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Thermal fuse

  • US 4,622,534 A
  • Filed: 02/14/1985
  • Issued: 11/11/1986
  • Est. Priority Date: 02/15/1984
  • Status: Expired due to Fees
First Claim
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1. A thermal fuse for use in interconnection of lead acid batteries and adapted to fuse as a result of heat being conducted through said fuse from the batteries or other devices to which it is attached, rather than as a result of direct heating of the fuse consequent on the current carried by said fuse, said fuse comprising:

  • a pair of mounting plates for permitting current to serially flow therethrough to devices to which they are attached, anda heat meltable electric current conducting material disposed in its solid form between the mounting plates and providing a flow path for electric current between the mounting plates, said heat meltable electric current conducting material connecting with a member which will remain unmelted at the temperature at which the heat meltable electric current conducting material melts, said member being of sufficient dimensions so that when the heat meltable electric current conducting material melts it will fall by gravity from between the mounting plates and draw substantially all of the heat melted material with it.

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