. Bearings supporting the shaft are arranged in a mechanically-stable arrangement but are isolated from the high-vacuum environment. Thus, neither the high-vacuum environment nor the differentially-pumped region need be continually mechanically pumped, and a relatively light-weight apparatus results. The apparatus is electrically grounded by transferring the charge on the anode through the high-speed shaft out of the vacuum environment and to a slower-rotating shaft via an electrically conductive, flexible drive belt, the slower shaft rotating at a speed at which grounding by conventional means is feasible. | ||||||
| 151 | Electrical contact | US701289 | 1991-05-16 | US5112236A | 1992-05-12 | Jean-Paul Martin; Jean-Claude Moisand |
| An electrical contact comprising a male element and a female element in which the male element is mounted for sliding with a tight fit, an air chamber being formed between an end of the male element and a bottom of the female element, the male and female elements being at least partially made from a porous material impregnated with an aqueous solution charged with submicron metal particles. | ||||||
| 152 | Roller electrodes for electric-resistance welding machine | US173764 | 1988-03-28 | US4940873A | 1990-07-10 | Joseph R. Davies |
| An improved roller electrode combination for use in electric-resistance welders, the electrode having relatively rotatable components separated by very small gaps, and a liquid contained by the components across the gaps; where said liquid is nontoxic, and is highly conductive, both electrically and thermally. The conductive liquid is of a composite eutectic mixture of galliun (Ga), indium (In), tin (Sn) and zinc (Zn), by weight, being approximately 61% Ga, 25% In, 13% Sn, and 1% Zn. A protective coating of the order between 0.0025 and 0.025 millimeters thick is plated on said surfaces of at least one of the components, being of material from gold and/or the platinum family, such as rhodium (Rh). Coolant is circulated through one of the components, and special controls regulate the coolant flow and/or warn of unsafe coolant temperatures; and the conductive liquid thermally cools the other component. The rotor component may be formed of a sintered mixture of copper (Cu) and tungsten (W). The rotor component further may have a circumferentially continuous raised rib, on the exterior peripherial face adapted to be closely adjacent and directly engage at least the adjacent of the overlapped edges of the material to be welded. | ||||||
| 153 | Liquid metal circulation in an acyclic generator collector | US939500 | 1986-12-08 | US4712032A | 1987-12-08 | Burton D. Hatch |
| To minimize the effects of magnetohydrodynamic surge forces acting on the liquid metal in the collector gap of an acyclic generator, fluid flow impedance members in the form of annular, axially spaced compliant brushes are disposed in the outboard liquid metal containment gap defined between closely spaced, stator and rotor stepped surface formations. These brushes impede the communication to the liquid metal in this containment gap of pressure fluctuations generated in the liquid metal in the collector gap resulting from variations in the generator current transiting the collector gap. A hydrostatic pressure head may thus be maintained consistently at a location intermediate the collector and containment gaps for pumping the liquid metal in a recirculating path. | ||||||
| 154 | Gas recirculator for acyclic machines | US737753 | 1985-05-28 | US4629922A | 1986-12-16 | Thomas F. Balsa |
| A cover gas recirculator in an acyclic generator having liquid metal collors for reducing entrainment of the liquid metal in the gas. Radial passages in the stator housing provide natural recirculating paths for the cover gas to flow radially outward along the sides of the rotor and return inwardly through the passages. Scoops or lips located inward of the liquid metal collector divert the outward gas flow into the passages to minimize contact of the gas with the liquid metal. | ||||||
| 155 | Homopolar motor with pressurized liquid metal contact | US787322 | 1985-10-15 | US4628221A | 1986-12-09 | Niels O. Young |
| A homopolar machine having a hollow cylindrical conductor integral with an iron magnetic coupler forms a rotor ring which encircles one end of a rotor. The rotor ring spins within a hermetically sealed volume formed by two current collector rings. The volume is filled with a liquid metal under pressure and void free. The liquid metal provides electrical contact between the cylindrical conductor and the current collector rings and also acts as a lubricant for cylindrical journal bearings at each end of the rotor ring. The rotor is fixedly mounted on a shaft and spins on conventional bearings receiving torque and thrust loads from the rotor ring by magnetic coupling. | ||||||
| 156 | Current collector for rotating shaft | US508611 | 1983-06-28 | US4566744A | 1986-01-28 | Hendrik v Engelenburg; Rugerus S. Heemskerk |
| A current collector having a housing which has a rotatably supported electrical contact shaft having a projecting end that is engageable with a rotating drive shaft, the housing including a mercury contact formed by a space containing mercury, one end of the contact shaft being moveable into the space for contact with the mercury, and a sealing cover for the space. | ||||||
| 157 | Combined rotary electrical contact and shaft seal system | US846074 | 1977-10-27 | US4156155A | 1979-05-22 | Michael J. Cannell; Slade L. Carr; Donald B. Steen |
| A combined rotary electrical contact and seal system for rotating machines,sing a liquid metal for electrical continuity and convertible labyrinth and rotating rubbing face seals to effect a nearly perfect seal system for the liquid metal, both while the machine is at rest and during rotation at normal operating speed. To avoid leakage of the liquid metal while the rotor is stopped or at low speeds, a face seal is effected by a slight axial movement of the rotor. As the rotational speed increases, the rubbing face seal becomes a labyrinth seal to avoid wear while maintaining an adequate seal. The liquid metal level is monitored and drains are provided to recover any leakage losses, and a replenishment system is provided to maintain the liquid metal at a proper level. | ||||||
| 158 | High speed electrical contact device including a rotating liquid contact element | US36283273 | 1973-05-22 | US3835436A | 1974-09-10 | KLAUDY P |
| An electrical contact device for high currents and high current pickup speeds comprises a ring-shaped rotating metallic contact element, with the inner circumference of which a roller-shaped contact element that is made of solid material and rotates about an axis, is in electrical contact. The speed on the circumference of the roller-shaped contact element fully or almost fully coincides with the speed on the inner circumference of the ringshaped contact element. The ring-shaped contact element consists of an highly electrically conductive contact liquid which is held in an open groove by centrifugal force. The contact resistance and the friction losses of the contact device are very small.
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| 159 | Rotary high current pick-off | US3727167D | 1970-12-10 | US3727167A | 1973-04-10 | TOLE W; KYRIAKIS J |
| An electric conductor comprising two electrically conducting members at least one of which is rotatable. Both members are in contact with an electrically conducting liquid consisting of a metal or alloy having a melting point in the range of 0* to 150*.
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| 160 | Liquid metal collector velocity divider | US3604967D | 1970-04-10 | US3604967A | 1971-09-14 | KRULLS GERD E; BOOSER EARL R |
| Liquid metal collector is provided with a rotatable cup member and a stationary conductor blade. A floating ring is positioned generally intermediate between the blade and cup member and is immersed in the liquid metal such that is effectively reduces the rotational velocity of the liquid metal relative to the ring members by approximately one-half over the surface of the conductor blade. By so reducing the velocity of the liquid metal, power losses are reduced and antierosion characteristics are improved. A plurality of floating rings may be employed which will reduce the relative velocities even more.
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