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Breakable hangers

  • US 7,757,996 B2
  • Filed: 12/30/2004
  • Issued: 07/20/2010
  • Est. Priority Date: 10/29/2004
  • Status: Expired due to Fees
First Claim
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1. A hanger for carrying an overhead cable used in a mine, the hanger designed to intentionally break and release the cable from the hanger with remote retraction of the cable from the mine, the hanger comprising:

  • an upper hook that securely hangs from a ceiling of the mine;

    at least one lower hook that carries and supports the cable; and

    a connecting member, which connects the upper hook to the at least one lower hook;

    wherein the at least one lower hook and the connecting member have a gauge that is less than the gauge size of the upper hook and wherein the at least one lower hook has a lower gauge size than the gauge size of the connecting member;

    such that the lower hook and the connecting member have strength and composition sufficient to support the cable in normal use, but which, when tension or pressure is applied to the lower hook by remote retraction of the cable from the mine, break to release the cable and facilitate safe removal of the cable from the mine.

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