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7714691 |
Versatile system for a locking electro-thermal actuated MEMS switch
A lockable MEMS switching architecture provided having a clutch assembly, a switching member, and an actuator. The clutch assembly has one or more engagement features located in proximity to the...
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6737952 |
Combined pressure responsive electrical switch and temperature sensor device
A combined pressure responsive electrical switch and temperature sensor device (10, 10′) is shown comprising a base member (12) mounting an electrical switch actuatable by a pressure responsive s...
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6617954 |
Tamper resistant temperature controller for a gas-fired heating device
A device for preventing the inadvertent rotation of a temperature selection dial associated with the temperature controller of a water heater. The device includes a spring-loaded prong that extends...
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6252488 |
Metal oxide varistors having thermal protection
A layer of thermal fusible material is placed on one surface of a metal oxide varistor (MOV) to monitor the heating of the MOV due to applied voltage spikes. The thermal fusible material is part of...
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6210036 |
Connector thermal sensor
An aircraft ground connector is described for delivering electrical power to aircraft parked at airports. The connector includes a thermal sensor arrangement which is positioned in the normal...
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5844463 |
Process and device for regulating the temperature of a fluid
The present invention relates to a process for regulating the temperature of a fluid circuit comprising a thermostatic valve, which consists in maintaining a leak rate through the valve once the...
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5539370 |
Inductive motor protective circuit breaker
A molded case circuit breaker and current suppressing unit protects an electric motor without tripping during motor current reversal. Upon the occurrence of a short circuit within the protected...
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5199789 |
Immersion well assembly
An immersion well assembly for a fluid vessel, such as a boiler, hot water heater or piping system, having an existing threaded opening. A preexisting well housing a mechanical temperature sensor,...
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5121094 |
Dual condition responsive switch apparatus
An electric switch is shown which is responsive separately to two different conditions, i.e. temperature and pressure. The switch includes a temperature sensing disc and a pressure sensing disc...
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5109210 |
Thermal relay with remote controlled resetting and testing junctions
A thermal relay is disclosed which can be remotely re-set and/or tripped by means of remote control electromagnets.The case of the relay has second fixing means adapted to receive first fixing...
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4998085 |
Front surface grid for thermostat subbase
A thermostat subbase has a conductive grid located on a first surface of an insulating base. Terminals for connection to the controlled heating and cooling apparatus and terminals for connection to...
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4949060 |
Fuse-isolator - actuator
The invention provides an isolating fusible link, in series with a transformer primary circuit breaker device, for producing an isolating gap after an occurrence of a primary fault condition. More...
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4764745 |
Slide switch with externally mounted protective circuit breaker
In this construction there are provided: a case; several contact members exposed within the case; several lead terminals electrically connected to some of the contact members, and a support member,...
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4528538 |
Combined switch and circuit breaker
A combined switch and circuit breaker device. The circuit breaker includes trip means for interrupting current flow when the current exceeds a predetermined level and for preventing the resumption...
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4329669 |
Circuit breaker with auxiliary tripping unit
A manually operated two-pole excess-current protective circuit breaker includes a bimetal control for a switching latch serving both contact bridges. In case of an excess current, the circuit...
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4306210 |
Two-stage temperature switch
An electrical switch assembly including two separate, temperature-dependent electrical switches, one of the electrical switches being substantially mechanically acting and the second of the...
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4255629 |
Crash and rollover cutoff switch
A crash-sensing switch assembly for breaking an electrical circuit has a weight pivotally supported on a horizontal surface with the center of gravity above the surface. The weight is free to move...
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4169999 |
Thermal-magnetic switch
A remotely actuable switch includes a housing defining a cavity having first and second thermally separated chambers, each enclosing a pair of spaced electrical contacts and each having an...
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4053938 |
Temperature sensing transformer primary switch
A temperature sensing transformer primary switch for a distribution transformer, the switch being mounted within the distribution transformer below the level of the dielectric fluid and being...
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3951015 |
Fuse handling tool
Disclosed is a tool for removing and installing fuses in metal-enclosed switchgear. The switchgear includes one or more fuses and one or more isolating switches and operating mechanisms for...
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3778591 |
CONTROL APPARATUS FOR A COOLING DEVICE
A control apparatus designed to control the flow of a gas from an inlet to an outlet is shown. The control apparatus includes a housing provided with switch means operatively connected thereto. A...
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3712053 |
THERMAL-MECHANICAL ENERGY TRANSDUCER DEVICE
To permit remote location of a thermal-mechanical energy transducer unit having a heat sensitive operating element, a heat pipe, such as a capillary tube containing therein a fabric, such as...
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3679849 |
SWITCH WITH A DELAY MECHANISM
A switch assembly having a primary switch which actuates a secondary switch through an intermediate member. After the switches have been switched to the ON position, the intermediate member is set,...
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3665359 |
HEATER FOR PRESSURE SWITCH
A flexible diaphragm-type pressure switch sensitive to light pressures on the order of 7 ounces to 11 ounces for use in freezing, moist atmospheres containing plant particles such as husks, cracked...
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3575645 |
POWER ZENER PACKAGE
A self-protective circuit element including a semiconductor device and a switch responsive to the semiconductor device temperature and to current through the semiconductor device in a casing. The...
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3510816 |
TEMPERATURE-DIFFERENTIAL PRESSURE SWITCH
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3113255 |
Control system responsive to voltage, particularly for controlling the charging or discharging operation of an accumulator battery
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3052768 |
Plug-in contact device
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3037102 |
Snap switch
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2980779 |
Motor protector
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2956136 |
Thermostatic control unit for coffee makers or the like
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2906835 |
Thermo-responsive switch
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2898420 |
Circuit breaking protectors
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2892591 |
Control apparatus using thermoelectric power
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2876556 |
Combined motor protector and door switch for a laundry machine
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2847538 |
Thermally controlled switch
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2802081 |
Immersion type thermostat
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2796492 |
Adjustable thermostatic control mechanism
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