US3843983A - Arrangement related to inflatable life rafts - Google Patents

Arrangement related to inflatable life rafts Download PDF

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Publication number
US3843983A
US3843983A US00286942A US28694272A US3843983A US 3843983 A US3843983 A US 3843983A US 00286942 A US00286942 A US 00286942A US 28694272 A US28694272 A US 28694272A US 3843983 A US3843983 A US 3843983A
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US
United States
Prior art keywords
raft
canopies
elements
floating body
floor
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.)
Expired - Lifetime
Application number
US00286942A
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English (en)
Inventor
Walter Tangen
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.)
GEWAKO SA
Original Assignee
GEWAKO SA
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Filing date
Publication date
Application filed by GEWAKO SA filed Critical GEWAKO SA
Application granted granted Critical
Publication of US3843983A publication Critical patent/US3843983A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B63C9/00—Life-saving in water
    • B63C9/02—Lifeboats, life-rafts or the like, specially adapted for life-saving
    • 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
    • B63C9/00—Life-saving in water
    • B63C9/02—Lifeboats, life-rafts or the like, specially adapted for life-saving
    • B63C9/04—Life-rafts
    • B63C2009/042—Life-rafts inflatable
    • 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
    • B63C9/00—Life-saving in water
    • B63C9/02—Lifeboats, life-rafts or the like, specially adapted for life-saving
    • B63C9/04—Life-rafts
    • B63C2009/044—Life-rafts covered
    • B63C2009/046—Life-rafts covered reversible, i.e. deployable in upright or upside down positions

