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System for magnetically attaching templeless eyewear to a person
A system of eyewear that eliminates the need for hinges on the frames of the eyewear.
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| Number | Title | Issue Date |
| 8115582 | Inductor topologies with substantial common-mode and differential-mode inductance An inductor includes a core that has a window (164). The core includes a first core member and a second core member. A first winding is coupled to the first core member and a second winding is coupled to the second core member. A shell surrounds the core. Pai... | 02/14/2012 |
| 7405951 | Switching power supply device A switching power supply includes: a first series circuit, connected to both terminals of a direct current power supply Vdc1, in which a primary winding 5a of a transformer T, a reactor L3 and a first switch Q1 are connected in ser... | 07/29/2008 |
| 7339298 | Compliant motor driven variable electrical device A motor driven electrical device includes: a variable electrical device having a rotational variable control; a first support plate positioned above the variable electrical device; a motor support plate pliably attached to the first support plate using a pliable sep... | 03/04/2008 |
| 7315231 | Electrical reactor assembly having center taps An electrical reactor assembly and method of assembly is disclosed. The reactor is formed from a combination of a magnetic T-core and a pair of magnetic L-cores. A plurality of comb-like separators is placed over a vertical portion of the T-core. A wire, with a rect... | 01/01/2008 |
| 7268991 | Electrical circuit protection system A system to protect electrical circuits from rapid changes of voltage associated with a fault in an electrical load comprises an inductor placed in series between a drive circuit and load. The inductor is designed to be inefficient or lossy when the inductor core is... | 09/11/2007 |
| 7259650 | Magnetic element A magnetic element including coils; a first core and a second core each of which has a planar plate portion, outer leg portions and a middle leg portion which is inserted into aforesaid coil; and an intermediate core to form a closed magnetic circuit which is dispos... | 08/21/2007 |
| 7221252 | Transformer A transformer structure is disclosed. The transformer comprises a primary winding coil, plural secondary winding coils, a first winding portion, plural second winding portions, plural partition plates, a channel, and a magnetic core assembly. The first winding porti... | 05/22/2007 |
| 7142081 | Multiple three-phase inductor with a common core An electrical inductor assembly has a plurality of three-phase inductors on a common core. Each inductor includes three coils wound around separate legs of the core. Core bridges extend across the legs to provide an inter-leg path for the magnetic flux produced by e... | 11/28/2006 |
| 7030724 | Method and apparatus for coil-less magnetoelectric magnetic flux switching for permanent magnets Methods and apparatus that employ a coil-less magnetoelectric flux switch arrangement to repeatedly switch magnetic flux from at least one permanent magnet for the purposes of generating motive force and/or electrical energy. ... | 04/18/2006 |
| 6950004 | Quadrilateral electromagnetic coil assembly Prior art electromagnetic coil technology in tattoo machines employs a round steel post to alternately repel and attract an armature bar retained by a spring, reciprocally moving a needle bar and attached needle groupings into and out of the skin in the act of tatto... | 09/27/2005 |
| 6946938 | Method and apparatus for coil-less magnetoelectric magnetic flux switching for permanent magnets Methods and apparatus that employ a coil-less magnetoelectric flux switch arrangement to repeatedly switch magnetic flux from at least one permanent magnet for the purposes of generating motive force and/or electrical energy. ... | 09/20/2005 |
| 6924724 | Method and apparatus for transformer bandwidth enhancement A method and apparatus for transformer bandwidth enhancement is disclosed. In one embodiment, a transformer is provided for use in a high frequency communication environment. In one configuration, the transformer is configured with one or more compensation networks ... | 08/02/2005 |
| 6917271 | Cross current control for power converter systems and integrated magnetic choke assembly A cross current control system for multiple, parallel-coupled power converters includes common mode chokes, local cross current feedback controllers, and local converter controllers. Each common mode choke is coupled to a respective power converter. Each local cross... | 07/12/2005 |
| 6744343 | Flyback transformer mounting structure for video apparatus A flyback transformer is mounted on a main wiring board formed with a power circuit. A mounting bracket shaped like an L-character in plan view is integrally molded on a chassis. A mounting portion disposed at the top of the flyback transformer is fixed by screws to... | 06/01/2004 |
| 6606020 | Low cost method of making a high impedance electrical transformer and products of said method A low cost method of making a high impedance electrical transformer is disclosed as well as products of such method. The method comprises adding a step during the process of winding a transformer component which imparts higher impedance to the transformer... | 08/12/2003 |
| 6597272 | Transformer having stabilized power output A transformer includes a ferrite base plate having a chamber for receiving a winding and one or more further windings which may be coupled to a ground. The windings are electrically coupled together, and separated from each other by partitions. An insulat... | 07/22/2003 |
| 6441712 | Tuned filters for electric power systems A tuned filter for connection to a busbar in a high voltage electric power system. The filter incorporates a variable inductor comprising a main winding, auxiliary windings and switching circuitry associated with each auxiliary winding. The auxiliary wind... | 08/27/2002 |
| 6191676 | Apparatus for suppressing nonlinear current drawing characteristics Methods and apparatus are disclosed for suppressing or eliminating nonlinear current drawing characteristics, while at the same time substantially eliminating high order current harmonics. In accordance with various aspects of the present invention, an en... | 02/20/2001 |
| 6137391 | Flux-controlled type variable transformer A flux-controlled variable transformer can control voltage at a high speed without using any voltage adjusting tap. The transformer has a first and second magnetic circuits. The first magnetic circuit is composed of a first and second U-cut cores (13 and ... | 10/24/2000 |
