"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
|6495786||Vacuum exhaust element of vacuum switch|
A vacuum exhaust element of a vacuum switch has an ordinary withstand voltage because the vacuum vessel and power source element are grounded, therefore not requiring the high voltage to be taken into consideration. This way, the vacuum exhaust element is...
|4659886||Disconnect switch for a metal-clad, gas-insulated high-voltage switchgear|
A disconnect switch, suitable for various conductor runs within a section of a metal-clad, gas-filled, high-voltage switchgear, with shielding bodies enclosing the ends of the conductors, is operated through a rotating insulator shaft that is perpendicula...
|4401869||Hermetically sealed electrical switch with pressure regulating getter means|
A hermetically sealed, partially evacuated switch is maintained at a non-oxidizing residual pressure of from about 10-1 to 102 Torr by inclusion of selected hydrogen gettering metal hydride within the sealed switch envelope. The meta...
|4331850||Vacuum switch including a getter device|
A vacuum switch comprising a vacuum tight envelope accommodating in vacuum contacts mounted on current carrying contact rods and capable of movement with respect to each other as well as a getter device, comprising a getter element provided with a getter ...
|4021629||Arc electrode, especially for a contact arrangement in a vacuum switch|
An arc electrode, especially for a contact arrangement in a vacuum switch, comprising an essentially hollow cylindrical contact component and electrode elements fixedly connected with the essentially hollow cylindrical contact component and extending into...
|4021633||Persistent current switch including electrodes forming parallel conductive and superconductive paths|
A persistent current switch adapted to connect the ends of a superconducting coil together and to disconnect the ends thereof includes a vacuum casing and at least a pair of electrodes disposed in the vacuum casing in opposing relationship to each other. ...