Collapsible hangers
First Claim
Patent Images
1. A collapsible hanger for use in mining comprising:
- an upper hook;
at least one lower hook; and
a connecting member, which connects said upper hook to said at least one lower hook, wherein said at least one lower hook is constructed such that when tension is applied to a cable supported by said at least one lower hook, said hanger releases said cable.
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Abstract
The present invention comprises a collapsible hanger and a method for using the same for supporting, among other things, cables from the ceiling of mines. The collapsible hangers of the present invention allow the cables to fall to the floor when tension, pressure, and/or weight is applied to the hangers, either directly or indirectly.
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Citations
69 Claims
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1. A collapsible hanger for use in mining comprising:
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an upper hook;
at least one lower hook; and
a connecting member, which connects said upper hook to said at least one lower hook, wherein said at least one lower hook is constructed such that when tension is applied to a cable supported by said at least one lower hook, said hanger releases said cable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method of working with cables in a mine comprising:
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installing a collapsible hanger comprised of;
an upper hook;
at least one lower hook; and
a connecting member, which connects said upper hook to said at least one lower hook, wherein said at least one lower hook is constructed such that when tension is applied to a cable supported by said at least one lower hook, said hanger releases said cable;
releasing said cable from said hanger by applying tension to said cable. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69)
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Specification