Bizarre Patents
Wearable Device For Feeding and Observing Birds and Other Flying Animals
A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.
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| Number | Title | Issue Date |
| 7355501 | Evaluation device and vibration damper for a racket A device for contact-less measurement of distances (10, 20) in multiple directions of an electrically conductive body (2, 22) comprises a plurality of inductive elements (1, 4, 7). At least one (1) of the plurality of inductive elements (1, 4... | 04/08/2008 |
| 7262592 | Linear variable differential transformers for high precision position measurements A linear variable differential transformer (LVDT) is disclosed that has first and second coil is formed of materials that minimize the Barkhausen noise, and hence which produces outputs that are substantially independent of any Barkhausen noise. In an embodiment, th... | 08/28/2007 |
| 7248994 | Digital method and apparatus for sensing position with a linear variable differential transformer An apparatus and method for determining a linear position from a linear variable differential transformer (LVDT) including a primary coil driven by an excitation signal, and two secondary coils coupled to two correlated signals. The method includes converting the co... | 07/24/2007 |
| 7180399 | Transformer for resonant inverter A transformer for resonant inverter, which utilizes magnetic substances infilled between a primary coil and a secondary coil to compel part of the magnetic lines of force of the primary coil not to cross-link with the secondary coil, which thereby achieves regulatin... | 02/20/2007 |
| 7049907 | System and method for adjusting group delay A group delay adjusting circuit. The group delay adjusting circuit comprises an electronically adjustable variable capacitance, and an electronically variable virtual inductor coupled in parallel to the electronically variable capacitance at a node. ... | 05/23/2006 |
| 7015785 | Inverter transformer and core structure thereof An inverter transformer and a core structure thereof are described. The core structure of the inverter transformer has a first core and a second core. The first core has a plurality of fork elements, a connection element, and a bottom element. The fork elements are ... | 03/21/2006 |
| 6891460 | Rotor transformer positioning mechanism and operating method therefor A rotor transformer positioning mechanism permitting automatic positioning of a rotor transformer, having a first winding, relative to a rotor stack, having a second winding, mounted on a common rotary shaft to thereby permit a crossover having a predetermined lengt... | 05/10/2005 |
| 6847283 | Inductive translator composed of two spools with respective cores The invention concerns an inductive transmitter comprising two coils (1, 2), each with one core (3, 4). The two cores (3, 4) are capable of being moved relative to each other. Two systems are integrated in the transmitter that make it possible t... | 01/25/2005 |
| 6657528 | Slope gap inductor for line harmonic current reduction A slope gap inductor for reducing line harmonic currents. The slope gap inductor comprises a first inductor core portion, and a second inductor core portion positioned relative to said first inductor core portion so as to form an inductor gap, wherein the... | 12/02/2003 |
| 6597271 | Electromagnetic apparatus having adjusting effective core gap An electromagnetic apparatus having an adjusting effective core gap includes: (a) an electrical winding; and (b) a ferrous core situated proximal with the electrical winding. The core has a first terminus and a second terminus arranged in spaced relation ... | 07/22/2003 |
| 6392521 | Variable inductance transformer with electronic control A variable inductance transformer includes a core defining a gap between opposing first and second ends. A primary winding and at least one secondary winding are coupled to the core. The secondary winding is provided for stepping up the voltage across the... | 05/21/2002 |
| 6211765 | Coil device The present invention provides a coil device including magnetic cores having gaps at positions of at least opposing to each other in a magnetic path to be formed and a coil wound to include at least one of said gaps and its improvement consists in the fac... | 04/03/2001 |
| 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 |
| 5999077 | Voltage controlled variable inductor A voltage controlled variable inductor provides a rapidly variable inducte for high power frequency dependent circuit applications. Continuously variable inductance values having a high Q factor are obtainable with the application of only a minimal amoun... | 12/07/1999 |
| 5903205 | Induction-type rotational position detecting device A group of secondary windings are distributively provided on a stator over a predetermined range, and the respective inductance of the secondary windings in the group is set in such a manner to present predetermined inductance distribution. A rotor has an... | 05/11/1999 |
| 5760670 | Transformer core structure The present invention relates to a tranformer core structure, which includes a rectangular frame core having two long sides and two short sides, with one short side having a recessed part and the other short side being closed to form a junction surface of... | 06/02/1998 |
| 5701114 | Rotary variable differential transformers A Rotary Variable Differential Transformer, having a short axial length, small diameter, and a wide angle, linear output range, is provided. The Rotary Variable Differential Transformer (RVDT) comprised of a housing, a hollow cylindrical coil form made of... | 12/23/1997 |
| 5382937 | Coil device A coil device which can accurately maintain the proportion of voltage caused by the change of the current flowing in a coil device, wherein the outside magnetic substance and the coil are fixed during an assembly of the coil device so that inside magnetic... | 01/17/1995 |
| 5347257 | Varying inductances A variable inductor includes at most one coil of electrically conductive material and at most two distinct, separately formed portions of magnetic core material positioned to conduct magnetic flux resulting from passage of electrical current through the c... | 09/13/1994 |
