Load carrying slings

• US 4,350,380 A
• Filed: 03/20/1980
• Issued: 09/21/1982
• Est. Priority Date: 03/27/1979
• Status: Expired due to Term

• Current Assignee: William C. Williams
• Original Assignee: William C. Williams
• Inventors: Williams, William C.
• Primary Examiner(s): CHERRY, JOHNNY DAN
• Application Number:
  US06/132,013
• Time in Patent Office: 915 Days
• Field of Search: 294/74-77, 294/78 R, 24/16 R, 24/122.3, 217/66, 217/69, 224/49
• US Class Current: 294/74
• CPC Class Codes: B66C 1/18 Band-type slings
• CPC Class Codes: D07B 2201/2084 characterised by their shape
• CPC Class Codes: D07B 2201/2093 being translucent

Abstract

A load carrying sling including a protective sheath 15 over the rope 10 with loops 11,12 at opposite ends, the sheath being formed of a tough resilient plastics material and having a thick protective layer 18 on the inner surface of the sling with a number of openings in the back of the sheath between the side walls 19. The openings can be closed by a removable block 23 when the sling is used as a choke hitch. Alternatively, the whole sheath may be formed of a transparent flexible material to allow inspection of the rope.

Claims

1. A load carrying sling comprising an internal flexible load carrying tension element, and a flexible sheath formed with passage means for receiving said tension element, said sheath extending over a substantial length of said tension element and being formed with a plurality of longitudinally spaced viewing apertures peripherally framed by the material of the sheath to include transverse bridges separating the viewing apertures and providing adjacent walls of the passage means whereby substantially all parts of said element can be inspected and substantially the full length of said element is protected.

2. A sling as claimed in claim 1, wherein at least part of said sheath is made from transparent material.

3. A sling as claimed in claim 1, wherein said sheath has an inner front face and an outer reverse side and is formed with the plurality of apertures on the reverse side thereof.

4. A sling as claimed in claim 3, including movable means for closing said apertures, when the sling is in use.

5. A sling as claimed in claim 3, wherein said sheath has a continuous layer of tough resilient material over substantially the whole of its inner face.

6. A sling as claimed in claim 3, wherein pillars project from the bridges to the adjacent surface of the inner face of the sheath providing side-by-side passages for tension elements.

7. A sling as claimed in claim 1, wherein the sheath is a one piece integral unitary body in a synthetic plastics material with relatively narrow bridges separating the viewing apertures and with the sling being movable within limits along said tension element over a distance at least equal to the width of said bridges for inspection purposes.