(under subclass 110) Structures in which the insulating means includes relatively short insulating elements in the form of buttons, plates, discs, beads, etc., strung along or upon one or more conductors or cables.
(1) Note. For similar structures in which the buttons, discs, beads, etc., are specially designed or arranged to provide spaces for a fluid, see this class, subclass 24 and indented subclasses, especially subclass 28.
(2) Note. For bead or disc type insulators specially designed as mid-line spacers, see this class, subclass 146.
