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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 8129987 | Multiple receiver coil dual mode electromagnetic detector An electromagnetic detection system comprising: a transmitter loop for generating a primary magnetic field, and a first pair of spaced apart receiver coils and second pair of spaced apart receiver coils for measuring a secondary magnetic field generated in response ... | 03/06/2012 |
| 8125219 | Method for determining and evaluating eddy-current displays, in particular cracks, in a test object made from an electrically conductive material A method for determining and evaluating eddy-current displays, in particular cracks, in a test object made from an electrically conductive material is provided. The method uses the following steps, applying an alternating electromagnetic field of a predetermined con... | 02/28/2012 |
| 7982457 | Method and eddy current system for non-contact determination of interface resistance The present invention is a method and an eddy current system for non-contact determination of the resistance between the current lead stripe and the coating during continuous fabrication of chemical power sources such as batteries, supercapacitors, photovoltaic modu... | 07/19/2011 |
| 7893691 | Electromagnetic impedance sensor and passenger protection system An electromagnetic impedance sensor detects an object made of conducting material or soft magnetic material with contact-free. The sensor includes: a detection coil; and a detection circuit for supplying electricity to the coil and for measuring electromagnetic impe... | 02/22/2011 |
| 7759932 | Magnetic field response sensor for conductive media A magnetic field response sensor comprises an inductor placed at a fixed separation distance from a conductive surface to address the low RF transmissivity of conductive surfaces. The minimum distance for separation is determined by the sensor response. The inductor... | 07/20/2010 |
| 7719265 | Methods for determining particle size of metal nanocatalyst for growing carbon nanotubes Methods and processes for determining the particle size distribution of metal catalysts are provides. Superconducting Quantum Interference Device (SQUID) magnetometer is used to evaluate the magnetic catalyst particle sizes dispersed in the support material. Depende... | 05/18/2010 |
| 7696747 | Electromagnetic induction type inspection device and method Any inspection object regardless of material can easily be inspected or discriminated with high accuracy and high sensitivity by being placed in a magnetic field generated by applying an alternating current to an exciting coil and detecting changes of voltage level ... | 04/13/2010 |
| 7663361 | Metal detection device A metal detection device is capable of effectively detecting a metal mixed in food or the like by generating AC magnetic field simultaneously tuned to respective frequencies by a single transmission coil in response to frequency components of different frequencies w... | 02/16/2010 |
| 7656153 | Metal detector with improved receiver coil A pulse-induction-type metal detector in which the receiver coil comprises bifilar windings that are connected in series, opposing during the coil pulse and in series, aiding, following the coil pulse. Pick-up of energy by the receiver coil during the coil pulse is ... | 02/02/2010 |
| 7589525 | Magnetic field response sensor for conductive media A magnetic field response sensor comprises an inductor placed at a fixed separation distance from a conductive surface to address the low RF transmissivity of conductive surfaces. The minimum distance for separation is determined by the sensor response. The inductor... | 09/15/2009 |
| 7514919 | Sensing apparatus and method A sensor for sensing a parameter such as position, comprises: (i) an excitation winding for example coils (7, 9) in quadrature; (ii) a signal generator (41, 42, 43) operable to generate an excitation signals and arranged to apply the generated excitati... | 04/07/2009 |
| 7489130 | Metal detection device A metal detection device for a working unit with at least one driven working element for conveying crop material has windings for generating electrical detection signals when metal objects are present in the region of the working unit, and the detection signals gene... | 02/10/2009 |
| 7432715 | Method and apparatus for metal detection employing digital signal processing A metal detector employing digital means for the generation of highly quality reference signals used for transmission and demodulation and capable of continuously monitoring the parameters of the transmitting and receiving coils. Using the monitored signals and cali... | 10/07/2008 |
| 7414400 | Detection of ferromagnetic objects approaching a magnet An apparatus for detecting a potentially dangerous ferromagnetic object carried inadvertently by a person approaching the magnet of a magnetic resonance imaging system (14) uses the fringe field (16) of the magnet and provides guide members (11)... | 08/19/2008 |
| 7403001 | Methods and apparatus for measuring morphology of a conductive film on a substrate A method of determining a mass variation of a conductive film on a substrate with an area, an edge zone, and a center zone, is disclosed. The method includes providing a measured conductive film mass of a conductive film on a substrate. The method also includes posi... | 07/22/2008 |
| 7394243 | Proximity sensor A proximity sensor 717 comprising a combination of an arbitrarily selected one of a plurality of types of detection end modules 707, a plurality of types of output circuit modules 709 and a plurality of types of outer shell cases 711. The... | 07/01/2008 |
| 7388370 | Magnetic crash sensor At least one time-varying signal is applied to a plurality of coil elements in cooperative relationship with and spanning different portions of a vehicle. The coil elements generate an associated plurality of magnetic field components that interact with the vehicle.... | 06/17/2008 |
| 7368906 | Tool for measuring magnetic properties at high temperatures The present invention relates to a measuring tool for measuring magnetic properties of a magnetic sample in a closed loop, comprising an electromagnet in a closed loop arrangement with two pole pieces connected to a yoke, said pole pieces forming a gap for the place... | 05/06/2008 |
| 7368907 | Omni-directional electric current perturbation probe An electric current perturbation probe includes at least one driver coil and at least one receiver. The at least one driver coil produces an omni-directional magnetic field. The at least one receiver is decoupled from the omni-directional magnetic field. In one exam... | 05/06/2008 |
| 7359842 | Soft sensor device and device for evaluating the same A case base generator divides an input space of history data into unit input spaces according to a desired output allowable error, and creates a representative case from the history data arranged in the unit input spaces, thereby generating a case base. A case retri... | 04/15/2008 |
