Support sling

Details Support sling Support sling

1993-08-30

1995-06-20

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

405288, 403302, 403310, E21D 2000

Patent

active

054256020

ABSTRACT:
A support sling, useful in the mining industry, for example, for supporting overhead loads such as mine roofs; the sling includes a pair of generally coplanar anchor lengths, sometimes called anchor bolts, having inwardly directed ends mutually facing each other and which, thus, are essentially coaxial; a similarly coaxial take-up coupling structure secures the ends and is constructed, either in active or passive mode, to restrain loads, acting under the force of gravity, from dilating downwardly to extreme conditions, and this in a manner as not to allow for the generation of serious force couples in the sling.

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patent: 4934873 (1990-06-01), Calandra
patent: 4946315 (1990-08-01), Chugh et al.
patent: 5238329 (1993-08-01), Long et al.

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