WO2016023977A1 - Survival garments - Google Patents
Survival garments Download PDFInfo
- Publication number
- WO2016023977A1 WO2016023977A1 PCT/EP2015/068641 EP2015068641W WO2016023977A1 WO 2016023977 A1 WO2016023977 A1 WO 2016023977A1 EP 2015068641 W EP2015068641 W EP 2015068641W WO 2016023977 A1 WO2016023977 A1 WO 2016023977A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wearer
- layer
- inner layer
- garment according
- garment
- Prior art date
Links
- 230000004083 survival effect Effects 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 18
- 230000002706 hydrostatic effect Effects 0.000 claims abstract description 8
- 238000007654 immersion Methods 0.000 claims description 9
- 210000000707 wrist Anatomy 0.000 description 3
- 210000003423 ankle Anatomy 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/002—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with controlled internal environment
-
- 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
- B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
- B63C9/087—Body suits, i.e. substantially covering the user's body ; Immersion suits, i.e. substantially completely covering the user
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/012—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches for aquatic activities, e.g. with buoyancy aids
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/012—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches for aquatic activities, e.g. with buoyancy aids
- A41D13/0125—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches for aquatic activities, e.g. with buoyancy aids with buoyancy aids
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/12—Hygroscopic; Water retaining
- A41D31/125—Moisture handling or wicking function through layered materials
-
- 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
- B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
- B63C9/087—Body suits, i.e. substantially covering the user's body ; Immersion suits, i.e. substantially completely covering the user
- B63C9/105—Body suits, i.e. substantially covering the user's body ; Immersion suits, i.e. substantially completely covering the user having gas-filled compartments
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2400/00—Functions or special features of garments
- A41D2400/10—Heat retention or warming
Definitions
- the invention relates to survival garments
- a survival garment is worn to protect a person from getting wet when the person is immersed in water.
- Such garments can be worn for water-based sports but are often used by service personnel such as helicopter and fixed wing pilots for use in sea evacuation as well as naval personnel (both surface and submarine) and merchant mariners. They are also used by people on offshore oil and gas rigs. Examples are immersion suits and submarine escape suits.
- a survival garment commonly comprises a body portion for surrounding a torso of a wearer and arm and leg portions for receiving the arms and legs of a wearer.
- the garment fits tightly around the ankles and wrists of a wearer and may include a hood for covering the head of a wearer.
- the wrists, neck and ankles may be provided with seals so that the garment is water-tight.
- the garment is made from a waterproof material such as a rubber or plastics coated fabric.
- the body portion of the garment When the wearer is immersed in water, the wearer usually floats on his/her back.
- the body portion of the garment includes a back portion for covering a back of a wearer, and, on immersion, this portion is forced against the back of the wearer by the hydrostatic pressure of the water. This places the material of the garment in direct or very close contact with the person's body and can result in a heat path that leads to rapid cooling of the body, which is undesirable for survival.
- This area of the body is rich in blood vessels and thus the potential heat loss is significant.
- an survival garment for use in water comprising a body portion for surrounding a torso of a wearer and arm and leg portions for receiving the arms legs of a wearer, the body portion including a back portion for covering a back of a wearer, an inner layer of material being provided between the back portion and the body of a wearer, the inner layer of material spacing the body from the back portion by a layer of air, the inner layer having sufficient resistance to deformation to maintain said air layer under hydrostatic pressure when the wearer is floating on the wearer's back in water .
- an insulating layer is formed and maintained between the outer layer and the skin of a wearer when immersed in water so reducing the transfer of heat from the wearer's body to the water. This improves the survival prospects of a wearer.
- Figure 1 is a schematic plan view of a survival garment in the form of an immersion suit
- Figure 2 is a view of the suit of Figure 1 from the back showing the extent of an insulating air layer of the suit,
- Figure 3 is a schematic side view of a person wearing the suit of Figures 1 and 2 a floating in water
- Figure 4 is a section on the line X - X of Figure 3
- Figure 5 is a detail of the suit at Y in Figure 4 with the person floating in water
- Figure 6 is a similar view to Figure 5 but with a thermal liner of the suit omitted
- Figure 7 is a similar view to Figure 5 but with the suit in air.
