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| Number | Title | Issue Date |
| 7417543 | Method and system for monitoring containers to maintain the security thereof A method and system for monitoring the integrity of a container specifically adapted for the system and constructed with at least one door. A sensor is secured in the container for detecting proximity of the at least one door relative to another area of the containe... | 08/26/2008 |
| 7338029 | Compact solenoid A compact solenoid including a coil and a frame located outside the coil for constituting a magnetic circuit. The frame includes four bars extending in parallel to the axial direction of the coil and located proximate to the outer circumferential face of the coil. E... | 03/04/2008 |
| 7323959 | Trackball device A trackball device of the present invention includes an operating ball, multiple rollers which rotate by contacting the ball while it is rotated, multipole permanent magnets which co-rotate with these rollers, and a reed switch disposed in a position where it turns ... | 01/29/2008 |
| 7321282 | MEM's reed switch array A MEM's reed switch array is provided having a first switch having a sensitivity causing the first switch to open or close due to a magnetic flux, and a second switch of lesser sensitivity than the first switch causing the second switch to open or close due to a mag... | 01/22/2008 |
| 7317368 | Reed relay, removable bushing thereof, and reed relay mounting method therefor A reed relay which comprises a reed switch with reeds at both ends; an electrostatic shield pipe inside which the reed switch passes; a coil bobbin having a hollow part in which the electrostatic shield pipe is disposed; removable bushings attached to the electrosta... | 01/08/2008 |
| 7280017 | Secure magnetic sensor A secure magnetic sensor has a first magnetic switch activatable by a first magnetic field and a second magnetic switch activatable by a second magnetic field which is stronger than the first magnetic field. The first magnetic switch is electrically connected in ser... | 10/09/2007 |
| 7009486 | Low noise power transformer A printed circuit board transformer has primary and secondary windings. The transformer includes a printed circuit board having a plurality of traces forming a plurality of first portions of the primary and secondary windings, an annular magnetic core adjacent to th... | 03/07/2006 |
| 6977570 | Reed switch apparatus A reed switch apparatus utilizes one or more reed switches to communicate with one or more devices. In one configuration, the reed switch apparatus utilizes a single magnetic field to simultaneously activate two or more reed switches. In another configuration, two o... | 12/20/2005 |
| 6954126 | Lead-less surface mount reed relay A reed relay or reed sensor device that is substantially lead-less and has minimal inductance can be manufactured as an individual unit or as a plurality of units. The reed relay or reed sensor device comprises a substrate that has a plurality contacts on the exteri... | 10/11/2005 |
| 6429758 | Miniature electromechanical switch The present invention is an RF electromechanical single pole single throw (SPST) switch providing a low loss path for RF signals in closed position and a high impedance path for RF signals in open position. The structure has two reed switches each having ... | 08/06/2002 |
| 6340924 | Repeatedly usable high-operating-speed circuit protection device using reed members The present invention provides a circuit protection device that comprises at least one set of reed members having a pair of reed members, wherein each of the reed members is constituted by a magnetic material and disposed in such a way as to be opposed to... | 01/22/2002 |
| 6272734 | Process for manufacturing an electromagnetic relay The relay is formed from two half-shells which are formed by extrusion coating the functional elements with plastic. A first half-shell is formed by extrusion coating a coil with a U-shaped core, while a second half-shell is formed by extrusion coating a ... | 08/14/2001 |
| 6266867 | Method of making a relay A method of manufacturing a relay wherein the relay has a coil body that is formed by plastic injection molding. The method further includes the step of embedding into the coil body injection mold a contact spring terminal pin and a number of fixed contac... | 07/31/2001 |
| 6262647 | Magnetic reed switching array A plurality of magnetic reed switches are arranged in a plurality of rows and columns. Mounted above the plane of the reed switches but in close proximity thereto is an electromagnet. Stepping motors are capable of moving the electromagnet so as to overly... | 07/17/2001 |
| 6064001 | High current electrical switching apparatus with poles interleaved and modules joined by interference fit of joining block in undercut grooves in molded casings Two molded case electrical switches such as circuit breakers, network protectors, disconnect switches and transfer switches, are secured together side-by-side by joining blocks having tongues extending along their sidewalls which engage undercutting groov... | 05/16/2000 |
| 6025768 | Electromechanical switching device package with controlled impedance environment A reed switch package is disclosed that includes a reed switch with at least one electrical signal path. A cylindrical ground shield is provided about the reed switch. Ground terminals are connected to opposing sides of the ground shield so that the groun... | 02/15/2000 |
| 5933019 | Circuit board testing switch An electro-mechanical reed relay in-circuit test fixture switch is inserted onto a wrapped wire pin extending from the bottom of a socket holding a spring-loaded nail inside a bed-of-nails or equivalent testing fixture. The switch is located at the circui... | 08/03/1999 |
| 5903202 | Reed relay and method for fabrication thereof A reed relay comprising a reed switch having a pair of leads and a magnetic coil assembly for driving the reed switch, the magnetic coil assembly being composed of a magnetic coil wound around a cylindrical bobbin having an insulating flange at each end o... | 05/11/1999 |
| 4547756 | Multiple reed switch module A multiple reed switch module includes multiple reed switches aligned in fixed, spacial relation by thermoplastic side rails attached to the switch leads, with lead ends extending perpendicularly from the leads in parallel relation. The side rails functio... | 10/15/1985 |
| 4412267 | Time-delay current sensing circuit breaker relay A circuit control device combining the functions of a current sensor, a time delay circuit, an undervoltage sensor, and a lockout such that, once tripped, the device must be reset intentionally. The current sensor includes a coil (16a) surrounding two ree... | 10/25/1983 |
