.~.~ With shield for lead-in seal or between the lead-in conductors
DEFINITION
Classification: 174/50.59
(under subclass 50.5) Subject matter provided with means for shielding the joint between the lead-in conductor and the portion of the envelope through which the lead-in passes, or for preventing electrical leakage currents between the lead-in conductors along the envelope wall.
(1) Note. The shield may be for the purpose of preventing a deposit of sputtered or vaporized material upon or around the lead-in and the envelope portion adjacent thereto, or to prevent the sealing material at the joint from being attached by deleterious substances, or for any other shielding purpose.
SEE OR SEARCH THIS CLASS, SUBCLASS:
17.08, and 55.52+, where the device is provided with an electrical connector (e.g., a base) and the electrical connector is formed so as to constitute a shield between the lead-in conductors or for the joint.
35, for hermetically sealed envelopes within the class definition with electrostatic or electromagnetic shields for the envelope or a part thereof.
SEE OR SEARCH CLASS
313, Electric Lamp and Discharge Devices, 626, for gas or vapor type electric lamps and electric space discharge devices with shielding means for the lead-in conductors, subclass 313 for the miscellaneous electric lamps and discharge device with electrical shielding means for the device or a part thereof, and subclasses 317+ for electric lamps and discharge devices with lead-in conductors including such devices as have shielding means for the lead-in joint or between the lead-in conductors.
