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7701688 |
Structure for installing lightning arrester for electric pole
A structure for installing a lightning arrester between the cross arm mounted to the upper end of an electric pole and a power line is disclosed. A dead end clamp, the lightning arrester and an...
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6348851 |
Breaker switch and battery including the same
Breaker switch arranged on a wall (4) of an electric device (9) including a receptacle (20), containing a thermofusible composition (25) having a softening point θ1, and a flexible metal strip ...
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6323750 |
Electrical component with a safety release
An electrical component is installed in a plastic cup. The component has two electrical connecting lines, and a parting location that is bridged by a solder metal is arranged in one lead. In...
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5907270 |
Current-limiting switch
A current-limiting switch, with current connections and contacts, at least one of which is movable, having an associated drive, for opening the moving contact when a predefined electric current...
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5526218 |
Surge absorbing device to protect from overvoltage and overcurrent
A surge absorbing device with protection function to protect a circuit from overvoltage and overcurrent, comprising a gap or microgap surge absorbing element and a lower melting point metal wire...
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5475356 |
Gas-tube arrester
A gas-tube arrester includes an arrester body in which an inert gas is contained, and first and second electrodes face each other separated by an insulator. An insulating, heat-resistant film is in...
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5434550 |
Arrester disconnector
A device for connecting and then isolating and disconnecting an arrester can be mounted in an insulating bracket. The device includes first and second electrical terminals and first and second...
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5248953 |
Thermal overload protection device for electronic components
A thermal overload protection device for electronic components, in particular for the telecommunication and data technology. The overload device has a spring-elastic shorting link 6 and a melt...
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5231367 |
Thermal response switch and a surge absorbing circuit using the same
A surge absorbing element is parallel connected to an electronic device via a pair of communication lines. A normally closed thermal response switch is serially connected between the electronic...
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5198791 |
Surge absorber
The surge absorber having a surge absorbing element, and first and second wire means for electrically connecting the surge absorbing element across the input lines of an electronic device. The...
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4864455 |
Arrester disconnecting device
A surge arrester disconnecting device which includes a fixed electrode, a movable electrode, and a latch device for holding the two electrodes in engagement. A trigger device, associated with a...
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4743996 |
Electrical distribution apparatus having fused draw-out surge arrester
Electrical distribution apparatus, such as a pad-mounted electrical distribution transformer, including an electrically grounded tank, an electrical element in the tank, and a draw-out surge...
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4654619 |
Module for the protection of multiwire lines against overvoltages
A module for the protection of multiwire lines against overvoltages comprises a casing formed by a receptable and a terminal carrier plate. The terminal carrier plate comprises a pair of terminals...
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4600861 |
Fluorescent lamp circuit breaker
A rapid-start fluorescent lamp includes a pair of spaced electrodes within an envelope with one electrical lead connected to an electrode and the other lead coupled to the electrode by a...
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4600860 |
Rapid-start fluorescent lamp closure switch
A rapid-start fluorescent lamp has a thermally-sensitive circuit breaker disposed thereon for disconnecting the electrodes of the lamp from an energizing source at a given range of bulb...
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4542363 |
Open fuse cutout
An open fuse cutout has a built-in lightning arrester. A supporting insulator has an attachment hole extending substantially perpendicularly to the axis thereof with the lightning arrester element...
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4538202 |
Current transformer secondary voltage limiter
A device for protecting the secondary winding of a current transformer against destructive or dangerous overvoltages when connected across the secondary, has a transparent tubular casing with a...
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4503414 |
Current interrupting lightning arrester isolator
A device for connection to lightning arresters isolates the grounded lead and contains the resulting spark or arcing flame, including any hot particles generated when ground disconnection is made...
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4500862 |
Power source isolator
A self-contained device to protect electrical appliances from damage or destruction caused by abnormal power surges due to lightening and other causes is plugged into any household electrical...
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4335415 |
Antenna lightning arrestor
A lightweight frame having a base of non-conducting material and end frame members consisting of aluminum mounts a pair of clip-type fuse supports. Each fuse support is attached to connectors which...
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4051546 |
Gas tube arrester protector
A gas tube arrester protector for protecting a pair of telephone lines from high voltage or surge current includes an insulating housing in which is disposed a three electrode gas tube overvoltage...
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4015228 |
Surge absorber
This invention provides a surge absorber for absorbing surges of electric current. The absorber has a metal oxide varistor hermetically sealed in a hollow insulator by a top and a lower electrical...
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3947797 |
Circuit interrupting means
A circuit interrupting device comprising a vacuum fuse having an evacuated envelope wherein one or more fusible elements electrically connect spaced open ends of aligned tubular electrodes which...
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3776040 |
ELECTRICAL THERMOMETER SYSTEM AND SENSOR THEREFOR
An electrical clinical thermometer system including a probe for insertion into a body cavity. A temperature sensor is carried by the probe whose electrical resistance changes with temperature. This...
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3651440 |
OVER VOLTAGE ARRESTER
A voltage arrester having a tubular insulating member with a pair of electrodes disposed at opposite ends of the tubular member and facing inwardly thereof. The electrodes are frustum-shaped and...
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3448341 |
ELECTRICAL LOAD PROTECTION DEVICE
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3435397 |
COMBINATION OVERVOLTAGE PROTECTIVE DEVICE AND CONDUCTOR SUPPORT
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3374327 |
Line insulator-lightning arrester
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3313983 |
Transformers
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3218517 |
Combined lightning arrester and fuse cutout
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3178613 |
Transformer fuse
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3116437 |
Thermally protected ballast apparatus
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3038046 |
Combined cutout and lightning arrester bracket assembly
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2989608 |
Electrical protective equipment
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2859423 |
Electrical connector for twin lead-in line
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2838634 |
Method for limiting excess currents in direct or alternating currents mains
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