IP Library › Granted Patent US 7,614,209
Granted Patent B1
US 7,614,209 · App. 12/198,398 · Granted Nov 10, 2009

Mechanically releasable shackle pin

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,614,209
App. No.
12/198,398
Granted
Nov 10, 2009
Kind
B1
Abstract

A mechanically releasable shackle pin arrangement that is readily operated by an ROV and is not affected by the hydrostatic pressures encountered at depth. A shackle body having two ends has a shackle pin received through bores at one end of the shackle body. A shackle nut threaded on the shackle pin secures the shackle pin in an installed position through the bores in the shackle body. An anti-rotation link plate is attached to the shackle body. The anti-rotation link plate extends to one end of the side plate. The shackle pin extends through bores at one end of the shackle body and the anti-rotation link plate and is secured in its installed position by a shackle nut threaded on the shackle pin. Means for preventing rotation of the shackle nut and loss of the shackle nut is provided on the anti-rotation link plate such that the shackle pin can be removed by a remotely operated tool on an ROV at depth to release a load without the need for hydraulics on the shackle assembly. The shackle pin is provided with a special plate arrangement designed to allow the shackle pin to be gripped and rotated by a remotely operated tool on an ROV.

Claims (27)

1. A mechanically releasable shackle pin and shackle arrangement, comprising:

a. a shackle body having two ends;

b. a shackle pin received through bores at one end of the shackle body;

c. means for securing the shackle pin in an installed position through the bores in the shackle body, comprising a shackle nut threaded on the shackle pin;

d. means for preventing rotation of the shackle nut, comprising:

i. an anti-rotation link plate attached to the shackle body with one end of the plate having a bore that receives the shackle pin; and

ii. side walls on the anti-rotation link plate that capture the shackle nut; and

e. means for allowing mechanical removal of the shackle pin from its installed position.

2. The mechanically releasable shackle pin and shackle arrangement of claim 1 , wherein the means for allowing mechanical removal of the shackle pin from its installed position comprises a plate engaged with the shackle pin capable of being gripped and rotated by a remotely operated tool.

3. A mechanically releasable shackle pin and shackle arrangement, comprising:

a. two main side plates spaced apart from each other;

b. a shackle pin received through bores at one end of the side plates;

c. means for securing the shackle pin in an installed position through the bores in the side plates, comprising a shackle nut threaded on the shackle pin;

d. means for preventing rotation of the shackle nut, comprising:

i. an anti-rotation link plate attached to one of the main side plates with one end of the plate having a bore that receives the shackle pin; and

ii. side walls on the anti-rotation link plate that capture the shackle nut; and

e. means for allowing mechanical removal of the shackle pin from its installed position.

4. The mechanically releasable shackle pin and shackle arrangement of claim 3 , wherein the means for allowing mechanical removal of the shackle pin from its installed position comprises a plate engaged with the shackle pin capable of being gripped and rotated by a remotely operated tool.

5. A mechanically releasable shackle pin and shackle arrangement, comprising:

a. two main side plates spaced apart from each other;

b. an anti-rotation link plate attached to one of the main side plates with one end of the plate having a bore that receives the shackle pin;

c. a shackle pin in an installed position received through bores at one end of the side plates and through the bore in the anti-rotation link plate;

d. a shackle nut threaded on the shackle pin for securing the shackle pin in the installed position through the side plates and anti-rotation link plate;

e. means on the anti-rotation link plate for capturing and preventing rotation of the shackle nut; and

f. means for allowing mechanical removal of the shackle pin from its installed position.

6. The mechanically releasable shackle pin and shackle arrangement of claim 5 , wherein the means for capturing and preventing rotation of the shackle nut comprises side walls on said anti-rotation link plate that capture the shackle nut.

7. The mechanically releasable shackle pin and shackle arrangement of claim 5 , wherein the means for allowing mechanical removal of the shackle pin from its installed position comprises a plate engaged with the shackle pin capable of being gripped and rotated by a remotely operated tool.