| 7355395 | Method and apparatus for eddy current-based quality inspection of dry electrode structure A system for non-destructive non-contact quality inspection of dry electrode units of energy storage includes an eddy current-based inspection system having a conveyor belt, and a hollow dielectric shell. An outer surface of the shell has a plurality of spaced apart... | 04/08/2008 |
| 7348890 | Pest control techniques A pest control system (20) includes pest control devices (110) installed about an area or building (22). These devices (110) each include a bait member and a communication circuit. The communication circuit may be in the form of a passive... | 03/25/2008 |
| 7338709 | Security yarn and production method therefor According to the present invention, there is provided a security thread whose existence is not clarified, which is prevented beforehand from being removed, which can be attached even to a form of a commodity heretofore regarded as difficult, and whose use purpose ra... | 03/04/2008 |
| 7336198 | Magnetostatic communication A system for providing communication of information by modulating a magnetostatic field with a magnetostatic transmitter that modulates said magnetostatic field to contain the information and detecting the information in the modulated field at a distance with a magn... | 02/26/2008 |
| 7323868 | System and method for temperature independent measurement of standoff distance using an eddy current sensor An embodiment of the invention generally relates to a temperature-independent method of determining an engine health parameter, namely stand-off distance, between an eddy current sensor and a conductive element. The method includes receiving a signal from the eddy c... | 01/29/2008 |
| 7319323 | Device and method using magnetic pattern on disk An embodiment of the invention relates to a device for performing NMR or ESR analysis. The device comprises a detection unit, a magnet, and a disk having a magnetic pattern. The detection unit comprises a sample holding space for holding a sample and a microcoil for... | 01/15/2008 |
| 7319319 | Sensing apparatus and method There is described a sensor comprising an excitation winding, a signal generator operable to generate an excitation signal and arranged to apply the generated excitation signal to the excitation winding, a sensor winding electromagnetically coupled to the excitation... | 01/15/2008 |
| 7302982 | Label applicator and system A label applicator including a support surface having a central area and curving downwardly from the central area. A post assembly extends up from the central area such that a label having a label through-hole can be positioned in a support position generally on the... | 12/04/2007 |
| 7296683 | Ferrous metal detector with alarm An electronic ferrous metal detector with an alarm includes a non-ferrous core positioned circumferentially about an opening in an object, such as a hole in a garbage can lid. A pick-up coil having a sufficient number of windings is wound about the non-ferrous core ... | 11/20/2007 |
| 7295004 | Eddy current probe and method of manufacture thereof An eddy current probe includes a plurality of deformable substrates each having a pair of coils wound coaxially thereabout in spaced relation and a housing supporting said plurality of substrates adjacent to each other with each substrate compressed in a direction l... | 11/13/2007 |
| 7282909 | Methods and apparatus for determining the thickness of a conductive layer on a substrate A method of determining the thickness of a conductive film is disclosed. The method employs measured voltage and current responses that have been temperature-compensated to determine the thickness of the conductive film. The temperature compensation uses a temperatu... | 10/16/2007 |
| 7281432 | Displacement sensor with an excitation coil and a detection coil To be able to detect a displacement amount of a moving object by a resolution of from micrometer to nanometer by a simple structure. An excitation coil 23 and a detection coil 25 are arranged to align and a magnetic body probe 27 in a con... | 10/16/2007 |
| 7280940 | Segmented field dielectric sensor array for material characterization The condition of insulating and semiconducting dielectric materials is assessed by a sensor array that uses electric fields to interrogate the test material. The sensor has a linear array of parallel drive conductors interconnected to form a single drive electrode a... | 10/09/2007 |
| 7260516 | Optimization of a design An apparatus, system, and method for optimization. The apparatus, system, and method include a mechanism for ending an optimization when all models within one design tolerance of an optimum model have been simulated. ... | 08/21/2007 |
| 7248041 | Device and method for measuring transient magnetic performance A device for evaluating magnetic component performance and methods of evaluating transient magnetic performance of such components are disclosed. Magnetic flux capacity and/or energy loss of a magnetic component is/are measured, and the measurement data is electroni... | 07/24/2007 |
| 7243553 | Sensor device for the examination of surfaces A sensor device for examining the surfaces of a work piece, in particular in regard to burrs, is provided wherein said device comprises a probe shaft having a detector head with at least one inductive element, wherein said at least one inductive element couples indu... | 07/17/2007 |
| 7245985 | Process and apparatus for improving and controlling the vulcanization of natural and synthetic rubber compounds A process for curing a natural or synthetic rubber compound under a plurality of curing conditions by: (1) obtaining time dependent data streams of dielectric or impedance values from a non-bridged impedance sensing circuit and a capacitor having the rubber compound... | 07/17/2007 |
| 7242012 | Lithography device for semiconductor circuit pattern generator General purpose methods for the fabrication of integrated circuits from flexible membranes formed of very thin low stress dielectric materials, such as silicon dioxide or silicon nitride, and semiconductor layers. Semiconductor devices are formed in a semiconductor ... | 07/10/2007 |
| 7241630 | Paramagnetic particle detection A method of determining the number of magnetic particles within a sample using a tuned circuit having a capacitor and a coil. The method comprises: a. determining the difference in the resonant frequency of the tuned circuit when t... | 07/10/2007 |
| 7242185 | Method and apparatus for measuring a conductive film at the edge of a substrate A method of determining a thickness at a thickness position of a conductive film on a substrate with a center zone and an edge zone is disclosed. The method includes providing a set of thickness correlation curves at a set of sensor position radii from a center of t... | 07/10/2007 |