Definitions

  • a life raft of the inflatable type comprising a circular shaped floating body of elastic material which may be inflated by a source of compressed air and in which a floor of elastic material is stretched over the inner opening of the circular body.
  • the raft is provided with a canopy which is arranged on both sides of the raft and which is adapted to be automatically erected by means of elements attached to the floating body, the arrangement being such that when the walls of the floating body are stretched by the compressed air, the movement of the walls is transferred to the aforesaid elements which thereby erect the canopies on both sides of the raft.
  • the invention relates to inflatable life rafts of the kind which comprise a normally circular shaped body of elastic canvas constructed as one or several tubeshaped ducts which are inflatable, whereby the said body serves as a float for the life raft which is formed by stretching a floor constituted by a canvas, a net or the .like over the inner opening of the circular body.
  • life rafts shall be provided with a protection canopy for the shipwrecked crew, and that the canopy is to be self-erecting since the shipwrecked crew seldom have enough power to erect or rig such a canopy.
  • Another requirement for life rafts is that they are to be double-sided, i.e., constructed such that they are identical on bothsides, and it is thus without significance which side is to face upwards when the raft is thrown into the water or is floating up form a sinking ship.
  • rafts of the rigid or semi-rigid type wherein the float comprises air-filled containers, cork, foam plastic or other suitable floating material held together by means of a rigid framework or by the assemblage.
  • rafts have a rigidity, and a stability which makes possible an arrangement of self-erecting spring hoops or the like for the rigging of canopies on both sides of the raft.
  • the canopy above the water then serves as protection for the shipwrecked crew, while the canopy under water constitutes an efficient stabilizer and a sea anchor.
  • the inflatable rafts have therefore until now been provided with a canopy on one side, whereas it has been necessary to place them on the surface of the sea with the right side up. If this action is unsuccessful, or wind and sea throw the raft around before the crew comes on board and forms a ballast, it is according to experience extremely difficult to turn such a raft into the correct upright position. It requires very good swimmers and great skill in order to succeed. In addition, the ships crew have no opportunity to train themselves with such rafts. The rafts are kept in closed containers, and these are sealed by the marine survey as a security for the raft being in order and packed according to the regulations.
  • FIG. 1 shows a raft according to the invention in its inflated condition and seen in the cross-sectional view
  • PK]. 2 shows the raft as seen from the side.
  • the circular floating body is generally indicated by l, and is in the chosen example made of two jointed, encircling tubes or ducts l, l" of elastic material, e.g., plastic canvas. These are connected to the flask 7 with compressed air by means of tubes (not shown) and are in a known manner automatically inflated when the raft is launched.
  • a floor 8 made of air-filled ducts is arranged across the inside of the floating body.
  • the floor 8 is not directly fastened to the floating body I but is hanging in it such that it remains hanging at the level of the lower part of the floating body, i.e., substantially under the horizontal plane of symmetry or midpoint. Regardless of the side of the raft which faces upwardly, the floor will hence be hanging as shown in FIG. 1, and the floating body 1 forms a protective wall which is generally speaking projecting above said floor.
  • This low position of the floor which indeed carries the weight of the shipwrecked crew, will at the same time give the raft very good stability.
  • the suspension be made by a watertight canvas 9 which extends about the full inside of the floating body to thereby effect a watertight, closed-off compartment for the shipwrecked crew.
  • a covering canopy ll, 11 is arranged on both sides of the raft.
  • the canopy is in the example shown carried by arms or hoops 6, 6 of a stiff material.
  • the lower ends of the arms 6 are connected to the floating body by attachment to reinforced sections 6". These are also elastic but with such an adjustment rigidity that, when the floating body 1 is inflated, the arms 6 will follow the stretching movement of the wall of the floating body and thus rise to a substantially vertical position, as shown in the drawings.
  • the arms 6 When the raft is in a noninflated condition the arms 6 will on the other hand lie turned down to a horizontal position, and the canopy 11, ll lies folded up over them as well as over the folded-up raft.
  • the complete raft may constitute a flat package where the only rigid parts, the arms 6 or the hoops 6, 6' lie pushed into each other on both sides of the fixed equipment which is attached to the floor 8.
  • the equipment in the example shown comprises a centrally arranged, watertight container 4 with lids 4' on both sides.
  • This container contains emergency foodsupplies, signal equipment, medicines etc., and the usual equipment for lifeboats and rafts.
  • a small manually driven pump 3 e.g., of the bellows type, which by tube connections 12 can convey seawater up to a spraying jet in order to spray the canopy canvas with water for cooling of the inside of the canopy if the shipwreck oc curs, for example, in tropical waters.
  • rigid supporting rods 10 which, in a stowage position of the raft, lie inside the package in its longitudinal direction but which, when the canopies are inflated and the is on board, may be rigged for lifting of the mid-section of the ceiling of the canopy and thus provide better height of the dip inside the raft as well as good run-off of rain or head water.
  • the roof of the canopy will hang down as shown by phantom lines in FIG. 1 and may then serve for the collection of rainwater.
  • the raft is equipped with normal grab-lines 5. It also has the standard radar-refelctor and reflecting-tape.
  • the canopy canvas is given an easily observable color, preferably a fluorizing one.
  • circular floating body as used in the present disclosure is not restricted to any particular ring form or circular shape, since the horizontal planprofile may extend from square to polygonal, oval or round.
  • This floating body may likewise be comprised of an arbitrary number of cylindrical tubes or ducts of elastic material, and these may possibly be divided into a suitable number of chambers.
  • the elements disclosed herein as being attached to the floating body need not necessarily comprise armed and/or hoops, but may also comprise flexible couplings such as Nurnberg scissors, telescopic tubes or other constructions which serve the same object as the invention.
  • a raft of the elastic inflatable type will have a safe stability before the shipwrecked crew comes on board and forms a ballast. This is achieved in that the canopies are raised by means which instead of buoyancy have a downward acting force. in addition, the arrangement of the raft floor 8 is such that it automatically assumes a low position and, since the floor carries the fixed installations such as air-flask, emergency container etc., the stability will be further ensured.
  • An inflatable life raft arrangement comprising, a circular-shaped floating body of elastic material capable of being inflated from a source of compressed air, a floor of elastic material extending within the inner opening of said circular body, first and second canopies secured along opposite sides of said floating body, elongated rigid elements fixedly attached to the outer wall of said body at said opposite sides thereof beneath said canopies, each of said elements being attached at one end thereof outboard of the vertical centerline of said body, whereby said elements and said canopies collapse inwardly of said body upon deflation thereof, and whereby said canopies are erected on both said sides of said body upon inflation thereof as each of said rigid elements are moved from the inwardly collapsed position to a position slanting slightly inwardly of said body from said vertical centerline.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Tents Or Canopies (AREA)
  • Manufacture And Refinement Of Metals (AREA)
US00286942A 1972-06-28 1972-09-07 Arrangement related to inflatable life rafts Expired - Lifetime US3843983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO2323/72A NO130719C (es) 1972-06-28 1972-06-28

Publications (1)

Publication Number Publication Date
US3843983A true US3843983A (en) 1974-10-29

Family

ID=19878768

Family Applications (1)

