GB2327911A - A buoyancy device - Google Patents

A buoyancy device

Info

Publication number
GB2327911A
GB2327911A GB9824733A GB9824733A GB2327911A GB 2327911 A GB2327911 A GB 2327911A GB 9824733 A GB9824733 A GB 9824733A GB 9824733 A GB9824733 A GB 9824733A GB 2327911 A GB2327911 A GB 2327911A
Authority
GB
United Kingdom
Prior art keywords
members
buoyancy
coupling member
inflatable
requires
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9824733A
Other versions
GB2327911B (en
GB9824733D0 (en
Inventor
Arthur Graham Abraham
Ian James Murray
Stephen Halden Johnson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Controlled Variable Buoyancy Systems Ltd
Original Assignee
Controlled Variable Buoyancy Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GBGB9610216.5A external-priority patent/GB9610216D0/en
Application filed by Controlled Variable Buoyancy Systems Ltd filed Critical Controlled Variable Buoyancy Systems Ltd
Priority to GB9824733A priority Critical patent/GB2327911B/en
Publication of GB9824733D0 publication Critical patent/GB9824733D0/en
Publication of GB2327911A publication Critical patent/GB2327911A/en
Application granted granted Critical
Publication of GB2327911B publication Critical patent/GB2327911B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/28—Barges or lighters
    • B63B35/285—Flexible barges, e.g. bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/34—Pontoons
    • B63B35/36—Pontoons foldable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/10—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy
    • B63B43/14—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy using outboard floating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C7/00—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects
    • B63C7/06—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects in which lifting action is generated in or adjacent to vessels or objects
    • B63C7/10—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects in which lifting action is generated in or adjacent to vessels or objects using inflatable floats external to vessels or objects

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Earth Drilling (AREA)

Abstract

A buoyancy device is described comprising a number of buoyancy members (9,9A, 9B) which are substantially equi-spaced around the circumference of a coupling member (7) and the buoyancy members (9, 9A, 9B) being coupled to the coupling member (7). At least two of the buoyancy members (9, 9A, 9B) are inflatable members (9, 9A, 9B). The inflatable members (9, 9A, 9B) are formed from a substantially flexible material such that an inflatable member (9, 9A, 9B) substantially collapses when deflated. The coupling member (7) is typically coupled to a structure, which may be a drilling rig (3) which requires to be lifted and subsequently moved, or which may be a large device such as a well head Christmas tree for an oil well which requires to be deployed in deep water.
GB9824733A 1996-05-16 1997-05-16 A buoyancy device Expired - Fee Related GB2327911B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9824733A GB2327911B (en) 1996-05-16 1997-05-16 A buoyancy device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9610216.5A GB9610216D0 (en) 1996-05-16 1996-05-16 Inflatable lifting device
GB9824733A GB2327911B (en) 1996-05-16 1997-05-16 A buoyancy device
PCT/GB1997/001350 WO1997043172A1 (en) 1996-05-16 1997-05-16 A buoyancy device

Publications (3)

Publication Number Publication Date
GB9824733D0 GB9824733D0 (en) 1999-01-06
GB2327911A true GB2327911A (en) 1999-02-10
GB2327911B GB2327911B (en) 2000-11-29

Family

ID=26309342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9824733A Expired - Fee Related GB2327911B (en) 1996-05-16 1997-05-16 A buoyancy device

Country Status (1)

Country Link
GB (1) GB2327911B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067712A (en) * 1956-09-19 1962-12-11 Container Patent Company G M B Floating tank
US3289721A (en) * 1964-05-07 1966-12-06 Albert H Benson Collapsible vessels
US3512493A (en) * 1968-04-23 1970-05-19 Us Navy Adjustable buoyancy lift device
US4063526A (en) * 1975-08-27 1977-12-20 Bridgestone Tire Company Limited Composite pneumatic marine fender
GB2120606A (en) * 1982-05-27 1983-12-07 Babcock Anlagen Ag Lifting of support framework of offshore structures
FR2654409A1 (en) * 1989-11-14 1991-05-17 Bellamy Claude Device making it possible to raise heavy and bulky objects from the bottom of water
DE9414255U1 (en) * 1994-09-02 1994-11-03 Voigtländer, Sven, 80799 München Inflatable, buoyant hollow body
FR2721579A1 (en) * 1994-06-24 1995-12-29 Zodiac Int Inflatable craft with rigid bottom

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067712A (en) * 1956-09-19 1962-12-11 Container Patent Company G M B Floating tank
US3289721A (en) * 1964-05-07 1966-12-06 Albert H Benson Collapsible vessels
US3512493A (en) * 1968-04-23 1970-05-19 Us Navy Adjustable buoyancy lift device
US4063526A (en) * 1975-08-27 1977-12-20 Bridgestone Tire Company Limited Composite pneumatic marine fender
GB2120606A (en) * 1982-05-27 1983-12-07 Babcock Anlagen Ag Lifting of support framework of offshore structures
FR2654409A1 (en) * 1989-11-14 1991-05-17 Bellamy Claude Device making it possible to raise heavy and bulky objects from the bottom of water
FR2721579A1 (en) * 1994-06-24 1995-12-29 Zodiac Int Inflatable craft with rigid bottom
DE9414255U1 (en) * 1994-09-02 1994-11-03 Voigtländer, Sven, 80799 München Inflatable, buoyant hollow body

Also Published As

Publication number Publication date
GB2327911B (en) 2000-11-29
GB9824733D0 (en) 1999-01-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040516