Class 324/419 - Reed switch

Subclass of Class 324 - Electricity: measuring and testing
Definition: Subject matter in which the relay to be tested is of the
No. of patents: 24
Last issue date: 10/14/2008

Number	Title	Issue Date
7436644	Switching circuit, switching method, protective device and battery pack 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. T...	10/14/2008
7242196	Power supply controller apparatus for detecting welding of contactors A power supply controller apparatus is provided for use in a power supply apparatus including a battery assembly. The power supply controller apparatus includes a controller that controls supplying power to a load from said battery assembly through a capacitor conne...	07/10/2007
7208955	Power relay or switch contact tester Embodiments of the invention include a test circuit having an auxiliary low power test signal generator, filters, and a detector to test a power switch. The generator sends an auxiliary low power test signal having a different frequency than a power signal for the s...	04/24/2007
7117737	Sealed index cover for meter A flow meter having an index cover adapted to house an index of the meter seals to the remainder of the meter with an elastomeric ring seal received between the index cover and the meter body. The ring seal defines a plurality of lines substantially parallel to the ...	10/10/2006
7064564	Bundled probe apparatus for multiple terminal contacting A probe apparatus having probe groups comprising two or three probes that independently contact single terminals of tested chips. As a result, the probe apparatus is capable of recognizing voltage drops of a test signal applied prior to the chip testing onto a test ...	06/20/2006
7016511	Remote magnetic activation of hearing devices A magnetic switch assembly for hearing devices designed for remote activation by the user is highly miniaturized with a self-contained latching mechanism. The switch is activated and deactivated by the user via a hand-held magnet placed in proximity to the hearing d...	03/21/2006
6979244	Method of manufacturing an electronic device containing a carbon nanotube A method of manufacturing an electronic device in which a substrate with a pair of electrodes is provided and a carbon nanotube is formed or arranged to electrically connect the electrodes. ...	12/27/2005
6940285	Method and apparatus for testing a micro electromechanical device A system and method for testing performance characteristics of a MEMs device includes an activation driver configured to receive and drive a waveform to an activation side of the micro electromechanical device and configured to provide readback of an activation volt...	09/06/2005
6864686	High-frequency surgical device and operation monitoring device for a high-frequency surgical device 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. ...	03/08/2005
6737869	Fault locator and selectivity sensor 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 b...	05/18/2004
6445006	Microelectronic and microelectromechanical devices comprising carbon nanotube components, and methods of making same 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...	09/03/2002
6433698	Fault indicator providing light indication on fault detection 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 stat...	08/13/2002
6016105	Fault indicator providing contact closure and light indication on fault detection 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 indi...	01/18/2000
5999002	Contact check for remote sensed measurement 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 ...	12/07/1999
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
5917398	Reed contact unit for an electric switch 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 fr...	06/29/1999
5811896	Switching device 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 streng...	09/22/1998
5796254	Reed switch having trilubular bars for surface mounting 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 re...	08/18/1998
5502398	Semiconductor device burn-in apparatus 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 ...	03/26/1996
5134375	Relay checking device 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 con...	07/28/1992
4935839	Electrostatic discharge testing device 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...	06/19/1990
4092586	Temperature-sensing circuit A temperature-responsive circuit comprising an ECTS reed switch and an interrogation means for determining the operability and accuracy of the temperature-responsive portion of the circuit....	05/30/1978
4031460	Device for measuring the magnetic flux distribution along the length of elongated magnetized element An apparatus designed for measuring the magnetic flux distribution along magnetizable members, specifically, magnetically latching reed capsules, which apparatus is characterized by an elongate thrust arm, in tubular form, which is mounted to reciprocate ...	06/21/1977
4028615	Method of and device for testing hermetically enclosed reed contacts Method of and apparatus for testing magnetostrictive reed contacts for poorly conductive surface contamination. The reed contact is closed in a magnetic field generated by a direct current. An alternating current is conducted through the closed reed conta...	06/07/1977

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Class 324/419 - Reed switch