(under subclass 217) Subject matter wherein the extraction or expulsion means comprises, at least in part, a spring biasing means whereby a force is exerted to eject the remains of a fuse link after rupture of the fusible portion takes place.
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275, below, for arc extinguishing means wherein rod type contacts directly attached to the fusible elements are bodily forced apart when the fuse is blown under the influence of a tensioned spring means.
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361, Electricity: Electrical Systems and Devices,
1+, for safety and protection of systems and devices,
subclasses 15+, 38+, and 275.1+ for fusible elements combined with particular devices to be protected.
