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| Number | Title | Issue Date |
| 4962354 | Superconductive voltage stabilizer A superconductive voltage stabilizer comprises an AC/DC converter, a voltage regulator, an energy storage cell and a superconducting energy storage coil. Alternating current is converted to direct current and stored in a superconducting coil. The stored d... | 10/09/1990 |
| 4939444 | Dual coil super conducting apparatus for storing electrical energy Disclosed is an apparatus for storing electrical energy in a superconducting coil. The secondary phenomenon of magnetic induction which limits the size of existing superconducting energy storage coils is overcome by utilizing two superconductor material c... | 07/03/1990 |
| 4922367 | Circuit for preventing latch-up of parasitic thyristor formed in CMOS integrated circuit A CMOS circuit including a variable conductor means interposed between a power supply and the CMOS circuit. The CMOS circuit comprises a P channel MOS FET and an N channel MOS FET laterally formed on the surface of a semiconductor substrate, inherently pr... | 05/01/1990 |
| 4906861 | Superconducting current reversing switch A superconducting switching device having no moving components for reversing current flow through a load. This load typically is a superconducting magnet and, in this application, the present invention also selectively serves as a persistent switch. The i... | 03/06/1990 |
| 4894556 | Hybrid pulse power transformer A pulsed transformer utilizing the transition of the primary winding from a superconducting state to a normal state to increase the efficiency of energy transfer to the secondary winding thereof and hence to a load across the secondary winding. The primar... | 01/16/1990 |
| 4764837 | Superconductive circuit for controlling quench events A circuit is provided comprising a plurality of series connected superconductive coils. Each of a plurality of series connected shunt resistors is connected in parallel with at least one corresponding series connected superconductive coil. A superconducti... | 08/16/1988 |
| 4700257 | Superconductive AC current limiter An AC current limiter for a power transport line including an overload circuit-breaker member (6), the limiter comprising a transformer having a primary winding (6A) connected in series between the power supply circuit (R) and the load circuit (U) and one... | 10/13/1987 |
| 4490769 | Solid-state circuit breaker with current limiting characteristic using a superconducting coil A thyristor bridge interposes an ac source and a load. A series connected DC source and superconducting coil within the bridge biases the thyristors thereof so as to permit bidirectional ac current flow therethrough under normal operating conditions. Upon... | 12/25/1984 |
| 4464617 | Superconducting synchronous electric machine The electric machine comprises a multiphase armature winding 6, a superconducting field winding 4, and a multiphase compensating winding 3 constructed in the form of sections 10. Each phase of the winding 3 is connected in series to one of the phases of t... | 08/07/1984 |
| 4459495 | Josephson current regulator A Josephson current regulator circuit is described for regulating the gate current to a Josephson load device. The regulator circuit is located between the source of the gate current and the Josephson load, and is comprised of Josephson devices having a c... | 07/10/1984 |
| 4438474 | Current limiter and VAR generator utilizing a superconducting coil A current control device which may act as a current limiter and/or a VAR generator through the use of a superconducting inductor is taught. In one of the embodiments of the present invention, a full wave bridge rectifier network is serially inserted in on... | 03/20/1984 |
| 4348710 | Method and structure for compensating for variations in vapor cooled lead resistance of superconducting magnets A superconducting magnet arrangement having a sealed cryogenic environment utilizing liquid helium, a superconducting coil immersed in the liquid helium, a constant current power supply exterior of the cryogenic environment and connected to the coil by le... | 09/07/1982 |
| 4348630 | Superconducting VAR control Static VAR control means employing an asymmetrically controlled Graetz bridge and a superconducting direct current coil having low losses and low cost characteristics.... | 09/07/1982 |
| 4257080 | Current limiting devices A current-limiting device for an alternating current system has at least two iron-cored saturable reactors for each phase, each reactor core being of double-window configuration with an alternating current winding on the central limb, and a superconductin... | 03/17/1981 |
| 4222004 | Inductive transformer-type storage device An inductive transformer-type storage device comprising a primary winding and a secondary winding arranged inside the primary winding coaxially thereof. The secondary winding has a substantially greater number of turns than the primary winding and is encl... | 09/09/1980 |
| 4135127 | Direct current transformer A direct current transformer in which the primary consists of an elongated strip of superconductive material, across the ends of which is applied a direct current potential. Parallel and closely spaced to the primary is positioned a transformer secondary ... | 01/16/1979 |
| 4044298 | Super conducting device with minimal pinning Type II superconductive materials having greatly diminished vortex pinning as a result of maintaining the ratio of the average scale of structural disorder of the materials to vortex core size to not greater than about 120% of the minimum such ratio, supe... | 08/23/1977 |
| 3965411 | Gradient wound trim coil for trimming a primary pickup coil One or more primary superconductive magnetic field pickup coils are trimmed by means of one or more auxiliary super-conductive trim coils coupled to a magnetic flux sensor for sensing the magnetic flux coupled to the sensor by said primary and auxiliary c... | 06/22/1976 |
| 3956690 | Trimmed superconductive magnetic pickup coil circuits A primary superconductive magnetic field component or gradient pickup coil circuit is trimmed by means of one or more auxiliary superconductive trim coil circuits electromagnetically coupled to a magnetic flux sensor for sensing the magnetic flux coupled ... | 05/11/1976 |
