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US 4,227,170 AGranted
Current-reducing device
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsMoshe Friedman, Michael G. Ury
Life of this patent
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Abstract
A current-reducing device (fuse or switch) is described comprising a foil mber of Al or Mg which is immersed in a fluid with which it will chemically react (such as H.sub.2 O or H.sub.2 O.sub.2) above a certain temperature. The foil member is an electrical conductor but becomes an electrical insulator as a result of the chemical reaction.
Claims6
A current-reducing device comprising:
- a modifiable-conductive-state (MCS) member;
- and
- a volume of fluid, said MCS member being immersed in said fluid,
- said MCS member being fabricated from an electrically conductive material and said fluid being a material which is substantially electrically non-conductive,
- said member and said fluid being of materials which chemically react exothermically with each other at a predetermined temperature to convert the MCS member to an electrical insulator.
2 more elements
Dependencies are inferred from the claim text.