EP0825947B1 - Sprayhood fitted on a life jacket - Google Patents
Sprayhood fitted on a life jacket Download PDFInfo
- Publication number
- EP0825947B1 EP0825947B1 EP96906865A EP96906865A EP0825947B1 EP 0825947 B1 EP0825947 B1 EP 0825947B1 EP 96906865 A EP96906865 A EP 96906865A EP 96906865 A EP96906865 A EP 96906865A EP 0825947 B1 EP0825947 B1 EP 0825947B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sprayhood
- person
- life preserver
- sheet material
- clear panel
- 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
Links
- 239000000463 material Substances 0.000 claims description 36
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 14
- 239000001569 carbon dioxide Substances 0.000 claims description 14
- 230000004888 barrier function Effects 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 210000003128 head Anatomy 0.000 description 19
- 239000002985 plastic film Substances 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 206010013082 Discomfort Diseases 0.000 description 1
- 230000006931 brain damage Effects 0.000 description 1
- 231100000874 brain damage Toxicity 0.000 description 1
- 208000029028 brain injury Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
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
- B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
- B63C9/11—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like covering the torso, e.g. harnesses
- B63C9/125—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like covering the torso, e.g. harnesses having gas-filled compartments
- B63C9/1255—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like covering the torso, e.g. harnesses having gas-filled compartments inflatable
Definitions
- This invention relates to a sprayhood.
- GB-A-2162129A discloses a sprayhood secured to a lifejacket
- the jacket comprises a shoulder/neck portion which surrounds the wearer's neck and covers the wearer's shoulders when worn.
- the jacket further comprises buoyancy chambers, some of which lie adjacent the wearer's chest and the rest of which lie adjacent the wearer's back when worn.
- the sprayhood comprising clear panels with a supporting structure of inflatable tubes is secured around its lower edges to the shoulder/neck portion of the lifejacket e.g, by heat sealing. When erected and in use, the sprayhood forms a compartment which encloses the wearer's head and neck apart from a small hole positioned directly above the crown of the wearer's head.
- a further type of conventional sprayhood fits over the head of a person wearing a life preserver e.g. a buoyancy aid, lifejacket and/or immersion suit which may incorporate buoyancy, floating in water, the person having escaped from a stricken vessel, offshore oil rig or aircraft.
- This further type of conventional sprayhood keeps water spray away from the person's face, allows oncoming rescue craft to be seen and assists in preventing water inhalation.
- a sprayhood fits close to the wearer's face and often limits the free circulation and volume of air around the wearer's head. After a short time the amount of exhaled carbon dioxide within the sprayhood may increase to a dangerous amount whereby it causes brain damage or asphyxia.
- the further type of sprayhood allows water to flow towards the wearer's face between the two lobes when facing the waves and also allows the ingress of water behind the wearer's neck when facing away from the waves,
- a sprayhood comprising sheet material including a clear panel, means to locate the sprayhood on an inflated life preserver such as a lifejacket or buoyancy aid in a position whereby when the inflated life preserver is being worn by a person floating in water the clear panel lies above the person's head and generally above the life preserver so that the person can see through the clear panel, the clear panel being provided with support means which holds the sheet material away from the person's head in use and defines a space into which the person may exhale in safety, the sheet material being provided with vent means which allows some fresh air to flow into the space and some exhaled carbon dioxide to escape from the space, characterized in that the location means includes a pocket with which the sprayhood is formed, the pocket being adapted to receive a part of the inflated life preserver so that said receipt provides an attachment between the life preserver and the sprayhood.
- an inflated life preserver such as a lifejacket or buoyancy aid in a position whereby when the inflated life preserver is being worn by a person floating in
- a sprayhood for an inflated life preserver such as a lifejacket or buoyancy aid
- sheet material including a clear panel
- the clear panel being provided with support means which holds the sheet material away from the person's head in use and defines a space into which the person may exhale in safety
- the sheet material being provided with vent means which allows some fresh air to flow into the space and some exhaled carbon dioxide to escape from the space
- location means being provided on the sprayhood for locating the sprayhood on a life preserver so that when the inflated life preserver is being worn by a person floating in water the clear panel lies above the person's head and generally above the life preserver so that the person can see through the clear panel
- the support means comprising a flexible rod secured to the sheet material for holding the sheet material away from the person's head.
