Class 336/226 - Figure "8" section

Subclass of Class 336 - Inductor devices
Definition: Subject matter wherein the coil conductor has a "figure
No. of patents: 20
Last issue date: 01/05/2010

Number	Title	Issue Date
7642891	Planar inductance A planar inductance, such as for monolithic HF oscillators, has planar spiral windings, each with two loops, where each winding is in the form of an “eight” with cross-conductors carrying current in the same direction and running between two loops. ...	01/05/2010
7242275	Variable inductor A variable inductor which avoids electrical breakdown of the insulation in the control windings when used in high power applications includes a core formed of a permeable magnetic material, the core having three legs, including a center leg and two outer legs. A mai...	07/10/2007
7148783	Microwave tunable inductor and associated methods The inductor, preferably a microwave tunable inductor, includes first and second wires twisted together to define a double helix having a first end and second end with a plurality of twists therebetween. First and second terminals are at the first end of the double ...	12/12/2006
7078993	Layered wing coil for an electromagnetic dent remover An electromagnet assembly for supplying a region of concentrated electromagnetic flux is provided. The assembly includes a flat strip of an electrically conductive metal. The strip has a first and a second opposite planar surfaces at least one of which is covered by...	07/18/2006
6356180	High-voltage generating transformer In a high-voltage generating transformer having primary and secondary coil bobbins coaxially mounted on one another relative to a center core, an element wire of the primary coil is wound spirally around the primary coil bobbin in such a way that the both...	03/12/2002
5245307	Search coil assembly for electrically conductive object detection A search coil assembly for an inductive search device of the transmitter/receiver type is described having advantages relative to manufacture, repeat accuracy and sensitivity in operation. This is made possible by the utilization of printed-circuit board ...	09/14/1993
5229652	Non-contact data and power connector for computer based modules The invention discloses a non-contact way to provide electrical power and two-way digital communications between a host computer and its peripheral modules, such as IC memory cards, modems, and A/D converters. A special magnetic core is employed to provid...	07/20/1993
5179512	Gate drive for synchronous rectifiers in resonant converters A resonant converter, including a transformer for separating a high-voltage (primary) side from a relatively low-voltage (secondary) side, has at least one synchronous rectifier and an auxiliary sense winding coupled to the gate thereof. The input capacit...	01/12/1993
5168440	Transformer/rectifier assembly with a figure eight secondary structure A transformer with a secondary structure formed in a figure 8 pattern. The secondary structure defines two conducting paths which each incorporate a rectifier and each encircle part of the core only once. The conducting paths overlap and cross only in the...	12/01/1992
5125386	Coil ignition unit for an internal combustion engine The ignition unit includes a support housing containing two ignition coils each for the connection to at least one, and preferably two, associated spark plugs. Each ignition coil comprises a primary winding and a second winding disposed around the end arm...	06/30/1992
5084958	Method of making conductive film magnetic components A conductive film magnetic component such as an inductor or transformer includes a conductive film winding having a generally serpentine configuration when disposed in a plane. This film is folded to form a stack of layers with each "layer" comprising par...	02/04/1992
5017902	Conductive film magnetic components A conductive film magnetic component such as an inductor or transformer includes a conductive film winding having a generally serpentine configuration when disposed in a plane. This film is folded to form a stack of layers with each "layer" comprising par...	05/21/1991
4959630	High-frequency transformer A high-frequency transformer is constructed from a flexible circuit comprising a primary conductive film winding and one or more secondary conductive film windings disposed on a single dielectric membrane. The flexible circuit is folded to form a stack of...	09/25/1990
4430615	Reflection type probes for eddy current testing instruments A reflection type probe for an eddy current testing instrument comprises a ferromagnetic core 2, 3 and a driver coil system 8 and a pick-up coil system 9 mounted on the core, the core having four limbs 4 to 7 each with a free end. One of the coil systems ...	02/07/1984
4307334	Transformer for use in a static inverter A novel and economical transformer is described for use in a static inverter in association with one or two switching devices, typically transistors. The transformer produces an output for control of the associated switching device(s) which changes in sen...	12/22/1981
4245179	Planar electrodeless fluorescent light source A light source includes a planar electrodeless fluorescent lamp. The lamp envelope has two parallel light transmitting plates separated and sealed by a spacing frame, has a phosphor coating on its inner surface, and encloses a fill material which emits ul...	01/13/1981
4240010	Electrodeless fluorescent light source having reduced far field electromagnetic radiation levels An electrodeless fluorescent light source includes an electrodeless fluorescent lamp and an induction coil wherein the magnitude of the far field electromagnetic radiation, produced directly by the induction coil, is minimized. The induction coil includes...	12/16/1980
4223360	Magnetic recording transducers A magnetic transducing assembly including an elongate magnetic flux carrying core member, a substrate with a flat multi-turn spiral on a surface thereof and slit opening at the center of the spiral. The core is so engaged in the slit that the plane of the...	09/16/1980
4207544	High-frequency transformer A high frequency transformer for a wide range of frequencies and of the kind comprising a winding means attached on a core means, the winding means consisting of two parallel conductors isolated from each other, of which conductors one constitutes a prima...	06/10/1980
4053856	Quasi-toroidal inductor and resonator An inductor comprises a quasi-toroidal conductive envelope having a discontinuity across which alternating voltage may be applied. The inductor may comprise a plurality of interrupted turns connected in parallel or may be formed by a continuous conductive...	10/11/1977

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Class 336/226 - Figure "8" section