| 6037686 | Current compensated choke filter for multi-phase motor drives Each torque-producing phase current of a multi-phase motor is passed through a filter which includes an R/C shunt to ground and a series, current-compensated choke. Each choke has a winding in series with each phase so that the net current generated by ph... | 03/14/2000 |
| 5977853 | Choke coil for eliminating common mode noise and normal mode noise There is provided a choke coil having a sufficient noise eliminating effect against common mode and normal mode noises. The choke coil has two bobbins, a pair of windings wound around the respective bobbins, first and second magnetic cores which are each ... | 11/02/1999 |
| 5956073 | Noise-limiting transformer apparatus and method for making Embodiments of the invention include a transformer device having a saturation region for limiting ingress noise and other noise. The transformer comprises a magnetic core, an input coil and an output coil arranged so that the output signal caused by the m... | 09/21/1999 |
| 5926083 | Static magnet dynamo for generating electromotive force based on changing flux density of an open magnetic path A static magnet dynamo including at least one permanent magnet having different poles; a first core comprising a soft magnetic material and which couples the different poles of the permanent magnet to form a closed magnetic path therein; a second core com... | 07/20/1999 |
| 5853521 | Multi-cathode electron beam plasma etcher A multi-cathode electron beam plasma etcher is disclosed. The multi-cathode electron beam plasma etcher is comprised of: a vacuum chamber; several cathodes which are installed in the upper end of the upper part of the chamber and generates an electron bea... | 12/29/1998 |
| 5754034 | Electrically controllable inductor An apparatus for providing an electrically controllable inductor which uses a first and a second magnetic core (20, 24) spaced apart from one another. A DC bias coil (22) is wound on the first magnetic core (20). An inductor coil (26) is wound on both the... | 05/19/1998 |
| 5525951 | Choke coil Two coils 3a, 3b are wound over adjacent portions of a first magnetic core having two closed magnetic circuits and a second magnetic core. The winding directions of the two coils are set so that the magnetomotive forces generated by both coils may cancel ... | 06/11/1996 |
| 5523673 | Electrically controllable inductor An apparatus for providing an electrically controllable inductor uses a first and a second magnetic core (20, 24) spaced apart from one another. A DC bias coil (22) is wound on the first magnetic core (20). An inductor coil (26) is wound on both the first... | 06/04/1996 |
| 5440286 | Electrical transformer structure with coil covers A transformer in which the primary coil and the secondary coil are insulated from the iron laminations which form part of its flux paths by insulated covers which snap-on to the primary and secondary coils.... | 08/08/1995 |
| 5266916 | Compact transformer Here is disclosed a compact transformer comprising a plurality of core elements so combined to form a complete core defining two closed magnetic circuits, one of these magnetic circuits being provided with primary and secondary windings of a first coil an... | 11/30/1993 |
| 5187428 | Shunt coil controlled transformer A transformer having a shunt magnetic path and a shunt coil is provided. The transformer includes control circuitry to control the output of the transformer by controlling current flow in the shunt coil, thereby controlling the flux through the shunt magn... | 02/16/1993 |
| 5138295 | Electrical transformer arrangement with plate insulators A transformer in which the tops and bottoms of both the primary and secondary coils are insulated from the magnetic circuit by substantially flat plate plastic insulators adjacent both the top and bottom of both coils.... | 08/11/1992 |
| 4952899 | Shunt holding means for ballasts A ballast assembly for a fluorescent lighting fixture includes a magnetic core, a primary winding and a secondary winding, both windings mounted on a central leg of the core, with a shunt disposed between the windings to prevent a flux generated by the pr... | 08/28/1990 |
| 4943763 | Ferroresonant transformer with dual outputs A ferroresonant transformer having dual outputs electrically and magnetically isolated from one another. The transformer includes a core, a primary coil on the core adapted to be connected to a source of alternating current, and two pairs of secondary win... | 07/24/1990 |
| 4937547 | Shunt retaining clip in a ballast A ballast assembly for a fluorescent lighting fixture has a magnetic core, a primary winding and a secondary winding, both windings mounted on a central leg of the core, with a shunt disposed between the windings to prevent a flux generated by the primary... | 06/26/1990 |
| 4931761 | Compact transformer Here is disclosed a compact transformer comprising a plurality of core elements so combined to form a complete core defining two closed magnetic circuits, one of these magnetic circuits being provided with primary and secondary windings of a first coil an... | 06/05/1990 |
| 4916424 | Electric part in the form of windings Here is disclosed an electric part in the form of windings particularly suitable to be implemented as a compact transformer comprising an inner bobbin having a cylindrical coil supporting portion around which a coil has been wound, and first and second ou... | 04/10/1990 |
| 4862059 | Ferroresonant constant AC voltage transformer Primary and secondary windings of each transformer in a three-phase system each form a pair of independent windings, the first winding of each of the primary and secondary pairs formed on the iron core of one of the transformers and the second winding of ... | 08/29/1989 |
| 4771257 | Ballast transformer with bobbins coils Coil bobbins are disclosed having flanged coil support portions provided with outboard terminal housings projecting beyond the flange rim and defining inwardly extending terminal-receiving cavities. The end walls of the housings are slotted to allow a wir... | 09/13/1988 |
| 4654564 | Saturable reactor with toroidal shunt paths A saturable reactor has a center control winding electromagnetically coupled to a pair of outer windings which, in turn, are each coupled in circuit with a respective toroidal shunt winding. The reactor provides side pincushion correction and eliminates c... | 03/31/1987 |
| 4654563 | Fluorescent lamp ballast A circuit containing a ballast for one or more fluorescent lamps. The circuit includes a first inductor in series with a voltage input terminal and a first capacitor to form a series resonant circuit to provide a starting voltage to the lamps. A second, s... | 03/31/1987 |