| 4389627 | Changeover switch for actuating a plurality of reed switches disposed in a circle A changeover switch comprising first and second substrates assembled in spaced relation to each other, a plurality of reed switches disposed in a circle having predetermined angular intervals on the substrates, a permanent magnet pivotally mounted on a re... | 06/21/1983 |
| 4330770 | Magnetically controlled switching device A magnetically controlled switching device having a magnetic shunt plate with many terminals arrayed along the peripheral portions thereof, a plurality of coil forms located at the crosspoints of a matrix consisting of X and Y coordinates on a plane surro... | 05/18/1982 |
| 4284904 | Encapsulated magnetically sensitive circuit elements for depth-indicating purposes or the like The invention contemplates a unitary magnetically sensitive circuit element or network and a flexibly articulatable elongate assembly of a plurality of such elements or networks, with electrical interconnection of the same, such assembly being inherently ... | 08/18/1981 |
| 4240054 | Arrangement for locking a reed capsule within a magnetic latching reed switch assembly An arrangement for locking a reed capsule within a tubular bobbin of a reed switch assembly comprising, a deflectable tab located adjacent a slot formed by two upstanding arms. The tab is disposed to deflect inward when a wire return strap connected to a ... | 12/16/1980 |
| 4232281 | In-line package relay A reed relay wherein the coil and switch terminals are disposed generally in planes parallel to the axis of the relay. A bobbin is molded onto a switch consisting of glass-enclosed contacts with leads projecting therefrom. Coil terminals are molded integr... | 11/04/1980 |
| 4228412 | Electrical switching apparatus and energizing circuits therefor A scanner unit on a double-sided printed circuit board has reed switches on one face and coils on the other. The copper patterns include large screening pads beneath the reed switches and the coils. These pads distribute heat evenly along the switches to ... | 10/14/1980 |
| 4224588 | Electric relay having multiple operational thresholds Electric relay comprising flexible-blade switches having multiple operational thresholds. In this relay, the most sensitive switches are within the coil whereas the least sensitive switches are located outside the coil, the magnetic circuit being directed... | 09/23/1980 |
| 4206432 | Electromagnetic relay The invention relates to a micro relay intended for use in printed circuits provided with two switching-over contacts. The contacts are arranged in the core of the coil, each of the contacts being provided with its own armature fixed on the switching-over... | 06/03/1980 |
| 4160223 | Plural reed switches having an integral, interconnecting web Reed switches, contact sections of the reed of which bear with a predetermined positive force against inside surfaces of an elongated envelope, are made by forming combs, each including a header web and, integral with the web and projecting therefrom, a p... | 07/03/1979 |
| 4156218 | Retaining means for securing a biasing magnet in a reed relay switching assembly A molded plastic retainer for securing a permanent biasing magnet in position inside the core of a multi-capsule reed relay assembly, wherein the retainer secures the magnet by an interference fit between the magnet and an inner core wall. The retainer in... | 05/22/1979 |
| 4149213 | Two wire multiple switching system A two wire switching system is intended for use in a hostile environment such as a nuclear reactor where temperatures are in excess of 250° or 300° C. and where the use of a switch with a permanent magnet component or a component intended to have remane... | 04/10/1979 |
| 4135136 | Electromagnetic switch matrix device An improvement in an electromagnetic switch matrix permits the simultaneous closing of a plurality of cross-points either in the same row or in the same column without causing the erroneous operation of nonselected cross-points. The switch matrix is of th... | 01/16/1979 |
| 4084142 | Reed relay having low differential thermal EMF A reed relay of the type having a pair of parallel reed switches aligned so that opposite ends of one switch are adjacent opposite ends of the other switch, the adjacent ends of said switches being in thermally conductive but electrically insulated relati... | 04/11/1978 |
| 4075433 | Signal switching device Signal switching devices employing electromagnetic switching elements having particular application in the switching network of automatic telephone exchanges are disclosed. The switching devices are of the kind comprising an input and output signal line e... | 02/21/1978 |
| 4071840 | Switching device for reed relays in a matrix A matrix arrangement is disclosed of bistable, magnetically latched reed relays. Each matrix multiple includes a selection unit comprising a generator for transmitting successive pulses of opposite polarity which switch the relays on that multiple to a fi... | 01/31/1978 |
| 4063205 | Printed wiring card mountable reed relay An improved magnetic latching reed relay construction includes a hollow bobbin having an integrally formed flange and a base portion on each end. The bobbin is formed in one piece from a thermoplastic material. At least one reed switch is disposed within ... | 12/13/1977 |
| 4035773 | Control of leakage currents in a switching matrix A switching matrix arrangement using magnetic latching reed relays is disclosed, wherein similarly numbered switch groups and verticals are connected in common and are driven simultaneously with the exception of a grid select signal which is unique to a p... | 07/12/1977 |
| 3993970 | Coaxial cable switch A coaxial cable switch comprising a plurality of sealed reed, magnetically responsive switches serially connected in alternating directions which switches act as the inner signal path of a coaxial conductor. The outer coaxial conductor consists of a coppe... | 11/23/1976 |
| 3982216 | Electromagnetic coordinate switching device A divisional excitation type coordinate switching device featuring a single magnetic shunt plate and preformed elongate excitation coils arranged on the top and bottom sides thereof and each surrounding a row or column of switching elements. Terminal bloc... | 09/21/1976 |
| 3944956 | Magnetically controlled switching matrix A magnetically controlled switching matrix is composed of magnetic members each having two coils placed thereon and connected into respective row and column energizing circuits, and comprises a generator of decaying alternating current pulses electrically... | 03/16/1976 |