Assignments (15)
SECURITY INTEREST Recorded Jun 30, 2020
From: CHICAGO BRIDGE & IRON COMPANY; CHICAGO BRIDGE & IRON COMPANY (DELAWARE); SPARTEC, INC.; J. RAY MCDERMOTT, S.A.; MCDERMOTT, INC.; MCDERMOTT TECHNOLOGY, LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 053093/0457 →
SECURITY INTEREST Recorded Jan 28, 2020
From: MCDERMOTT, INC.; CB&I GROUP INC.; CHICAGO BRIDGE & IRON COMPANY; CHICAGO BRIDGE & IRON COMPANY (DELAWARE); SPARTEC, INC.; J. RAY MCDERMOTT, S.A.; MCDERMOTT INTERNATIONAL, INC.
To: CREDIT AGRICOLE CORPORATE AND INVESTMENT BANK, AS COLLATERAL AGENT
Reel/Frame 051720/0469 →
SECURITY INTEREST Recorded Oct 21, 2019
From: MCDERMOTT, INC.; CB&I GROUP, INC.; CHICAGO BRIDGE & IRON COMPANY; CHICAGO BRIDGE & IRON COMPANY, AN ILLINOIS CORPORATION; SPARTEC, INC.; J. RAY MCDERMOTT, S.A.; MCDERMOTT INTERNATIONAL, INC.
To: CREDIT AGRICOLE CORPORATE AND INVESTMENT BANK, AS COLLATERAL AGENT
Reel/Frame 050783/0909 →
SECURITY INTEREST Recorded May 15, 2018
From: J. RAY MCDERMOTT, S.A.; MCDERMOTT INTERNATIONAL, INC.; MCDERMOTT, INC.; SPARTEC, INC.; MCDERMOTT SUBSEA ENGINEERING, INC.
To: CREDIT AGRICOLE CORPORATE AND INVESTMENT BANK
Reel/Frame 046154/0001 →
RELEASE OF SECURITY INTEREST Recorded May 14, 2018
From: CREDIT AGRICOLE CORPORATE AND INVESTMENT BANK
To: J. RAY MCDERMOTT, S.A.
Reel/Frame 045799/0594 →
RELEASE OF SECURITY INTEREST Recorded May 14, 2018
From: CREDIT AGRICOLE CORPORATE AND INVESTMENT BANK
To: MCDERMOTT INTERNATIONAL, INC.; MCDERMOTT, INC.; J. RAY MCDERMOTT, S.A.; SPARTEC, INC.; MCDERMOTT SUBSEA ENGINEERING, INC.; MCDERMOTT MARINE CONSTRUCTION LIMITED
Reel/Frame 046144/0475 →
RELEASE OF SECURITY INTEREST Recorded May 14, 2018
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: MCDERMOTT INTERNATIONAL, INC.; MCDERMOTT, INC.; J. RAY MCDERMOTT, S.A.; SPARTEC, INC.; MCDERMOTT SUBSEA ENGINEERING, INC.; MCDERMOTT MARINE CONSTRUCTION LIMITED
Reel/Frame 046144/0628 →
SECURITY INTEREST Recorded Jul 10, 2017
From: J. RAY MCDERMOTT, S.A.
To: CREDIT AGRICOLE CORPORATE AND INVESTMENT BANK
Reel/Frame 043136/0091 →
SECURITY INTEREST Recorded Apr 16, 2014
From: MCDERMOTT INTERNATIONAL, INC.; MCDERMOTT, INC.; J. RAY MCDERMOTT, S.A.; SPARTEC, INC.; MCDERMOTT SUBSEA ENGINEERING, INC.; MCDERMOTT MARINE CONSTRUCTION LIMITED
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 032700/0142 →
RELEASE OF INTELLECTUAL PROPERTY SECURITY AGREEMENT FOR PATENT, RECORDED ON REEL 024337, FRAME 0604 Recorded Apr 16, 2014
From: CREDIT AGRICOLE CORPORATE AND INVESTMENT BANK
To: J. RAY MCDERMOTT, S.A
Reel/Frame 032705/0288 →
SECURITY INTEREST Recorded Apr 16, 2014
From: MCDERMOTT INTERNATIONAL, INC.; MCDERMOTT, INC.; J. RAY MCDERMOTT, S.A.; SPARTEC, INC.; MCDERMOTT SUBSEA ENGINEERING, INC.; MCDERMOTT MARINE CONSTRUCTION LIMITED
To: CREDIT AGRICOLE CORPORATE AND INVESTMENT BANK, AS COLLATERAL AGENT
Reel/Frame 032700/0001 →
SECURITY AGREEMENT Recorded May 5, 2010
From: J. RAY MCDERMOTT, S.A.
To: CREDIT AGRICOLE CORPORATE AND INVESTMENT BANK, AS COLLATERAL AGENT
Reel/Frame 024337/0604 →
RELEASE OF SECURITY INTEREST Recorded May 4, 2010
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: J. RAY MCDERMOTT, S.A.; MCDERMOTT MARINE CONSTRUCTION LIMITED; MENTOR SUBSEA TECHNOLOGY SERVICES, INC.; SPARTEC, INC.; MCDERMOTT SERVICOS DE CONSTRUCAO, LTDA.
Reel/Frame 024329/0139 →
AFTER-ACQUIRED INTELLECTUAL PROPERTY SECURITY AGREEMENT (THIRD SUPPLEMENTAL FILING) Recorded Jan 28, 2009
From: J. RAY MCDERMOTT, S.A.
To: CREDIT SUISSE, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 022170/0290 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 26, 2008
From: PAYNE, JACK DARRYL; LANDRY, TAIT J; GOLJENBOOM, JAMES L; ORDOYNE, RICHARD J; DUNBAR, TIMOTHY A
To: J. RAY MCDERMOTT, S.A.
Reel/Frame 021443/0822 →