- the immersion suit 10 comprises arm portions 11, leg portions 12, a body portion 13 and a hood 14 including a face opening 15.
- the arm portions 11 end in cuffs 16 that form a water-tight seal around the wrists of a wearer.
- the leg portions 12 end in respective foot portions 17.
- a front closure 18 can be opened to allow the suit 10 to be donned, after which the closure 18 is closed.
- the face opening 15 seals around the face of a wearer, so making the suit water-tight.
- the arm portions 11, leg portions 12, body portion 13 and hood 14 of the immersion suit 10 may be formed from panels of a woven fabric coated with a synthetic rubber or polymer such as a polyvinylchloride or polyurethane.
- the coating may be a moisture vapour permeable material such as that sold under the trade mark GO ETEX.
- the panels may be sealed together by stitching and taping, by gluing or by welding.
- the body portion 13 covers the front and the back of the torso of a wearer 23.
- the part of the body portion covering the back of the torso of a wearer 23 includes two side-by-side layers 19a, 19b of insulating material.
- the layers 19a, 19b are located on respective opposite sides of the spine of the wearer 23 and each layer 19a, 19b extends from the upper leg of the suit to a shoulder and from the spine to a respective side of the suit.
- the layers 19a, 19b are located on the inside of the suit between the suit and the body of the wearer 23.
- each insulating layer 19a, 19b is formed by a drop thread material comprising spaced layers of woven material 20a, 20b interconnected by drop threads 21 that extend at 90° to the layers 20a, 20b and having a stiffness to resist compression of the layers 20a, 20b, at least to an extent to be described below. This stiffness may be achieved by coating the threads 21 with resin.
- the woven layers 20a, 20b are preferably permeable.
- the drop threads 21 may be interwoven with the outer layers 20a, 20b.
- the insulating layers 19a, 19b may have a thickness of from 3mm to 20mm but are preferably between 3mm and 5mm. Materials of this kind are made by the company Baltex.
- a thermal liner 22 may be provided between the insulating layers 19a, 119b and the wearer's body.
- the thermal liner 22 is may be a quilted material and is preferably moisture vapour permeable.
- the liner 22 may be attached to the insulating layers 19a, 19b. Alternatively, the liner 22 may be omitted, as seen in Figure 6.
- the suit is donned by the wearer 23 who enters the water: floating on the wearer's back, as seen in Figures 4 and 5.
- the hydrostatic pressure of the water tends to compress the back of the suit but the strength of the drop threads 21 is such that this compression is resisted, so maintaining an insulating layer of air between the water and the wearer 23.
- the permeable nature of the insulating layers 19a, 19b allows water vapour to transpire through the insulating layers 19a, 19b to and through the suit so increasing the comfort of the wearer 23.
- the thermal liner 22, where provided, further reduces heat loss from the wearer 23 but does not inhibit transpiration.
- the presence of the insulating layers 19a, 19b adds buoyancy to the suit.
- the buoyancy added by the suit to the wearer's natural buoyancy is important since, if the suit is worn in emergency situations where the wearer 23 sinks into water in an enclosed space, such as a helicopter or an aircraft, excessive buoyancy from the suit can prevent or inhibit escape since this buoyancy will force the wearer upwards within the space. It has been found that, if a suit adds more than 175N of buoyancy, escape in such situations may be prevented or inhibited. Accordingly, it is preferred that the suit described above with reference to the drawings add no more than 175N of buoyancy to a wearer.