Application Number Title Priority Date Filing Date
US00286942A Expired - Lifetime US3843983A (en) 1972-06-28 1972-09-07 Arrangement related to inflatable life rafts

Country Status (17)

Country Link
US (1) US3843983A (es)
JP (1) JPS4936094A (es)
AR (1) AR199090A1 (es)
AU (1) AU466437B2 (es)
BE (1) BE788775A (es)
CA (1) CA971434A (es)
DE (1) DE2246884C2 (es)
ES (1) ES407041A1 (es)
FI (1) FI52447C (es)
FR (1) FR2152105A5 (es)
GB (1) GB1356715A (es)
IT (1) IT967238B (es)
NL (1) NL7213003A (es)
NO (1) NO130719C (es)
PL (1) PL74648B1 (es)
SE (1) SE373801B (es)
SU (1) SU579889A3 (es)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614500A (en) * 1983-09-07 1986-09-30 The Garrett Corporation Flotation platform
US5397258A (en) * 1993-12-30 1995-03-14 Switlik Parachute Company, Inc. Polygonally shaped inflatable raft apparatus
US5468167A (en) * 1994-07-29 1995-11-21 Givens; James A. Life raft utility tether
US5950555A (en) * 1997-09-26 1999-09-14 Damask; Douglas M. Bilge pump for a personal watercraft
AU728322B2 (en) * 1997-06-05 2001-01-04 Survitec Group Limited Liferaft
US6206743B1 (en) 1996-06-13 2001-03-27 Wardle Storeys (Safety & Survival Equipment) Limited Liferaft
US6341378B1 (en) 2000-06-02 2002-01-29 Frank L. Pietsch Raincoat
US6375529B1 (en) 2001-07-03 2002-04-23 Marisa Infante Reversible life raft and method therefor
US6623322B1 (en) 2002-05-08 2003-09-23 Steve A. Lesniak Inflatable dinghy cover
US8662020B1 (en) * 2007-09-12 2014-03-04 Peter Vincent Tecco Animal carrier
US20140087610A1 (en) * 2011-05-24 2014-03-27 Viking Life-Saving Equipment A/S Inflatable unit for a life-saving equipment
CN103806489A (zh) * 2007-03-20 2014-05-21 托马斯·J·克里扎克 用于在水生环境中收回人工制品和根除入侵物种的设备、系统和方法
US8770893B2 (en) * 2006-03-20 2014-07-08 Thomas J. Kryzak Apparatus, system and method for recovery of artifacts and eradication of invasive species in aquatic environments
US10131440B2 (en) 2016-09-16 2018-11-20 Goodrich Corporation Inflatable evacuation system with canopy support
CN109278959A (zh) * 2018-09-29 2019-01-29 深圳市中天潜水装备有限公司 一种单人救生筏
US10822827B1 (en) * 2019-09-09 2020-11-03 Ray Yan Multifunctional racks, sunshades and tents on floating devices
US11148770B2 (en) * 2019-07-11 2021-10-19 Goodrich Corporation Life raft canopy with spring wire frame
US20220106021A1 (en) * 2019-09-29 2022-04-07 Ichiro Sakamoto Aquatic play equipment

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5733158A (en) * 1996-11-12 1998-03-31 Dunlop-Beaufort Canada Ltd. Inflatable reversible life raft
NO310606B1 (no) * 1998-12-02 2001-07-30 Umoe Schat Harding As Livbåtsystem
JP6194066B1 (ja) * 2016-06-03 2017-09-06 計二 馬場 水害避難用救命艇

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764766A (en) * 1953-07-22 1956-10-02 Garrett Corp Inflatable life raft
US2804633A (en) * 1954-07-15 1957-09-03 Garrett Corp Inflatable life raft comprising improved canopy and supporting means therefor
US3123843A (en) * 1964-03-10 Tangen
US3222700A (en) * 1964-06-01 1965-12-14 Frankenstein & Sons Manchester Inflatable liferafts

