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Electric switch for enhancing electric current flow by quantum tunneling effect
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Shock sensor switch having a liquid conductor
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Jitter switch
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Shock insensitive tilt switch with floating spherical restrictor to inhibit flow of conductive liquid
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Glass-to-metal seal
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Position insensitive shock sensor with closure delay
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Position insensitive shock sensor
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Methods and apparatus for electric resistance welding
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Motion responsive alarm system
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Switch and alarm system responsive to sudden movement, angular tilt and vibration
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Position insensitive mercury relay switch
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Mercury type tilt switch
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Mercury tilt switch
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Mercury switch
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Position-insensitive mercury relay
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Position-insensitive mercury relay
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Mercury switch
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Welding head for producing uniform and repeatable resistance welds
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Position insensitive mercury switch having a magnetically actuated slug floating in mercury
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