- the insulating layers 19a, 19b need not be formed by a drop thread fabric as described above with reference to the drawings. It could be formed by any material that provides and insulating layer between the water and the wearer 23 that is maintained under the hydrostatic pressure of water immersion. As described above, the insulating layers 19a, 19b extend across the back of a wearer 23. It will be appreciated that it may also extend across other areas of the suit 10 that are immersed in water in use, such as areas of the legs and/or arms.
- the suit described above is an immersion suit but the same structure may be applied to other garments such as survival suits and protection garments, for example submarine escape suits, pilot immersion protection garments and suits for people working on offshore oil and gas platforms.
- a suit of the kind described above with reference to the accompanying drawings provides good thermal insulation when the wearer is immersed in water and does not have undesirably excessive buoyancy.
- the suit When worn out of water, the suit is comfortable, particularly in hot surroundings, since, as seen in Figure 7, perspiration can transpire across the thermal liner 22, the insulating layers 19a, 19b and the panels.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2957849A CA2957849A1 (en) | 2014-08-14 | 2015-08-13 | Survival garments |
RU2017107746A RU2017107746A (en) | 2014-08-14 | 2015-08-13 | EMERGENCY RESCUE SUITS |
NO20170323A NO20170323A1 (en) | 2014-08-14 | 2017-03-06 | Survival garments |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1414441.4 | 2014-08-14 | ||
GB1414441.4A GB2529226B (en) | 2014-08-14 | 2014-08-14 | Survival garment with a back portion that is resistant to deformation |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016023977A1 true WO2016023977A1 (en) | 2016-02-18 |
Family
ID=51662429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2015/068641 WO2016023977A1 (en) | 2014-08-14 | 2015-08-13 | Survival garments |
Country Status (5)
Country | Link |
---|---|
CA (1) | CA2957849A1 (en) |
GB (1) | GB2529226B (en) |
NO (1) | NO20170323A1 (en) |
RU (1) | RU2017107746A (en) |
WO (1) | WO2016023977A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4242769A (en) * | 1978-12-14 | 1981-01-06 | Ilc Dover, A Division Of Ilc Industries, Inc. | Anti-exposure inflatable structure |
US4734072A (en) * | 1983-12-29 | 1988-03-29 | Multi-Tech Corporation | Anti-exposure suit |
GB2357235A (en) * | 1999-12-15 | 2001-06-20 | Multifabs Survival Ltd | Survival garment for cold water immersion having a laminated construction |
US20040031090A1 (en) * | 2002-08-16 | 2004-02-19 | Duncan Robert R. | Survival suit |
-
2014
- 2014-08-14 GB GB1414441.4A patent/GB2529226B/en not_active Expired - Fee Related
-
2015
- 2015-08-13 RU RU2017107746A patent/RU2017107746A/en not_active Application Discontinuation
- 2015-08-13 CA CA2957849A patent/CA2957849A1/en not_active Abandoned
- 2015-08-13 WO PCT/EP2015/068641 patent/WO2016023977A1/en active Application Filing
-
2017
- 2017-03-06 NO NO20170323A patent/NO20170323A1/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4242769A (en) * | 1978-12-14 | 1981-01-06 | Ilc Dover, A Division Of Ilc Industries, Inc. | Anti-exposure inflatable structure |
US4734072A (en) * | 1983-12-29 | 1988-03-29 | Multi-Tech Corporation | Anti-exposure suit |
GB2357235A (en) * | 1999-12-15 | 2001-06-20 | Multifabs Survival Ltd | Survival garment for cold water immersion having a laminated construction |
US20040031090A1 (en) * | 2002-08-16 | 2004-02-19 | Duncan Robert R. | Survival suit |
Also Published As
Publication number | Publication date |
---|---|
GB201414441D0 (en) | 2014-10-01 |
NO20170323A1 (en) | 2017-03-06 |
GB2529226B (en) | 2020-03-04 |
CA2957849A1 (en) | 2016-02-18 |
GB2529226A (en) | 2016-02-17 |
RU2017107746A (en) | 2018-09-14 |
RU2017107746A3 (en) | 2019-01-30 |
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