Hoisting line fittings with working load limit indicia

• US 5,103,755 A
• Filed: 01/22/1991
• Issued: 04/14/1992
• Est. Priority Date: 01/22/1991
• Status: Expired due to Term

• Current Assignee: Crosby Group Incorporated
• Original Assignee: Crosby Group Incorporated
• Inventors: Garrett, Charles R.
• Primary Examiner(s): Cuchlinski, Jr., William A.
• Assistant Examiner(s): Worth, W. Morris
• Application Number:
  US07/643,774
• Time in Patent Office: 448 Days
• Field of Search: 73/862.39, 73/862.53, 73/862.56, 73/761, 73/762, 116/200, 116/212, 116/DIG. 34, 411/8, 411/14, 411/400, 411/401
• US Class Current: 116/200
• CPC Class Codes: B66C 1/12 Slings comprising chains, wires, ropes, or bands; Nets article side grippers suspended by ropes or chains from crane hooks B66C1/42
• CPC Class Codes: B66C 1/40 formed or fitted with load measuring or indicating devices
• CPC Class Codes: F16G 15/06 Shackles designed for attachment by joint pins to chain elements, e.g. D-shackles so called harp links; the D-chain links are classified according to the corresponding kind of chain
• CPC Class Codes: F16G 15/12 Chain links

Abstract

Fittings for use with one or more loading bearing lines or chains comprising indicia markings on a working portion of the fitting, the markings comprise an inline load position and angular load positions of the lines or chains when used with the fitting.

Claims

1. Fitting for use with one or more loading bearing lines or chains comprising;

indicia markings on a working portion of said fitting, said markings comprise an inline load position and angular load positions of said lines or clains when used with said fitting.

2. The apparatus of claim 1 wherein said fitting is a hook.

3. The apparatus of claim 1 wherein said fitting is a weldless ring.

4. The apparatus of claim 1 wherein said fitting is a sling link.

5. The apparatus of claim 1 wherein said fitting is an eye bolt.

6. The apparatus of claim 1 wherein said fitting is a shackle.

7. The apparatus of claim 1 wherein said fitting includes indicia indicative of a fixed spaced dimension.

8. The apparatus of claims 1, 2, 3, 4, 5, 6, or 7 wherein said indicia comprise linear protuberances.

9. The apparatus of claims 2, 2, 3, 4, 5, or 6 wherein said angular load position indicia are at 30, 45, and 60 from a straight load position indicia.

10. The apparatus of claims 1, 2, 3, 4, 5, 6, or 7 wherein said indicia comprise linear indentations.