US PATENT SUBCLASS 337 / 33
.~.~.~ With common structural elements (e.g., fuse provides support or element of spark gap structure)

Current as of: June, 1999
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337 /   HD   ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES

14  DF  ELECTROTHERMALLY ACTUATED SWITCHES {9}
28  DF  .~ Space discharge device (gaps, lightning arrester, etc.) {4}
31  DF  .~.~ With fusible element (e.g., cutout means) {2}
33.~.~.~ With common structural elements (e.g., fuse provides support or element of spark gap structure)

DEFINITION

Classification: 337/33

(under subclass 31) Subject matter including structural elements forming an integral part of or common to both the fusible element cut out means or fusible element controlled switch and the space discharge device. For example; the spark gap structure may provide a mounting or support for the fuse or one fuse cap may also be an electrode in the spark gap circuit.