- a sprayhood for an inflated life preserver such as a lifejacket or buoyancy aid
- sheet material including a clear panel
- the clear panel being provided with support means which holds the sheet material away from the person's head in use and defines a space into which the person may exhale in safety
- the sheet material being provided with vent means which allows some fresh air to flow into the space and some exhaled carbon dioxide to escape from the space
- location means being provided on the sprayhood for locating the sprayhood on the life preserver so that when the inflated life preserver is being worn by a person floating in water the clear panel lies above the person's head and generally above the life preserver so that the person can see through the clear panel
- the location means including means for holding part of an edge of the sprayhood against the life preserver.
- the sprayhood is formed with a pocket into which part of the life preserver e.g. lifejacket or buoyancy aid, locates and provides a degree of location for the sprayhood.
- the sprayhood may be provided with attachment means such as a lace, loop of elasticated tape, press studs or looped and vent means which allows some fresh air to flow into the space and some exhaled carbon dioxide to escape from the space, location means being provided for locating the life preserver on the sprayhood so that when the inflated life preserver is being worn by a person floating in water the clear panel lies above the person's head and generally above the life preserver so that the person can see through the clear panel, the location means including means for holding part of an edge of the sprayhood against the life preserver.
- a sprayhood and an inflatable life preserver such as a lifejacket or a buoyancy aid
- the sprayhood comprising sheet material including a clear panel
- the clear panel being provided with support means which holds the sheet material away from the person's head in use and defines a space into which the person may exhale in safety
- the sheet material being provided with vent means which allows some fresh air to flow into the space and some exhaled carbon dioxide to escape from the space
- the sprayhood is fittable to the life preserver and comprises location means to locate the sprayhood on the life preserver, when the life preserver is inflated, in a position whereby when the life preserver is being worn by a person floating in water the clear panel lies above the person's head and generally above the life preserver so that the person can see through the clear panel location means including means for holding part of an edge of the sprayhood against the life preserver.
- the sprayhood is formed with a pocket into which part of the life preserver e.g. lifejacket or buoyancy aid, locates and provides a degree of location for the sprayhood.
- the sprayhood may be provided with attachment means such as a lace, loop of elasticated tape, press studs or looped and barbed material (such as that sold under the trade mark VELCRO) to hold part of an edge of the sprayhood against an upper surface of the life preserver.
- the support means may comprise a flexible strut secured to the sheet material by suitable means.
- the strut may comprise a preformed nylon rod which is of generally semi-circular shape in use.
- the rod may be positioned in loops or a tube formed in or attached to the sheet material, particularly the clear panel.
- the support means may comprise an inflatable tube such that on inflation the inflated tube acts as a support strut to hold the panel away from the wearer's head and defines a space into which the wearer may exhale in safety.
- a plurality of tubes may be provided, for example five connected tubes may be provided positioned in the form of a square and one diagonal.
- the vent means may comprise one or more vent holes formed in the sheet material, particularly in the clear panel.
- the size and/or number and/or position of the or each vent hole is intended to meet the requirements of various British and European standards for sprayhoods e.g. BS EN 394.1994, 395.1994, 396.1994 and 399.1994.
- BS EN 399 Section 6.10 of Standard No. BS EN 399 which details the method of testing for the presence of carbon dioxide gas within a sprayhood fitted to a life preserver and further states the maximum permitted levels of carbon dioxide gas under controlled conditions.
- vent hole the size and/or number and/or position of the or each vent hole must be sufficient to allow exhaled carbon dioxide to escape without the amount increasing to a dangerous concentration within the air in the space, to allow an adequate supply of fresh air to enter the space and to prevent water spray entering the space and thereby interfering with the breathing or vision of the wearer.
- two vent holes are provided in the clear panel, one on each side of the wearer's head and positioned near the wearer's cheeks.
- a stolen cover may be provided in which at least part of the life preserver and the sprayhood may be stowed, ready for deployment.
- the sprayhood comprises a barrier which on deployment of the sprayhood is automatically positioned behind the wearer's head to prevent or limit the ingress of water to the space.
- the sprayhood is worn with a two-lobed life preserver, preferably the sprayhood comprises a manually deployed shield to prevent water access between the two lobes towards the wearer's face.
