(under the class definition) Systems which include a resonant device and a space discharge structure positioned at a point of high potential on said resonant device, the space discharge structure breaking down in response to energy above a predetermined level in a transmission line connected to the resonant device to modify the effective electrical characteristics of the resonant device so as to block substantially the flow of any energy over the transmission line, free passage of energy occurring over the line when the energy fails to attain this predetermined level.
SEE OR SEARCH THIS CLASS, SUBCLASS:
2+, for plural channel systems which include a resonator type breakdown discharge system for substantially blocking a channel where the discharge device is made conductive by a high energy level in the transmission line, and subclasses 100+ where the discharge device is made conductive by energy other than the energy in the transmission line.
2+, 14, 15, 16, 17+, and 81, for other systems within the class definition which reduce the amplitude of the wave energy but which do not involve the use of a resonator type breakdown discharge device.
262, for transmission line elements and components which perform a switching or blocking function, other than resonator type breakdown discharge systems.
SEE OR SEARCH CLASS
313, Electric Lamp and Discharge Devices,
567+, for miscellaneous gaseous discharge device structure, including lightning arresters, and subclasses 324 and 325 for lightning arresters of the spark or arc type which operate in the open air.
315, Electric Lamp and Discharge Devices: Systems,
32, 371 for miscellaneous gaseous discharge systems and particularly subclass 39 for the structural combination of a discharge device and a resonant device, i.e., combined in an integral or nonseparable manner.
323, Electricity: Power Supply or Regulation Systems,
304, 317 for self-regulating systems.
327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,
365+, for miscellaneous gating circuits which utilize electron tubes.
361, Electricity: Electrical Systems and Devices,
1+, for miscellaneous systems for protecting electrical apparatus by opening a circuit or making a shunt or short circuit when the current exceeds a predetermined value, see especially subclass 112 where the system includes electronic tubes, and subclasses 117+ for lightning arrester systems which include an arc discharge device.