Abstract: An inline reed relay comprises at least one reed assembly, at least one pair of metal pins, a housing and a control pin disposed on the housing. The reed assembly comprises at least two reed switches, each having two pins. The metal pins are respectively connected to the two pins of the reed switches. One end of each metal pin extends out of the housing. The inline reed relay allows the reed switches to be integrated through the injection molded housing, and the reed switches are connected to an external circuit board via the metal pins, because the metal pins can be maintained a fixed shape and difficult to deform. The processing size and position tolerances of the inline reed relay can meet the requirements of mechanized automatic welding, thereby improving welding efficiency and production assembly efficiency and reducing labor costs.

Abstract: A lighting device including a test device for testing the proper operation of a primary and a secondary power supply alternatively providing electrical power to the light. The test device is attached to a bracket using a single fastener such as a nut and the bracket is attached to a receptacle for the light using a different single fastener, such as a pop-rivet or screw.

Abstract: A contact welding detecting device includes: a relay including a first contact for permitting and breaking transmission of a first DC input potential to a first output and a second contact for permitting and breaking transmission of a second DC input potential; a relay open/close control unit that simultaneously controls to open and close the first and second contacts when welding of at least one of the first and second contacts is detected; a first potential difference detection unit that detects a potential difference between a first point at an input side of the first contact and a second point at an output side of the second contact; and a second potential difference detection unit that detects a potential difference between a third point at an output side of the first contact and a fourth point at an input side of the second contact.

Abstract: A solenoid type switch has at least two driving coils. The driving coils turn off a switch with a current for example an overcurrent that flows in the switch. The driving coils are magnetized or demagnetized by a driving circuit so as to turn on or off the switch. The driving circuit magnetizes or demagnetizes the driving coils in accordance with a control signal supplied from a controlling circuit. Thus, the switch can be turned off with the current that flows in the driving coils.

Abstract: A high-frequency surgical device encompassing control electronics that control a power unit which utilizes a high-frequency transformer that is the only galvanic separation between the supply voltage and the patient/user unit.

Abstract: A sensor for a power distribution system includes: a conductor; a core proximate the conductor; and a reed switch adjacent the core, the reed switch in electrical communication with an electronic trip unit. A power distribution system includes: an upstream circuit breaker including an electronic trip unit; a downstream circuit breaker in electrical communication with the upstream circuit breaker; a first sensor positioned downstream from the downstream circuit breaker, the first sensor includes: a conductor in electrical communication with the downstream circuit breaker; a core located proximate the conductor; and a reed switch adjacent the core, the reed switch in electrical communication with the electronic trip unit.

Abstract: A microelectronic or microelectromechanical device, including a substrate and a carbon microfiber formed thereon, which may be employed as an electrical connector for the device or as a selectively translational component of a microelectromechanical (MEMS) device.

Abstract: A fault indicator for detecting the occurrence of a fault current in a monitored conductor and providing a light indication thereof includes a rotatably mounted indicator flag. The flag is positioned in either a reset indicating or a fault indicating state by a magnetic pole piece, which is magnetized in one magnetic direction or the other by momentary application of a current in one direction or the other to an actuator winding on the pole piece. A magnetically actuated reed switch in an auxiliary magnetic circuit comprising an auxiliary pole piece magnetized by the actuator winding and a bias magnet magnetically aligned to oppose the reset magnetic orientation and reenforce the trip magnetic orientation of the magnetic pole piece closes upon occurrence of the fault current to connect an internal lithium battery to an LED visible from the exterior of the fault indicator housing.

Abstract: A fault indicator for detecting the occurrence of a fault current in a monitored conductor and providing a contact closure and a light indication indicative thereof includes a rotatably mounted indicator flag. The flag is positioned in either a reset indicating or a fault indicating state by a four-pole magnetic pole piece, which is magnetized to an appropriate magnetic orientation by momentary application of a current to an actuator winding on the pole piece. A first magnetically actuated reed switch in an auxiliary magnetic circuit associated with a first pole of the magnetic pole piece and including the actuator winding and a first bias magnet closes upon occurrence of the fault current to connect an internal lithium battery to an LED visible from the exterior of the fault indicator housing.