- the sprayhood in accordance with the first embodiment shown in Figure 1 comprises a main, generally convex panel 10, of clear polyurethane plastic sheet material 0.010" (0.254 mm) thickness.
- the bottom front part of the panel is edged with a narrow tape 11 which is attached to a further panel 12 of clear polyurethane plastic sheet edged on the three remaining sides with a narrow tape 13 and shaped to fit between the lobes of a life preserver.
- This further panel acts as a shield to prevent the access of water from the front of the wearer.
- To the top and bottom of the further panel 12 is fitted suitable loops of flexible elastic tape material 14, each loop passing around a respective lobe to locate the further panel 12 between the lobes.
- the sides of the main panel 10 are edged with a wider tape 15 on both sides. At the bottom end of the main panel sides 15 a VELCRO strip 16 is attached to locate with the top surface of the lobes of a life preserver.
- the top edge of the main panel 10 is attached to a hood 17 which acts as a pocket and passes around the side and collar section of a stolen of a life preserver.
- the bottom back edge of the hood 17 has means of attachment (not shown) for example short lengths of VELCRO for attaching the back edge to the life preserver and thus locating the hood in its correct position so that it acts as a barrier to prevent water access behind the wearer's head or neck.
- the main clear plastic panel 10 is formed with a tube 18 of the same plastic sheet material, the tube passing transversely across the sprayhood and containing a flexible nylon strut 19.
- the strut 19 takes up a generally semi-circular shape as shown, the ends of the strut 19 abutting and being held in position by the side tapes 15.
- vent holes 20 are provided in the main clear plastic panel 10.
- the vent holes 20 are sufficiently large to allow the free circulation of fresh air and exhaled carbon dioxide and positioned to prevent excessive spray from entering the space above the wearer's face and below the panel, thus interfering with the wearer's breathing and vision and causing general discomfort.
- the two vent holes are located generally one adjacent each cheek of the wearer when in use.
- the sprayhood When not in use the sprayhood may be folded in a concertina fashion and stowed so as to lie around the back of the wearer's neck and over his or her shoulders, in a suitable container. In this stowed condition the strut is still in the same semi-circular configuration but lying with the remainder of the sprayhood.
- the lifejacket would be uninflated and it is on inflation of the lifejacket that the sprayhood is pulled forward to take up the position as shown in Figure 1.
- the sprayhood 31 of the second embodiment of the invention shown in Figures 2 and 3 comprises clear polyurethane plastic sheet material, 0.010" (0.254 mm) in thickness, several pieces of which are welded together into the shape and configuration as illustrated.
- the sprayhood 31 comprises a main, generally convex panel 32, a top area 33 having a top edge 34 which is provided with attachment means e.g. laces 35 for attaching the top edge to the stolen 36 of the lifejacket 37, two side areas 38, 39 each having a side edge 40 (only one shown) which may be provided with attachment means (not shown) such as VELCRO (trade mark), press studs or further laces, a lower front panel 41 which is positioned in front of and above the two lobes 42, 43 of the lifejacket, a bottom belt portion 44 which extends under the two lobes of the lifejacket and up behind them, and two side belt portions 45, 46 which extend respectively around each side of the lifejacket i.e.
- attachment means e.g. laces 35 for attaching the top edge to the stolen 36 of the lifejacket 37
- two side areas 38, 39 each having a side edge 40 (only one shown) which may be provided with attachment means (not shown) such as VEL
- Vent holes 60, 61 are provided in the side areas 38, 39 respectively.
- the central panel 32 is surrounded by four inter-connected inflatable tubes 47, 48, 49, 50 of the same clear polyurethane material, arranged in the form of a square. Two corners 51, 52 of the square lie adjacent respective side edges, one, upper corner 53 lies centrally adjacent the top central panel 32, and the last, lower corner 54 lies centrally below the central area.
- the central panel 32 is crossed by a fifth tube 55, interconnected at one end, i.e. the upper end to the top central corner 53 of the square of tubes and at the other end, i.e. the bottom end, to the lower corner 54 of the four tubes, which lower corner lies immediately above the lower front panel.
- the top end of the diagonal tube 55 is extended slightly beyond the corner of the square and is enlarged to form a chamber 56 lying above the wearer's forehead 57 in use (see Figure 3).
