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| Number | Title | Issue Date |
| 6970058 | L-C type filter module and helical filter made up of at least two such modules An L-C type filter module comprising at least two capacitors and at least one inductor. Each of the capacitors consists of a first elongated element made of conductive material partially fitted in a hole made in a second element made of conductive material, connecte... | 11/29/2005 |
| 6633219 | Coil for automated mounting The present invention relates to a coil (1) having a plurality of turns (2). The characteristic feature of the invention is that the turns (2) include a magnetic material or the turns (2) have an outer layer for carrying an electric current and have a mag... | 10/14/2003 |
| 6573822 | Tunable inductor using microelectromechanical switches A tunable inductor is disclosed. The tunable inductor comprises a helical or spiral inductor formed on a semiconductor substrate having an input and an output. The helical inductor has a full length that provides a full inductance. Also, a full inductance... | 06/03/2003 |
| 6366034 | Electric current variable-type inductor having closed loop characteristics and a horizontal linearity compensation circuit A current variable inductor having closed loop characteristics and a horizontal linearity compensation circuit. The current variable inductor having the closed loop characteristics is constructed with the legs of the first E-shaped core and the legs of th... | 04/02/2002 |
| 6101371 | Article comprising an inductor An article comprising a micro-machined, passively self-assembling inductor is disclosed. The inductor is fabricated using MEMS technology and advantageously utilizes materials compatible with CMOS such that inductor is monolithically integrable with a CMO... | 08/08/2000 |
| 5089930 | Temperature compensated linear variable transformer A differential transformer is provided comprising an elongated bobbin having primary and secondary coils wound about separated sections. A ferromagnetic armature is movably disposed within a core of the bobbin for movement between the separated sections. ... | 02/18/1992 |
| 5015998 | Null seeking position sensor A position sensor includes of two primary sense windings for establishing a forward or drive field, two secondary sense windings in which a voltage may be induced in the presence of the drive field, and at least one conductive screen capable of blocking t... | 05/14/1991 |
| 4810990 | Transducer with apertures in tubular conductor A variable inductance transducer includes a winding which is wound about a cylindrical former and a tubular member formed from electrically conductive material which is located about the winding and is movable axially relative thereto. The tubular member ... | 03/07/1989 |
| 4531109 | Tuning coil structure A tuning coil assembly includes an adjustable coil wound on a bobbin around which is placed a plastic coil support sleeve. The sleeve provides protection for the coil and aids in adjustment of a tuning slug inside the coil by an automatic alignment fixtur... | 07/23/1985 |
| 4517509 | Inductive device An induction device comprises a winding support with a base having connection points. The upper side of the base carries a centering member having an exterior surface that defines either a cylindrical or conical surface co-axial with the cylindrical centr... | 05/14/1985 |
| 4473810 | Device for measuring the current which flows in a conductor An a-c current sensor for measuring the current which flows in a conductor has an insulating frame having a central compartment open at its upper end and encompassed by a U-shaped receptacle for a bent portion of the conductor. A coil is housed in the cen... | 09/25/1984 |
| 4427961 | Chip type high frequency coil device In a high frequency coil device including a drum core having a lower flange and a shield casing to be securely attached thereto, lugs are provided at the lower ends of a pair of opposing side walls of the shield casing; grooves are formed in a pair of opp... | 01/24/1984 |
| 4374370 | Helical resonator filter A helical resonator filter comprising two or more helical coils is provided with a conductive coupling element between the helical coils for modifying the filter bandwidth. A coupling element is a conductor and is positioned in the maximum of the electric... | 02/15/1983 |
| 4353050 | Displacement measuring transducer A displacement-measuring transducer has a laminar member displaceable, for example under control of a vacuum actuator, within a housing containing respective pairs of coils spaced part in the displacement direction of the laminar member, which is provided... | 10/05/1982 |
| 4156192 | Inductive displacement transducer using plural magnetic screens rotatable about different axis to modify an inductance proportional to the displacement An inductive transducer intended, according to the invention, for converting the displacement of mechanical objects into an electric signal, comprising primary and secondary coils with cores, connected to one of mutually moving mechanical objects. The coi... | 05/22/1979 |
| 4123735 | Induction-type meter for measuring mechanical quantities An induction-type meter for measuring mechanical quantities, comprising a first converter to convert the controlled parameter into a displacement and having elements adapted to be moved relative to each other, and a second converter to convert the displac... | 10/31/1978 |
| 4053828 | Metal detector with first and second nested rectangular coils An orthogonal coil metal detector with nesting rectangular coils, each comprising a plurality of turns encapsulated in an insulating material and having a layer of electrical resistive material thereon. An encapsulating material in the gap between the coi... | 10/11/1977 |
| 3979706 | Shielded inductance coil with trimmer An electrical inductance coil, having a central opening therethrough, is surrounded by a spaced shield of magnetic metal, and a screw of magnetic metal is mounted in engagement with one side of the shield for adjustable extension through the central openi... | 09/07/1976 |
