41 |
Accelerometer |
JP5483989 |
1989-03-07 |
JPH0293371A |
1990-04-04 |
REONAADO UEENAA BEERU |
PURPOSE: To eliminate the need for a high precision working member and to allow easier operation inspection by controlling a switch by moving a detection ball which is attracted by a fixed magnetism permeable member while, in response to an acceleration larger than the attracting force, subjecting to a magnetic attenuation force.
CONSTITUTION: A detection bell 70 is attracted by a fixed magnetism permeable washer 30 to a housing 12 of a cylinder part. The bell 70 is displaced, in response to an acceleration larger than the attracting force, being subject to magnetic attenuation force through electric coils 80 and 82 of conductive rings 32 and 34, and through the first terminal 62, a switch 96 is closed so that an acceleration above a threshold value is detected. With such configuration as using magnetism instead of gas for attenuation, no gasket is required, in addition, high precision work for a detection bell's outer diameter, housing's inner diameter, etc., is not required, and an operation inspection is easily performed accompanied by no such inconvenience as operation inspection cannot be performed without a sealed-in gas, etc.
COPYRIGHT: (C)1990,JPO |
42 |
Embedded pole and method of assembling same |
US15437945 |
2017-02-21 |
US10147572B2 |
2018-12-04 |
Bin Huo; Wenhua Que; Xuewei Sun; Lijuan Kong; Xian Yang |
An embedded pole is provided which includes a conductive path and a movable contact. The movable contact is selectively movable between a first position in which the conductive path is closed and a second position in which the conductive path is open. An insulation element is coupled to and selectively movable in conjunction with the movable contact. The embedded pole further includes a sensor coupled to the insulation element and operable to detect a displacement of the insulation element that corresponds to a movement of the movable contact between the first position and the second position. |
43 |
Electrical switching apparatus and sensing assembly therefor |
US15290008 |
2016-10-11 |
US09953790B1 |
2018-04-24 |
Theodore James Miller; James I Wise; Sunnybhai Patel |
A sensing assembly is for an electrical switching apparatus. The electrical switching apparatus includes a base having a pocket portion, and a bus bar coupled to the base. The sensing assembly includes a housing structured to be coupled to the pocket portion, a power harvester coupled to the housing, a current sensor coupled to the housing, and a voltage sensing circuit located internal with respect to the housing and being structured to be electrically connected to the bus bar. |
44 |
CIRCUIT BREAKER CHARACTERISTIC MONITORING DEVICE |
US15507634 |
2014-09-02 |
US20170287666A1 |
2017-10-05 |
Shuichi TANIGAKI; Tomohito MORI; Aya YAMAMOTO |
A circuit breaker characteristic monitoring device monitors the operation of a circuit breaker to estimate the amount of consumption of a movable contact and fixed contacts included in the circuit breaker. The device includes an operating time measurement unit to measure at least one of closing time, which is the time required for the circuit breaker to be closed after starting a closing operation, and opening time, which is the time required for the circuit breaker to be open after starting an opening operation, and a contact consumption amount estimation unit to estimate the amount of consumption of the movable contact and the fixed contacts on the basis of the result of measurement performed by the operating time measurement unit and travel speed of the movable contact during the closing operation or the opening operation for which the measurement result is obtained. |
45 |
EMBEDDED POLE AND METHOD OF ASSEMBLING SAME |
US15437945 |
2017-02-21 |
US20170263401A1 |
2017-09-14 |
Bin HUO; Wenhua QUE; Xuewei SUN; Lijuan KONG; Xian YANG |
An embedded pole is provided which includes a conductive path and a movable contact. The movable contact is selectively movable between a first position in which the conductive path is closed and a second position in which the conductive path is open. An insulation element is coupled to and selectively movable in conjunction with the movable contact. The embedded pole further includes a sensor coupled to the insulation element and operable to detect a displacement of the insulation element that corresponds to a movement of the movable contact between the first position and the second position. |
46 |
Relay including processor providing control and/or monitoring |
US14375985 |
2013-01-09 |
US09711309B2 |
2017-07-18 |
James M. McCormick; Patrick W. Mills; Steven C. Schmalz |
A relay includes a first terminal, a second terminal, a third terminal, a fourth terminal, separable contacts electrically connected between the first and second terminals, an actuator coil comprising a first winding and a second winding, the first winding electrically connected between the third and fourth terminals, the second winding electrically connected between the third and fourth terminals, a processor, an output, a first voltage sensing circuit cooperating with the processor to determine a first voltage between the first and second terminals, and a second voltage sensing circuit cooperating with the processor to determine a second voltage between the third and fourth terminals. The processor determines that the separable contacts are closed when the first voltage does not exceed a first predetermined value and the second voltage exceeds a second predetermined value and responsively outputs a corresponding status to the output. |
