EP0160045A1 - Method by submarine operations at large sea depths - Google Patents

Method by submarine operations at large sea depths

Info

Publication number
EP0160045A1
EP0160045A1 EP84903895A EP84903895A EP0160045A1 EP 0160045 A1 EP0160045 A1 EP 0160045A1 EP 84903895 A EP84903895 A EP 84903895A EP 84903895 A EP84903895 A EP 84903895A EP 0160045 A1 EP0160045 A1 EP 0160045A1
Authority
EP
European Patent Office
Prior art keywords
pressure
bell
designed
diver
diving bell
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.)
Withdrawn
Application number
EP84903895A
Other languages
German (de)
French (fr)
Inventor
Ole C. Ostlund
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.)
Oc Ostlund AS
Original Assignee
Oc Ostlund AS
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
Application filed by Oc Ostlund AS filed Critical Oc Ostlund AS
Publication of EP0160045A1 publication Critical patent/EP0160045A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/34—Diving chambers with mechanical link, e.g. cable, to a base
    • B63C11/36—Diving chambers with mechanical link, e.g. cable, to a base of closed type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/13—Hulls built to withstand hydrostatic pressure when fully submerged, e.g. submarine hulls

Definitions

  • Hie invention is related to a method concerning sub ⁇ marine operations at large sea depths.
  • the diver bell designed for a sea depth corresponding to a pressure D 1 may be used at considerably larger sea dept corresponding to a pressure D- if the internal atmosphere of the diver bell is maintained at a pressure D- in such a way the difference between D, and D ⁇ constantly is kept less than D 1 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Mechanical Means For Catching Fish (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Electric Cable Installation (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)

Abstract

Procédé permettant d'effectuer des opérations sous-marines à de grandes profondeurs en utilisant une cloche de plongée conçue et construite pour supporter une pression extérieure D1 pouvant être immergée jusqu'à une profondeur où règne une pression externe D3 considérablement plus grande que D1, de sorte qu'une pression interne plus grande D2 règne dans la cloche de plongée, de telle manière que la différence entre les pressions D3 et D2 est constamment inférieure à la pression D1 pour laquelle la cloche de plongée a été conçue. Les plongeurs se trouvant dans la cloche de plongée avant l'immersion passent par une phase de compression puis, après avoir accompli leur mission, par une phase de décompression.Method for carrying out underwater operations at great depths using a diving bell designed and constructed to withstand an external pressure D1 which can be immersed to a depth where an external pressure D3 prevails considerably greater than D1, so that a greater internal pressure D2 prevails in the diving bell, so that the difference between the pressures D3 and D2 is constantly less than the pressure D1 for which the diving bell was designed. Divers who are in the diving bell before immersion go through a compression phase then, after having accomplished their mission, through a decompression phase.

Description

Method by submarine operations at large sea depths
Hie invention is related to a method concerning sub¬ marine operations at large sea depths.
As extraction of natural occurencies increasingly ar performed at larger sea depths, the requirement for inspect and possibilities to perform works of different kind at tho sea depths, also exists. Even if the operation depths for divers by new technology and new procedures constantly is increased, there will exist need behind this area for the use of divers bells of different kinds, even if the possibil ties of remote controlled units steadily is expanded.
Diver bells built for such sea depths which are requi will be very expensive of natural reasons, as to the design very complicated and correspondingly voluminous.
By the method according to the invention part of thos disadvantages connected to design and construction of such divers bells for large sea depths, are avoided, according to the features stated in the characterizing clause of the pate claims.
The diver bell designed for a sea depth corresponding to a pressure D1 may be used at considerably larger sea dept corresponding to a pressure D- if the internal atmosphere of the diver bell is maintained at a pressure D- in such a way the difference between D, and D~ constantly is kept less than D1.
In this way the possibilities for the use of diver bells is considerably expanded.
Diving below the depths for which the diver bell is designed is connected with a need for the personnel vΛiich is to be accomodated in the diver bell during submerging, to undergo a compression in such a way that they can live at th pressure D2« Thereafter the diver bell may be submerged to the depth corresponding to the pressure D,, inspection works or other works may be performed, whereafter the diver bell may be lifted and the personnel in the diver bell will have to go through a phase of decompression.
By the method according to the invention the applicat of the diver bell is considerably expanded and principly thi is only limited by the maximum acceptable compression pressu for the personnel.