Abstract: A contact resistance check circuit and method for verifying that a sufficient electrical connection is established between a source and a sense lead of a Kelvin connection. The circuit includes a microprocessor for driving a transformer that is connected to the source/sense probe (i.e., contact resistance) with an input pulse. The input pulse is altered in relation to the magnitude of the contact resistance to produce a check pulse. A comparator is used to compare the check pulse with a threshold voltage and for generating a fault indication signal. A flip flop then stores the fault indication signal so that the fault indication signal may be monitored by the microprocessor.

Abstract: 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 circuit board being tested and is connected between the pin under test and a remote testing unit. Only the switches required to contact specific nodes for a specific test are actuated, i.e. moving the subject pin's reed relay switch to a closed position, during the actual test sequence. All remaining test wires are turned off, i.e. opened, releasing the electrical connection of long test wires from each of the nodes. Alternatively, all switches can be NC and individual switches, or groups of switches, can be opened to disconnect the electrical connections of the long test wires. Additional testing is performed in a similar method by repeating the steps above for various test sequences and nodes.

Abstract: The invention relates to a reed contact unit (1) for electric switching functions, comprising a metallic contact blank (2) featuring a base (3) with at least one contact arm (5) configured integral with it, and comprising an electrically non-conducting frame part (7) accommodating fixedly the base (3) of the contact blank (2). To avoid deformations and damage to the contact arms (5) of the reed contact units (1) when used in bulk, at least one of the long sides (12) and the front end (9) of the contact arm (5) are surrounded by at least one frame shank (8) configured integral with the frame part (7), the front end (9) of the contact arms (5) being fixable releasably in the frame shank (8).

Abstract: A switching device (10) for an electrical load, particularly for an electrical toy compraising a normally open reed switch (14) and a fixed biasing magnet (15) located at a distance from the glass tube (17) of the reed switch such that the magnetic strength of the biasing magnet in the area of the reed switch has value less than required for switching on of the reed switch and greater than required for switching off of the same switch.The switch can be actuated--closed by applying to this switch an additional magnetic field the same orientation as the biasing magnetic field; the reed switch is closed and remains closed after removing the magnetic field.This switch can be deactuated--opened by applying to the switch a magnetic field with orientation opposite to the orientation of the biasing magnetic field; the reed switch is opened and remains opened after removing the magnetic field.

Abstract: A surface mountable reed switch, which is particularly useful for implantable devices such as pacemakers, defibrillators, drug pumps and neurostimulators. The switch includes reed contacts hermetically sealed within a tubular glass envelop, wherein the reed contacts extend through ends of the envelop to provide external contacts. A trilobular cross section mounting bar is attached to each external contact such that the reed switch can be mounted on a mounting surface such as a ceramic substrate or the like. A protective housing contains the reed switch while the attached trilobular bars extend from a side of the housing to allow communication between the switch and the mounting surface. Further, a testing apparatus is provided for evaluating how the housed reed switch will perform when installed in the implantable device and subjected to stray (must not operate) as well as designated (must operate) magnetic fields.

Abstract: In a semiconductor device burn-in apparatus, a film on which a plurality of TAB products, each having a semiconductor device thereon, are arranged in succession and a flexible tape-like wiring board which is situated in the same plane as, and in parallel to, the film and on which electrically conductive wiring patterns are formed are detachably clamped by sockets, in units of one of the TAB products. The film and the wiring board are electrically connected by a wiring board provided on each socket. The film, wiring board and socket are stored in a storage member as a combined structure having an elongated shape, and the combined structure is subjected to a burn-in process.

Abstract: A relay device having a relay element mounted on a circuit board, the relay element having a pair of contacts which are closed and electrically conducted by a control signal of a first level and opened by the control signal of a second level to form a contact gap; an LED for emitting light toward the contact gap; a phototransistor for receiving light from the LED, the phototransistor not receiving the light while the pair of contacts are closed, and receiving the light passing through the contact gap while the pair of contacts are opened; and a checker circuit for checking if the relay device operates normally or abnormally in accordance with the relationship between an output from the phototransistor and the level of the control signal.

Abstract: An electrostatic discharge testing device employs magnetic reed relays in a switching array for selectively routing high-voltage, fast rise-time signals. The contacts of the reed relays are copper plated to minimize skin effect and thus decrease rise-time. Interposed between the glass enclosure and the magnetic coil of each reed relay is a metal-plated dielectric sheet formed in a tube with the plated side facing out. The plating at each end of the tube is connected to a ground reference voltage via a resistor.