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE498563C (de) * 1930-08-29 Gustav Winkler Fa Schlauchboot mit durchhaengendem, kastenfoermigem, wasserundurchlaessigem Behaelter
SE323904B (es) * 1966-05-26 1970-05-11 Scheibert Dt Schlauchbootfab
DE1919227C3 (de) * 1969-04-16 1981-02-12 Walter Poole Dorset Tangen (Ver. Koenigreich) Lebensrettungsfloß für Schiffe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123843A (en) * 1964-03-10 Tangen
US2764766A (en) * 1953-07-22 1956-10-02 Garrett Corp Inflatable life raft
US2804633A (en) * 1954-07-15 1957-09-03 Garrett Corp Inflatable life raft comprising improved canopy and supporting means therefor
US3222700A (en) * 1964-06-01 1965-12-14 Frankenstein & Sons Manchester Inflatable liferafts

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614500A (en) * 1983-09-07 1986-09-30 The Garrett Corporation Flotation platform
US5397258A (en) * 1993-12-30 1995-03-14 Switlik Parachute Company, Inc. Polygonally shaped inflatable raft apparatus
US5468167A (en) * 1994-07-29 1995-11-21 Givens; James A. Life raft utility tether
US6206743B1 (en) 1996-06-13 2001-03-27 Wardle Storeys (Safety & Survival Equipment) Limited Liferaft
AU728322B2 (en) * 1997-06-05 2001-01-04 Survitec Group Limited Liferaft
US5950555A (en) * 1997-09-26 1999-09-14 Damask; Douglas M. Bilge pump for a personal watercraft
US6341378B1 (en) 2000-06-02 2002-01-29 Frank L. Pietsch Raincoat
US6375529B1 (en) 2001-07-03 2002-04-23 Marisa Infante Reversible life raft and method therefor
US6623322B1 (en) 2002-05-08 2003-09-23 Steve A. Lesniak Inflatable dinghy cover
US8770893B2 (en) * 2006-03-20 2014-07-08 Thomas J. Kryzak Apparatus, system and method for recovery of artifacts and eradication of invasive species in aquatic environments
US9332747B2 (en) 2006-03-20 2016-05-10 Thomas J. Kryzak Apparatus, system and method for recovery of artifacts and eradication of invasive species in aquatic environments
CN103806489B (zh) * 2007-03-20 2017-07-07 托马斯·J·克里扎克 用于在水生环境中收回人工制品和根除入侵物种的设备、系统和方法
CN103806489A (zh) * 2007-03-20 2014-05-21 托马斯·J·克里扎克 用于在水生环境中收回人工制品和根除入侵物种的设备、系统和方法
US8662020B1 (en) * 2007-09-12 2014-03-04 Peter Vincent Tecco Animal carrier
US9067656B2 (en) * 2011-05-24 2015-06-30 Viking Life Saving Equipment A/S Inflatable unit for a life-saving equipment
US20140087610A1 (en) * 2011-05-24 2014-03-27 Viking Life-Saving Equipment A/S Inflatable unit for a life-saving equipment
US10131440B2 (en) 2016-09-16 2018-11-20 Goodrich Corporation Inflatable evacuation system with canopy support
CN109278959A (zh) * 2018-09-29 2019-01-29 深圳市中天潜水装备有限公司 一种单人救生筏
US11148770B2 (en) * 2019-07-11 2021-10-19 Goodrich Corporation Life raft canopy with spring wire frame
US11572142B2 (en) 2019-07-11 2023-02-07 Goodrich Corporation Life raft canopy with spring wire frame
US10822827B1 (en) * 2019-09-09 2020-11-03 Ray Yan Multifunctional racks, sunshades and tents on floating devices
US20220106021A1 (en) * 2019-09-29 2022-04-07 Ichiro Sakamoto Aquatic play equipment

Also Published As

Publication number Publication date
AR199090A1 (es) 1974-08-08
FI52447B (es) 1977-05-31
FR2152105A5 (es) 1973-04-20
GB1356715A (en) 1974-06-12
AU466437B2 (en) 1975-10-30
DE2246884A1 (de) 1974-01-17
PL74648B1 (es) 1974-12-31
DE2246884C2 (de) 1982-09-02
ES407041A1 (es) 1975-10-01
NO130719C (es) 1975-01-29
CA971434A (en) 1975-07-22
AU4677372A (en) 1974-03-28
FI52447C (fi) 1977-09-12
NO130719B (es) 1974-10-21
NL7213003A (es) 1974-01-02
SE373801B (es) 1975-02-17
JPS4936094A (es) 1974-04-03
BE788775A (fr) 1973-01-02
IT967238B (it) 1974-02-28
SU579889A3 (ru) 1977-11-05

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