Claims

P a t e n t C l a i m
Method by submarine operations at large sea depths, characterized in the use of a diver bell designed and constructed to withstand an outer pressure D1 - to submersion to a sea depth where an outer pressure D^ exists, which is considerably larger than D.., whereby the internal pressure in the diver bell is an increased pressure D, in such a way that the difference between the pressures D3 and D2 constant is less than the pressure D1 for which the diver bell is designed, whereas the personnel in the diver bell before submersion go through a phase of compression.
EP84903895A 1983-10-27 1984-10-29 Method by submarine operations at large sea depths Withdrawn EP0160045A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO833924 1983-10-27
NO833924A NO833924L (en) 1983-10-27 1983-10-27 PROGRESS FOR UNDERWATER WORKS AT GREAT DEEP

Publications (1)

Publication Number Publication Date
EP0160045A1 true EP0160045A1 (en) 1985-11-06

Family

ID=19887321

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84903895A Withdrawn EP0160045A1 (en) 1983-10-27 1984-10-29 Method by submarine operations at large sea depths

Country Status (8)

Country Link
EP (1) EP0160045A1 (en)
AU (1) AU570518B2 (en)
BR (1) BR8407140A (en)
CA (1) CA1250187A (en)
GB (1) GB2158494B (en)
MX (1) MX161661A (en)
NO (1) NO833924L (en)
WO (1) WO1985001928A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02197492A (en) * 1989-01-25 1990-08-06 Akio Tanaka Submarine boat

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387580A (en) * 1965-10-22 1968-06-11 Harold H. Walker Submersible water craft
FR2127401A5 (en) * 1971-03-05 1972-10-13 Sea Tank Co

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8501928A1 *

Also Published As

Publication number Publication date
CA1250187A (en) 1989-02-21
BR8407140A (en) 1985-10-08
GB2158494A (en) 1985-11-13
NO833924L (en) 1985-04-29
AU3552084A (en) 1985-05-22
GB2158494B (en) 1987-09-09
GB8515987D0 (en) 1985-07-31
MX161661A (en) 1990-12-05
WO1985001928A1 (en) 1985-05-09
AU570518B2 (en) 1988-03-17

Similar Documents

Publication Publication Date Title
Hammer Underwater observations of blue‐water plankton: Logistics, techniques, and safety procedures for divers at sea 1
US4231312A (en) Flexible ocean upwelling pipe
US4674915A (en) Manipulator apparatus for gripping submerged objects
NO139060B (en) APPARATUS FOR SEATING SUBSIDIARY PIPELINES
NO162880B (en) EN-ATMOSPHERIC UNDERWATER SYSTEM FOR EXTRACTION OF NATURAL RESOURCES.
MY114447A (en) Offshore mooring device and method of using same
EP0160045A1 (en) Method by submarine operations at large sea depths
US3545215A (en) Field processing equipment for oil wells mounted at a subsea location
DE69311346D1 (en) IMPROVEMENTS ON A SEA AND UNDERWATER DEVICE
CN113671562B (en) Submarine exploration platform
CN212373626U (en) Anti-loss device for ocean equipment
Lopes et al. Ria de Aveiro F: a probable early 16th century colonial shipwreck in the Portuguese coast
Frowe A diving bell for underwater gravimeter operation
CN2297378Y (en) Buoyancy device for glass fibre rinforced plastic boat
NZ210145A (en) Using diving bell at pressures exceeding design maximum
CN117602035A (en) Dismantling method for single-point mooring system of inner rotating tower
RU2009954C1 (en) Device for raising sunken objects
NO853071L (en) HYDROSTATIC CONNECTOR FOR WATER SUBMITTED GOODS.
Delgado Archaeological Reconnaissance of the 1865 American‐Built Sub Marine Explorer at Isla San Telmo, Archipielago de las Perlas, Panama
Gould et al. History and archaeology of HM Floating Dock, Bermuda
McCarthy Report on the wreck of the Sub Marine Explorer (1865) at Isla San Telmo, Archipielago de las Perlas, Panama, and the 2006 fieldwork season.
RU2081464C1 (en) Burial sarcophagus for sunk nuclear submarine
RU1785948C (en) Method of lifting submerged wrecks
Bronson et al. Floating instrument platform
WO2021237323A1 (en) System and method for passing the cable through the shell of a floating unit and installation of portable cofferdam without diver intervention

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): FR GB NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19851001

RIN1 Information on inventor provided before grant (corrected)

Inventor name: OSTLUND, OLE C.