47 |
SELF-TESTING AUTO MONITOR GROUND FAULT CIRCUIT INTERRUPTER (GFCI) WITH POWER DENIAL |
US15415086 |
2017-01-25 |
US20170155240A1 |
2017-06-01 |
Thomas James Batko; Joseph Vincent DeBartolo |
A circuit interrupting device including one or more line terminals for connecting to an external power supply, one or more load terminals for connecting to an external load, an interrupting device, a fault detection circuit, and an auto-monitoring circuit. When the auto-monitoring circuit determines that the circuit interrupting device has reached its end-of-life, and it is determined that contacts of said interrupting device have not failed, then a signal is driven to a first level to actuate a switch and open the contacts. Additionally, said signal may further be driven to a second level to inhibit said circuit interrupting device from resetting when it is determined that contacts of said interrupting device have failed. |
48 |
Apparatus and method for sectioning the phase conductors of an electric power distribution network |
US14273062 |
2014-05-08 |
US09659730B2 |
2017-05-23 |
Vacirca Leandro |
The invention relates to an apparatus (50) for sectioning the phase conductors (L1, L2, L3) of a multi-phase electric power distribution network (NET) comprising a plurality of disconnectors (1, 2, 3), each disconnector being operatively associated to a related said phase conductor and comprising switching means (S) for sectioning a related phase conductor and a control unit (CU) that is capable of controlling said switching means and is capable of wireless communicating with remote devices. The control units of said disconnectors (1, 2, 3) execute different managing procedure depending on the operating status of said electric power distribution network. In a further aspect, the invention relates to a control system for executing the above described method. |
49 |
Relay welding detector, relay equipment incorporating the same, and relay welding detecting method |
US14141656 |
2013-12-27 |
US09581648B2 |
2017-02-28 |
Zhi-Feng Wu |
A relay welding detector is adapted for detecting welding fault of a relay. The relay has a first electrical contact coupled to a neutral terminal of an alternating current (AC) power source through a first power line, and a second electrical contact coupled to a load through a second power line. The relay welding detector includes a signal generator generating a test signal, a current transformer wound with a portion of one of the power lines and generating an induced signal based on the test signal, and a determining unit determining, based on the induced signal, whether the electrical contacts of the relay are welded to each other. |
50 |
COMPONENT MONITORING SYSTEM WITH MONITORY LATCH ASSEMBLY |
US14825232 |
2015-08-13 |
US20170047186A1 |
2017-02-16 |
Jiong Chen; Li Yu; Fangji Wu; Binhui Mao; Steven Zhenghong Chen; Jingxuan Liu |
A monitoring latch assembly structured to monitor circuit breaker assembly operating mechanism component characteristics is provided. The monitoring latch assembly includes a latch member and a sensor assembly. The latch member includes a body. The latch member body defines a pocket. The sensor assembly is disposed in the latch member body pocket. |
51 |
Remote switch contact quality maintenance |
US14287692 |
2014-05-27 |
US09466444B2 |
2016-10-11 |
John A. Dickey |
A system for maintaining integrity of a switch contact includes a first resistor-capacitor circuit, a second resistor-capacitor circuit, and a control switch. The first resistor-capacitor circuit is connected to an output of the switch contact and includes a first resistor and a first capacitor. Upon closing of the switch contact, a first wetting current flows through the switch contact. The second resistor-capacitor circuit includes a second resistor and a second capacitor. The control switch is connected between the output of the switch contact and the second resistor-capacitor circuit and is selectively closable to generate a second wetting current through the switch contact. The control switch may be operated as needed to maintain the integrity of the mechanical switch contact. |
52 |
Systems and methods for remote testing of a flow switch |
US14165018 |
2014-01-27 |
US09435682B2 |
2016-09-06 |
David L. Royse; Richard L. Ulrich; Bruce LaRue; Timothy Decker |
Systems and methods for the remote testing of a paddle-type flow detector, such as are common in fire protection systems. Specifically, the systems and methods provide for mechanical movement of the vane to test activation of the flow detector under a flow condition, and which measure the amount of time the vane takes to return to the ready position to verify the presence of a paddle on the vane. |
53 |
SELF-TESTING AUTO MONITOR GROUND FAULT CIRCUIT INTERRUPTER (GFCI) WITH
POWER DENIAL |
US14203610 |
2014-03-11 |
US20140347768A1 |
2014-11-27 |
Thomas James Batko; Joseph Vincent DeBartolo |
