IP Library › Granted Patent US 8,926,225
Granted Patent B2
US 8,926,225 · App. 13/845,557 · Granted Jan 6, 2015

Leg mating unit

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Quick Facts
Patent No.
US 8,926,225
App. No.
13/845,557
Granted
Jan 6, 2015
Kind
B2
Abstract

A leg mating unit for installation of offshore structures. A housing has a ram movably mounted in the housing. Elastomeric material is received in the housing immediately below the ram. An open space below the elastomeric material is filled with a disposable, granular material such as sand. A drain valve for selectively releasing the disposable material is provided on the housing. A load absorbing ring is engaged with the ram. A stop ring is rigidly mounted on the leg of the topside structure and engages the load absorbing ring during installation of the topside structure onto its lower supporting structure. The housing is removably mounted on the lower support structure such that the leg mating unit is removable and reusable.

Claims (24)

1. A leg mating unit for the legs of a topside structure and the legs of a the support structure for the topside structure, comprising:

a. a housing mounted on the outer perimeter of at least one leg of the support structure for the topside structure;

b. a ram movably received in the housing;

c. a layer of elastomeric material received in the housing immediately below the ram;

d. a disposable material received in the housing below the elastomeric material;

e. a stop ring rigidly attached around the outer diameter of the lower end of at least one of the legs on the topside structure; and

f. a load absorbing ring that engages the ram.

2. The arrangement of claim 1 , further comprising means for selectively releasing the disposable material from the housing.

3. The leg mating unit of claim 1 , further comprising means for removably mounting the housing on the lower support structure for the topside structure.

4. The leg mating unit of claim 3 , wherein the means for removably mounting the housing on the lower support structure for the topside structure comprises bolts.

5. The leg mating unit of claim 3 , wherein the means for removably mounting the housing on the lower support structure for the topside structure comprises studs.

6. The leg mating unit of claim 3 , wherein the means for removably mounting the housing on the lower support structure for the topside structure comprises welding.

7. A leg mating unit for the legs of a topside structure and the legs of a support structure for the topside structure, comprising:

a. a housing mounted on the outer perimeter of at least one leg of the lower support structure for the topside structure;

b. means for removably mounting the housing on the lower support structure for the topside structure;

c. a ram movably received in the housing;

d. a layer of elastomeric material received in the housing immediately below the ram;

e. a disposable material received in the housing below the elastomeric material;

f. a stop ring rigidly attached around the outer diameter of the lower end of at least one of the legs on the topside structure;

g. a load absorbing ring that engages the ram; and

h. means for selectively releasing the disposable material.

8. The leg mating unit of claim 7 , wherein the means for removably mounting the housing on the lower support structure for the topside structure comprises bolts.

9. The leg mating unit of claim 7 , wherein the means for removably mounting the housing on the lower support structure for the topside structure comprises studs.

10. The leg mating unit of claim 7 , wherein the means for removably mounting the housing on the lower support structure for the topside structure comprises welding.

Assignments (10)
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: 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 →
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 →
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: CREDIT AGRICOLE CORPORATE AND INVESTMENT BANK, AS COLLATERAL AGENT
Reel/Frame 032700/0001 →
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 →