- One of the tubes, in this embodiment tube 50, is provided with an oral inflation valve 58 and associated inflation tube (not shown), positioned on the underside of the sprayhood so the inflation tube lies conveniently near to the wearer's mouth 59.
- the sprayhood 31 is fitted to the lifejacket 37 before the latter is inflated by inserting the lower ends of the lobes 42, 43 of the lifejacket into the pocket formed by the bottom belt portion 44 and the two side belt portions 45, 46.
- the side edges 40 and the top edge 34 are secured to the lifejacket by the attachment means and the lifejacket is inflated by an inflation device (not shown).
- This inflation device may cause automatic inflation when the wearer enters the water).
- the wearer then inflates the five tubes 47, 48, 49, 50, 55 by the oral inflation valve 58 and the inflation tube 38. This action causes the sprayhood 31 to take up the shape and configuration as shown in Figure 3, the central panel 32 being convex and being lifted away from the wearer's face.
- the top area 33 acts as a barrier to prevent water entering the space from behind the wearer's head.
- the sprayhood tubes 47, 48, 49, 50, 55 may be inflated manually e.g. by actuating a small gas cylinder. In addition this action may cause the sprayhood to be deployed automatically from a stowage compartment on the lifejacket.
- the central panel 32, the five tubes and the two side areas are made of clear plastic sheet.
- the remaining parts are opaque and preferably brightly coloured e.g. fluorescent yellow.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Closures For Containers (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Description
- Figure 1
- shows a front perspective view from one side of a sprayhood in accordance with the first embodiment of the invention;
- Figure 2
- shows a front view of a sprayhood in accordance with the second embodiment of the invention, fitted to an inflated lifejacket; and
- Figure 3
- shows a side view of the sprayhood according to the second embodiment of the invention fitted to an inflated lifejacket worn by a standing person.
Claims (15)
- A sprayhood for an inflated life preserver such as a lifejacket or buoyancy aid comprising sheet material including a clear panel (10,32), the clear panel (10,32) being provided with support means (19,47,48,49,50,55) which holds the sheet material away from the person's head in use and defines a space into which the person may exhale in safety, the sheet material being provided with vent means (20,60,61) which allows some fresh air to flow into the space and some exhaled carbon dioxide to escape from the space, location means being provided for locating the sprayhood on the life preserver, so that when the inflated life preserver is being worn by a person floating in water the clear panel (10,32) lies above the person's head and generally above the life preserver so that the person can see through the clear panel (10,32) the location means including a pocket (17,44,45,46) adapted to receive a part of the inflated life preserver so that said receipt provides an attachment between the life preserver and the sprayhood.
- A sprayhood according to claim 1, wherein the location means include means (14,16,35) for holding part of an edge of the sprayhood against the life preserver.
- A sprayhood according to claim 1 or claim 2, wherein the support means comprises a flexible strut (19) secured to the sheet material.
- A sprayhood according to claim 3, wherein the strut comprises a preformed nylon rod (19).
- A sprayhood according to claim 1 or claim 2, wherein the support means comprises an inflatable tube (55).
- A sprayhood according to claim 5, wherein the support means comprises a plurality of inflatable tubes (55).
- A sprayhood according to any preceding claim, wherein the vent means comprises at least one vent hole (20,60,61) formed in the sheet material.
- A sprayhood according to claim 7, wherein the said at least one vent hole (20,60,61) is formed in the clear panel (10,32).
- A sprayhood according to any preceding claim, wherein a stole cover is provided into which at least part of the life preserver and the sprayhood may be stowed, ready for deployment.
- A sprayhood according to any preceding claim, comprising a barrier (17,33) which on deployment of the sprayhood is positioned behind the person's head.
- A sprayhood according to any preceding claim, wherein the sprayhood comprises a shield (12) to prevent water access towards the person's face.
- A sprayhood according to claim 6, wherein the support means comprises five connected inflatable tubes (47,48,49,50,55), four of the tubes being arranged in a square and the other tube extending diagonally across the square.