A self-testing fault detector having a line side and a load side and a conductive path there between is provided. The self-testing fault detector includes an auto-monitoring circuit electrically coupled to a fault detection circuit and an interrupting device and it continuously monitors one or more signals to determine an operating state of the fault detector. At least one of the monitored signals includes a fault detection signal, wherein if said automonitoring circuit determines that the fault detection circuit is not properly driving the interrupting device, the automonitoring device converts an input-output port receiving the fault detection signal from an input to an output and drives the interrupting device into a tripped condition using the input-output port. |
54 |
APPARATUS AND METHOD FOR SECTIONING THE PHASE CONDUCTORS OF AN ELECTRIC POWER DISTRIBUTION NETWORK |
US14273062 |
2014-05-08 |
US20140334057A1 |
2014-11-13 |
Vacirca Leandro |
The invention relates to an apparatus (50) for sectioning the phase conductors (L1, L2, L3) of a multi-phase electric power distribution network (NET) comprising a plurality of disconnectors (1, 2, 3), each disconnector being operatively associated to a related said phase conductor and comprising switching means (S) for sectioning a related phase conductor and a control unit (CU) that is capable of controlling said switching means and is capable of wireless communicating with remote devices. The control units of said disconnectors (1, 2, 3) execute different managing procedure depending on the operating status of said electric power distribution network. In a further aspect, the invention relates to a control system for executing the above described method. |
55 |
Systems and Methods for Remote Testing of a Flow Switch |
US14165018 |
2014-01-27 |
US20140137627A1 |
2014-05-22 |
David L. Royse; Richard L. Ulrich; Bruce LaRue; Timothy Decker |
Systems and methods for the remote testing of a paddle-type flow detector, such as are common in fire protection systems. Specifically, the systems and methods provide for mechanical movement of the vane to test activation of the flow detector under a flow condition, and which measure the amount of time the vane takes to return to the ready position to verify the presence of a paddle on the vane. |
56 |
Switching device |
US10587360 |
2005-02-02 |
US07368676B2 |
2008-05-06 |
Harri Mattlar; Aki Suutarinen; Rainer Kolmonen |
A switching device having a frame, in which an actuator adapted to rotate a main shaft of the switching device and rotatable around an axis of rotation, the actuator having a 0 position, an I position and a first dead point between the 0 position and the I position, the I position being located by a given angle (α6) in a first direction relative to the 0 position. The actuator also has a testing position, the testing position being located by a predetermined angle (β6) in a second direction relative to the 0 position, the second direction being opposite relative to the first direction. |
57 |
Force measurement of bimetallic thermal disc |
US10656039 |
2003-09-04 |
US07024940B2 |
2006-04-11 |
George D. Davis; Robert F. Jordan |
An apparatus and method for determining the actuation energy generated by a bimetallic actuator during transit between first and second states of stability. The apparatus and method further determining the threshold or set-point temperature of the bimetallic actuator during transit between bi-stable states. Accordingly, the apparatus and method directly measure both the snap force F and the set-point temperature of the bimetallic actuator during transit. |
58 |
Force measurement of bimetallic thermal disc |
US10656026 |
2003-09-04 |
US06874368B2 |
2005-04-05 |
George D. Davis; Robert F. Jordan |
An apparatus and method for determining the actuation energy generated by a bimetallic actuator during transit between first and second states of stability. The apparatus and method further determining the threshold or set-point temperature of the bimetallic actuator during transit between bi-stable states. Accordingly, the apparatus and method directly measure both the snap force F and the set-point temperature of the bimetallic actuator during transit. |
59 |
Thermal switch containing preflight test feature and fault location detection |
US10646293 |
2003-08-22 |
US20040047100A1 |
2004-03-11 |
George
D.
Davis; Byron
G.
Scott |
An integral resistance element combined with a snap-action thermal switch and coupled to an output thereof, the snap-action thermal switch being structured in a normally-open configuration. The resistance element and the snap-action thermal switch share one or more common terminals. The snap-action thermal switch is structured having a pair of terminals being mutually electrically isolated when the snap-action thermal switch structured in the normally open configuration, and the integral resistance element is electrically coupled to provide an output on the pair of electrically isolated terminals. |
60 |
Force measurement of bimetallic thermal disc |
US10656026 |
2003-09-04 |
US20040045361A1 |
2004-03-11 |
George
D.
Davis; Robert
F.
Jordan |
An apparatus and method for determining the actuation energy generated by a bimetallic actuator during transit between first and second states of stability. The apparatus and method further determining the threshold or set-point temperature of the bimetallic actuator during transit between bi-stable states. Accordingly, the apparatus and method directly measure both the snap force F and the set-point temperature of the bimetallic actuator during transit. |