| 5347255 | Variable inductance coil device The variable inductance coil device having an outer magnetic member, a bobbin member, a coil member and an inner magnetic member. A female thread (thread portion) is provided in the inner periphery of the tube of the bobbin member, and a male thread (thre... | 09/13/1994 |
| 5345209 | Adjustment system for a coil device The present invention is comprised of an outside magnetic substance forming an endless loop, an inside magnetic substance formed inside of said outside magnetic substance and coil wound on the periphery of said inside magnetic substance. In a coil device ... | 09/06/1994 |
| 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 |
| 4885445 | High-frequency transformer for microwave oven A high-frequency transformer for a microwave oven comprises: an E-shaped first core of ferrite of a low-voltage side; a primary winding wound around the first core over a coil bobbin; an E-shaped second core of ferrite of a high-voltage side disposed in o... | 12/05/1989 |
| 4806863 | Eddy current apparatus including cylindrical coil with flux concentrator for high resolution detection of flaws in conductive objects Apparatus for testing for flaws in conductive objects which includes a coil of electrically conducting wire and an associated flux concentrator of electromagnetically active material which is disposed radially from the coil, sized and shaped to provide a ... | 02/21/1989 |
| 4764744 | Overload relay having adjustably gapped current transformers A static trip overload relay includes a plurality of phase current sensing transformers having two-piece cores. One core piece of each transformer core is positionally mounted by the relay housing, while the other piece is positionally mounted by a carryi... | 08/16/1988 |
| 4642595 | Contactless electric control-handle A contactless electric control handle having a field coil for forming an electro-magnetic field, inductive pick-up coils angularly spaced apart around the axis of the field. The rod of the control handle constitutes the core of the field coil. The field c... | 02/10/1987 |
| 4542062 | Magnetic recording medium A magnetic recording medium comprises a magnetic alloy layer on a substrate wherein said magnetic alloy layer is made of 70-90 wt. % of Co and 30-10 wt. % of at least one of Si, Sb, Li, V, Ta, Ge and Pt and a magnetization axis of said magnetic alloy is s... | 09/17/1985 |
| 4529956 | Combined transformer and variable inductor A pot-core transformer with a magnetic shunt variable to add the function of a variable series inductor independent of the transformer.... | 07/16/1985 |
| 4464645 | Angular displacement transducer of the variable reluctance type An angular displacement transducer of the variable reluctance type is disclosed. It utilizes two relatively rotatable rotors with two sets of magnetic circuits and a coil associated with each magnetic circuit. Each set of magnetic circuits has a set of ma... | 08/07/1984 |
| 4462015 | Electromagnetic pick-off control handle A joystick mechanism generates output signals corresponding to the X and Y components of a manual command. A transducer mounted in a housing includes a ferromagnetic vane member connected to the bottom of a handle extending into the housing. The transduce... | 07/24/1984 |
| 4446741 | Vibration transducer A vibration transducer for measuring vibrations and shocks, especially vibrations which occur during the operation of machines and mechanical equipment. The induction vibration transducer comprises a permanent magnet movably mounted with respect to at lea... | 05/08/1984 |
| 4445103 | Rotary differential transformer with constant amplitude and variable phase output A rotary differential transformer is provided which has a constant amplitude output the phase angle of which varies with the angular displacement of a rotor. The rotor contains a pair of core segments of magnetic material which serve to couple portions of... | 04/24/1984 |
| 4434412 | Contactless, electric control-handle Contactless, electric control-handle comprising a field coil provided with a core for producing an alternating, electro-magnetic field, pairwise series connected, inductive pick-ups angularly spaced apart and each having a core, and an actuating-rod subje... | 02/28/1984 |
| 4401986 | Position sensor and system A non-contacting position sensor has an exciting coil disposed in a plane and has a sensing coil located in an intersecting plane so that portions of the sensing coil are disposed symmetrically around a portion of the exciting coil in mutually inductive r... | 08/30/1983 |
| 4371116 | Variable reactance alignment detector and control An alignment system with a variable reactance element is provided for detection of the angular alignment of two variably positionable members. The variable reactance elements form two oppositely varying impedances. A preferred embodiment of the variable r... | 02/01/1983 |
| 4266732 | Variable reactance alignment detector and control An alignment system with a variable reactance element is provided for detection of the angular alignment of two variably positionable members. The variable reactance elements form two oppositely varying impedances. A preferred embodiment of the variable r... | 05/12/1981 |
| 4189674 | Signal transducing means using a bistable magnetic device A signal transducing means for receiving input signals and delivering output signals comprising a bistable magnetic device which alters its magnetic state when the density of magnetic flux to which it is subject passes through a predetermined value, and d... | 02/19/1980 |
| 4149133 | Variable differential transformer apparatus A linear variable differential transformer includes a primary winding and two secondary windings in spaced stacked relation on a core unit. The core unit includes similar cup-shaped pot cores mounted in opposed opening relationship and having abutting cyl... | 04/10/1979 |
| 4146859 | Saturable reactor for pincushion distortion correction A saturable reactor for correction of pincushion distortion of a TV picture tube raster has, in one form, a magnetically saturable two window core. A single wire control coil is wound transversely around the central leg segment of the core and is connecte... | 03/27/1979 |
| 4032874 | Reactor core A reactor core includes a plurality of laminations of trapezoidal shape forming the legs of the core. These legs are arranged in generally rectangular configuration with air gaps provided at the corners of the core. These air gaps extend diagonally of the... | 06/28/1977 |
