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Shackle apparatus

a technology of shackles and slings, applied in the direction of shackles, load-engaging elements, transportation and packaging, etc., can solve the problems that the shackles on other slings or lifting cables defeat the purpose of the above-mentioned safety practices

Inactive Publication Date: 2011-07-21
USEFUL PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The shackle apparatus of the present invention is intended to be permanently attached to a sling of a lifting cable such that the retaining member prevents such shackle apparatus from being removed and installed on another sling or lifting cable without substantially damaging or destroying the shackle apparatus of the present invention, thereby rendering it effectively useless.
It is a more particular object of the present invention to provide a shackle apparatus which cannot be removed from one lifting sling or cable and installed on another lifting sling or cable without substantially destroying the shackle apparatus of the present invention and rendering it useless.

Problems solved by technology

The removal of shackles from such slings and re-use of such shackles on other slings or lifting cables defeats the purpose of the aforementioned safety practices.

Method used

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Examples

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Embodiment Construction

Referring now to the drawings, FIG. 1 depicts a partially-exploded front view of an embodiment of a conventional lifting assembly utilizing a prior art shackle member 1 having a curved, substantially U-shaped body section 8, first arm 2 and second arm 3. A throat or gap 5 is defined between said first arm 2 and second arm 3, and a mouth or opening 4 leads to said throat 5. Arms 2 and 3 of prior art shackle 1 also include substantially parallel ends 6 and 7 respectively. Substantially parallel ends 6 and 7 include aligned coaxial transverse bores 6a and 7a (not visible in FIG. 1), respectively, for receiving a bolt 23 or other rigid member.

In the conventional lifting assembly depicted in FIG. 1, mouth 4 of prior art shackle 1 is first passed through loop 21 of a sling or lifting cable 20. Coaxial transverse bores 6a and 7a of prior art shackle 1 are aligned with an opening (not visible in FIG. 1) in a lift lug or pad eye 28 of a load to be lifted. Bolt 23 is thereafter inserted throu...

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PUM

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Abstract

A shackle apparatus including a generally U-shaped shackle body having an arcuate end, a pair of parallel arms, and a retaining member spanning a gap defined between the shackle arms. The retaining member cooperates with the shackle body to define a closed loop which can be permanently attached to a sling or lifting cable. The retaining member prevents the shackle apparatus from being removed and installed on another sling or lifting cable without substantially destroying the shackle apparatus of the present invention.

Description

STATEMENTS AS TO THE RIGHTS TO THE INVENTION MADE UNDER FEDERALLY SPONSORED RESEARCH AND DEVELOPMENTNONEBACKGROUND OF THE INVENTION1. Field of the InventionThe present invention relates generally to an assembly for connecting a sling, cable, or other lifting device to a load to be lifted. More particularly, the present invention relates to a shackle apparatus that is permanently attached to a set of slings, lifting cables or the like. More particularly still, the present invention relates to a captivated shackle apparatus that must also be discarded when attached slings or lifting cables are discarded.2. Brief Description of the Prior ArtNumerous devices have been devised for the purpose of lifting baskets, skids and / or similar equipment, especially in connection with the transportation of said baskets, skids and / or equipment from one location (such as, for example, the deck of a boat) to another location (such as, for example, an offshore platform) using a crane, hoist or other lif...

Claims

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Application Information

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IPC IPC(8): B66C1/00
CPCB66C1/10F16G15/06B66C1/66B66C1/40
Inventor SEGURA, VICTOR J.
Owner USEFUL PRODS
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