(under subclass 238) Devices which have in addition to the supporting and/or spacing structure for the electrodes, means to damp mechanical vibrations of an electrode or an electrode support.
(1) Note. The means provided is sometimes a weight mounted upon the electrode or electrode support so as to give the electrode a greater mass so that the vibrations are damped.
(2) Note. Where the vibration damping means involves only the structure of the electrode or the electrode supporting means, such as providing either rigid or resilient supporting means or making the electrode or its support of a specific shape, the patent is not classified in this subclass, but will be found in subclass 238 or one of the other subclasses indented under subclass 238.
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50, for devices under the class definition which are provided with a detachable electric connector (e.g., socket) or support which includes resilient supporting means for the lamp or discharge device or which is provided with vibration damping means.
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188, Brakes, for miscellaneous means for retarding the motion of moving mechanism by friction, by positive engagement of elements or by the internal resistance of a fluid or a field of force. See especially 378+, for structures which include a weight designed for attachment to a moving member to damp the vibrations of the member.