- A sprayhood for an inflated life preserver such as a lifejacket or buoyancy aid comprising sheet material including a clear panel (10,32), the clear panel (10,32) being provided with support means (19,47,48,49,50,55) which holds the sheet material away from the person's head in use and defines a space into which the person may exhale in safety, the sheet material being provided with vent means (20,60,61) which allows some fresh air to flow into the space and some exhaled carbon dioxide to escape from the space, location means (17,44,45,46) being provided on the sprayhood for locating the sprayhood on a life preserver so that when the inflated life preserver is being worn by a person floating in water the clear panel (10,32) lies above the person's head and generally above the life preserver so that the person can see through the clear panel (10,32), the support means comprising a flexible rod (19) secured to the sheet material for holding the sheet material away from the person's head.
- A sprayhood for an inflated life preserver such as a lifejacket or buoyancy aid comprising sheet material including a clear panel (10,32), the clear panel (10,32) being provided with support means (19,47,48,49,50,55) which holds the sheet material away from the person's head in use and defines a space into which the person may exhale in safety, the sheet material being provided with vent means (20,60,61) which allows some fresh air to flow into the space and some exhaled carbon dioxide to escape from the space, location means being provided on the sprayhood for locating the sprayhood on a life preserver so that when the inflated life preserver is being worn by a person floating in water the clear panel (10,32) lies above the person's head and generally above the life preserver so that the person can see through the clear panel (10,32), the location means include means (14,16,35) for holding part of an edge of the sprayhood against the life preserver.
- A sprayhood according to any one of claims 1 to 14 in combination with an inflated life preserver.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9505504 | 1995-03-18 | ||
GBGB9505504.2A GB9505504D0 (en) | 1995-03-18 | 1995-03-18 | Sprayhood |
PCT/GB1996/000617 WO1996029241A1 (en) | 1995-03-18 | 1996-03-18 | Sprayhood for a life preserver |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0825947A1 EP0825947A1 (en) | 1998-03-04 |
EP0825947B1 true EP0825947B1 (en) | 2001-05-16 |
Family
ID=10771437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96906865A Expired - Lifetime EP0825947B1 (en) | 1995-03-18 | 1996-03-18 | Sprayhood fitted on a life jacket |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0825947B1 (en) |
AU (1) | AU710021B2 (en) |
CA (1) | CA2214719A1 (en) |
DE (1) | DE69612847D1 (en) |
GB (1) | GB9505504D0 (en) |
NO (1) | NO974218L (en) |
WO (1) | WO1996029241A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5692933A (en) * | 1995-09-14 | 1997-12-02 | Simula Inc. | Low profile flotation collar |
US7798878B1 (en) * | 2007-08-28 | 2010-09-21 | Bobby Lee | Personal windscreen apparatus |
CN104097757A (en) * | 2013-04-11 | 2014-10-15 | 陈辉 | Life jacket capable of preventing person in distress from harm by seawater |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB743619A (en) * | 1953-11-03 | 1956-01-18 | Elliot Equipment Ltd | Improvements in or relating to life-jackets |
GB1223587A (en) * | 1968-11-01 | 1971-02-24 | James Charles Sainsbury | Life jacket |
GB2162129B (en) * | 1984-05-18 | 1987-08-12 | George Williams | Life jackets |
DE3538960A1 (en) * | 1985-11-02 | 1987-05-14 | Draegerwerk Ag | DIVING SAVIOR |
-
1995
- 1995-03-18 GB GBGB9505504.2A patent/GB9505504D0/en active Pending
-
1996
- 1996-03-18 AU AU50117/96A patent/AU710021B2/en not_active Ceased
- 1996-03-18 EP EP96906865A patent/EP0825947B1/en not_active Expired - Lifetime
- 1996-03-18 WO PCT/GB1996/000617 patent/WO1996029241A1/en active IP Right Grant
- 1996-03-18 DE DE69612847T patent/DE69612847D1/en not_active Expired - Lifetime
- 1996-03-18 CA CA 2214719 patent/CA2214719A1/en not_active Abandoned
-
1997
- 1997-09-12 NO NO974218A patent/NO974218L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CA2214719A1 (en) | 1996-09-26 |
NO974218D0 (en) | 1997-09-12 |
WO1996029241A1 (en) | 1996-09-26 |
GB9505504D0 (en) | 1995-05-03 |
DE69612847D1 (en) | 2001-06-21 |
EP0825947A1 (en) | 1998-03-04 |
AU5011796A (en) | 1996-10-08 |
AU710021B2 (en) | 1999-09-09 |
NO974218L (en) | 1997-09-12 |
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