子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Saturable transformer device | US70023446 | 1946-09-30 | US2678419A | 1954-05-11 | ALFRED BENNETT |
| 42 | Magnetic amplifier | US3893548 | 1948-07-15 | US2552952A | 1951-05-15 | PAUL GACHET; DE MONTGREMIER PAUL JOSEPH AUG |
| 43 | Earth inductor compass | US27771039 | 1939-06-06 | US2241499A | 1941-05-13 | GUSTAV BARTH |
| 44 | Apparatus for amplifying alternating or pulsating electric currents | US31818840 | 1940-02-09 | US2222049A | 1940-11-19 | ARTHUR STEVENS SYDNEY; BENNETT WALKER ALEC HERVEY |
| 45 | Direction indicating means | US21191238 | 1938-06-04 | US2204292A | 1940-06-11 | GUSTAV BARTH |
| 46 | Magnetic device | US9692736 | 1936-08-20 | US2108642A | 1938-02-15 | BOARDMAN EDWARD M |
| 47 | Direction responsive system | US57840631 | 1931-12-01 | US2016977A | 1935-10-08 | THOMAS HENRY P |
| 48 | System and apparatus employing the hall effect | US12139426 | 1926-07-09 | US1822129A | 1931-09-08 | HUNT CRAIG PALMER |
| 49 | System and apparatus employing the hall effect | US33254429 | 1929-01-14 | US1778796A | 1930-10-21 | HUNT CRAIG PALMER |
| 50 | Telephonic device. | US1914819256 | 1914-02-17 | US1159603A | 1915-11-09 | SHREEVE HERBERT EDWARD |
| 51 | Signal absorption induction circuit | US12180539 | 2008-07-27 | US08164157B2 | 2012-04-24 | David Robert Morgan |
| This patent pertains to a new technique of increasing the amount of energy absorbed by an antenna. It accomplishes this by broadcasting a spike that attracts the signal when the fields of its oscillating charge are at their strongest. | ||||||
| 52 | Wireless patient monitoring system | US11205792 | 2005-08-17 | US20060235281A1 | 2006-10-19 | Mark Tuccillo |
| A wireless patient monitoring system. In one embodiment the system has a first patient monitoring subsystem including a plurality of sensors and sensor modules; and a processor-transceiver in communication with the plurality of sensors and sensor modules; and a first clinician display subsystem including a processor-transceiver. The processor-transceiver of the first clinician display subsystem broadcasts, on a first predetermined frequency, the frequency the processor-transceiver of the first clinician display subsystem will use to communicate with the processor-transceiver of the first patient monitoring subsystem. The processor-transceiver of the first patient monitoring subsystem then transmits and receives data on the frequency that the processor-transceiver of the first clinician display subsystem will use to communicate with the processor-transceiver of the first patient monitoring subsystem. The processor-transceiver of the first patient monitoring subsystem reverts to the first frequency if communication with the processor-transceiver of the first clinician display subsystem is lost. | ||||||
| 53 | Magnetic amplifying apparatus | US160202 | 1980-06-17 | US4377758A | 1983-03-22 | Hisakatsu Kiwaki |
| In an apparatus having a saturable magnetic core, a control winding wound on the magnetic core and supplied with a D.C. voltage in accordance with a desired phase angle, and an output winding wound on the magnetic core and supplied with an A.C. voltage through a load resistor, whereby the firing phase of a thyristor is controlled by a voltage across the load resistor, an additional winding is wound on the saturable magnetic core to detect the saturation of the saturable magnetic core by a rapid drop of a voltage across the additional winding. When the saturation is detected, the magnitude of the A.C. voltage applied to the output winding is increased. The phase angle characteristic of the magnetic phase shifter is determined under a low voltage condition prior to the saturation of the magnetic core, and after the saturation a high voltage is applied to the load resistor. | ||||||
| 54 | Dual core magnetic amplifier sensor | US970766 | 1978-12-18 | US4266190A | 1981-05-05 | Kenneth Lipman |
| A magnetic amplifier sensor for measuring the magnitude and polarity of a DC current flowing in a line includes a pair of saturable cores, each having a primary and secondary winding mounted thereon. The primary coils are connected in series and a portion of the DC current component to be measured is diverted to a shunt circuit which includes the primary windings. The secondary coils are connected to a push/pull type of AC source so that the flux levels in the cores operate in a drive/reset mode. A DC current in the primary winding causes a variation in the absolute magnitude of the flux levels of the two cores as a function of the time constant of the shunt circuit so that during the drive interval one core saturates before the other. After rectifying, a differential signal is formed which when integrated provides an output signal whose magnitude is indicative of the magnitude DC component of current in the shunt circuit and where polarity is indicative of the polarity of the DC component of current in the shunt circuit. A second embodiment of a magnetic amplifier sensor includes an additional winding on each of the saturable cores. A portion of the output signal is fed back to the two additional windings, which are connected in series, to provide the negative feedback for improving overall input-to-output linearity, and also for enhancing the response time of the amplifier sensor. | ||||||
| 55 | Magnetic amplifier having a co-axial winding | US750304 | 1976-12-13 | US4092607A | 1978-05-30 | William Harold Robins |
| A magnetic amplifier having a magnetic core in the shape of a hollow cylinder is provided with a gate winding comprising series-connected coaxial conductors passing through the center of the hollow core. | ||||||
| 56 | Integrated low-level magnetic decoder | US3676869D | 1971-02-02 | US3676869A | 1972-07-11 | LAZZARI JEAN-PIERRE; MELNICK IGOR |
| The decoder comprises a magnetic circuit in the form of a closed loop consisting of two parallel components which are formed of identical magnetic material having the same thickness and are joined together at their extremities, a primary winding and a secondary winding each housed within the interior and at one end of the loop, a control winding located between the primary and secondary windings and passed through the center of each component along the axis of easy magnetization of the magnetic circuit, the space formed within the interior of the loop being filled with insulating material.
|
||||||
| 57 | Magnetic control device | US3643104D | 1970-01-06 | US3643104A | 1972-02-15 | BAYCURA ORESTES M |
| A magnetic control device comprising a magnetic structure having four openings forming an approximately square configuration. An input winding and an output winding are both coupled with the pair of openings along one diagonal of the square and a control winding is coupled with the pair of openings along the other diagonal of the square. An AC control signal, that is synchronized with an AC input signal, saturates the area around each of its associated openings which restricts the flux path available to the flux induced by the input signal. Varying the amplitude of the control signal varies the volume that flux induced by the input signal may occupy and therefore varies the current induced into the output winding. Other embodiments include NOR and NAND logic circuits that are derived from this basic magnetic control device.
|
||||||
| 58 | Adjustable inductive apparatus | US3437969D | 1967-11-16 | US3437969A | 1969-04-08 | PFANZELT JOSEF |
| 59 | Magnetic amplifier | US34220664 | 1964-02-03 | US3408583A | 1968-10-29 | PIETER BREEDVELD MARINUS; MARIA HUYBEN CORNELIS JOSEPHUS |
| 60 | Transverse magnetic amplifier | US49490355 | 1955-03-17 | US2987667A | 1961-06-06 | LIPKIN DANIEL M |
QQ群二维码
意见反馈
意见反馈