Davit Arm

• US 20160281909A1
• Filed: 03/23/2016
• Published: 09/29/2016
• Est. Priority Date: 03/23/2015
• Status: Active Grant

• Current Assignee: Engineered Supply L.L.C.
• Original Assignee: Engineered Supply L.L.C.
• Inventors: Grant, Arlen Paul
• Granted Patent: US 10,457,528 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B66C 23/00 Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes base supporting structures with legs B65C5/00
• CPC Class Codes: B66C 23/022 Pivot axis common with column
• CPC Class Codes: F16M 11/18 with mechanism for moving the apparatus relatively to the stand

Abstract

In some embodiments, a davit arm system comprises a davit body arranged to engage a support and an arm supported by the davit body. The arm is moveable along a length of the davit body. In some embodiments, a bearing is oriented between said arm and said davit body. In some embodiments, a bearing a polymer sleeve. In some embodiments, a bearing comprises rollers. In some embodiments, a bearing comprises ball transfer bearings. In some embodiments, a bearing excludes moving parts.

Claims

1. A davit arm system comprising:

a davit body arranged to engage a support, said davit body having a length; and

an arm supported by said davit body, said arm moveable along the length of the davit body.

2. The davit arm system of claim 1, comprising a bearing oriented between said arm and said davit body.

3. The davit arm system of claim 2, wherein said bearing comprises a polymer tube.

4. The davit arm system of claim 2, wherein said bearing consists of a polymeric material.

5. The davit arm system of claim 2, wherein said bearing excludes rollers.

6. The davit arm system of claim 2, wherein said bearing comprises a roller.

7. The davit arm system of claim 2, wherein said bearing comprises a ball transfer.

8. The davit arm system of claim 1, wherein said arm comprises a mount engaged with said davit body and an arm body detachable from said mount.

9. The davit arm system of claim 8, wherein said mount comprises a receptacle that defines a cavity, at least a portion of said arm body receivable in said cavity.

10. The davit arm system of claim 9, wherein said mount and said arm body comprise complimentary apertures arranged to receive a fastener.

11. The davit arm system of claim 1, wherein said davit body and said arm comprise complimentary apertures arranged to receive a fastener.

12. The davit arm system of claim 1, wherein said arm comprises an anchor.

13. The davit arm system of claim 1, wherein said support comprises a plurality of support apertures and the davit body comprises a plurality of davit apertures, the davit apertures aligned with the support apertures.

14. A method comprising:

providing a davit body having a length, said davit body comprising an arm that is moveable along said length; and

moving said arm along said length of said davit body from a first position to a second position.

15. The method of claim 14, wherein said moving comprises raising said arm.

16. The method of claim 14, wherein said moving comprises tensioning a tension cable.

17. The method of claim 14, wherein said arm comprises an anchor and said moving comprises attaching a tension cable to said anchor.

18. The method of claim 14, further comprising fixing said arm in said second position.

19. The method of claim 14, wherein said arm comprises an arm body and a mount, said mount engaged to said davit body, said method comprising attaching said arm body to said mount.