CN108248796B - Inflatable life jacket - Google Patents
Inflatable life jacket Download PDFInfo
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- CN108248796B CN108248796B CN201810194429.7A CN201810194429A CN108248796B CN 108248796 B CN108248796 B CN 108248796B CN 201810194429 A CN201810194429 A CN 201810194429A CN 108248796 B CN108248796 B CN 108248796B
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- inflatable
- sheet
- weld
- plenum
- lifejacket
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Abstract
The invention discloses an inflatable life jacket. The inflatable lifejacket comprises a first sheet and a second sheet; the first sheet and the second sheet are welded together to form an inflatable chamber; the inflatable lifejacket further comprising an elongated plenum extending upwardly from the inflatable chamber and opening toward the neck, the elongated plenum being sealed by a generally W-shaped weld as part of the inner weld; the inflation tube is connected to the extended inflation chamber and penetrates through the extended inflation chamber to inflate the inflatable life jacket; the inflation tube having a sufficient length such that it extends to the neck opening and beyond the upper end of the extended plenum; the lifejacket also includes an indicator for indicating when the lifejacket is fully inflated. The inflatable life jacket can be used even if the life jacket is worn backwards and forwards by correctly positioning the inflation tube near the mouth of a person, and has the advantages of low cost and convenience in use.
Description
Technical Field
The invention relates to a life jacket, in particular to an inflatable life jacket which can be manually inflated through an inflation tube.
Background
The prior art discloses various inflatable life jackets. A common type of emergency life jacket comprises a generally U-shaped vest formed from a polymeric sheet material and worn around the neck of a user. Such life jackets also typically include a compressed gas cylinder (carbon dioxide) for automatically inflating the life jacket in an emergency.
Us patent u.s.5494469, filed by inventor Heath, discloses a lifejacket which also includes a mouthpiece inflation tube to blow air against the tubing (and check valve) through which the air passes into a U-shaped manifold connecting the various internal air chambers of the lifejacket. In the life jacket, each air chamber is connected to the manifold through a check valve so that if one air chamber is punctured, the other air chambers are not deflated. Although this construction is practical, it is quite expensive to manufacture.
One drawback of the prior art is that the nozzle inflation tube used to inflate the lifejacket may be difficult to find and use in an emergency. If the lifejacket is inadvertently worn back and forth, it may be difficult or impossible to use. Another problem is that in some emergency situations a large number of life jackets may be required, but prior art life jackets tend to be too expensive to produce in large quantities.
The prior art discloses an emergency inflatable lifejacket which is manually inflated by means of a mouthpiece inflation tube attached to a U-shaped manifold. However, the prior art does not disclose an inflatable lifejacket wherein the inflation tube is connected to the lifejacket by an extended inflation chamber. The present invention fulfills these needs and provides further advantages as described below.
Disclosure of Invention
The invention aims to provide an inflatable life jacket which is low in cost and convenient to use, and can be used even if the life jacket is worn backwards and forwards by correctly positioning an inflation tube near the mouth of a person, thereby realizing safe and reliable effects.
The technical solution for realizing the purpose of the invention is as follows: an inflatable lifejacket adapted to be worn around a person's neck and chest, said inflatable lifejacket comprising:
a first sheet having an outer perimeter and an inner perimeter and a second sheet having an outer perimeter and an inner perimeter; the inner periphery of the first sheet and the inner periphery of the second sheet forming a neck opening shaped to encircle a neck of a person;
an outer weld joining the outer perimeter of the first sheet and the outer perimeter of the second sheet together, and an inner weld joining the inner perimeter of the first sheet and the inner perimeter of the second sheet together; forming an inflatable compartment between the first sheet, the second sheet, the outer weld, and the inner weld;
an elongated plenum chamber extending upwardly from the inflatable compartment and opening toward the neck; and an inflation tube connected to the extended plenum for inflating the inflatable lifejacket through the extended plenum, the inflation tube having a check valve.
Further, the inflatable chamber includes a neck encircling air chamber that partially surrounds the neck of the person when worn, and a front air chamber that is positioned in front of the person when worn.
Further, a central transverse weld is included that extends at least partially through the inflatable lifejacket to separate the neck surround air chamber from the front air chamber.
Further, the elongated plenum is sealed by a W-shaped weld as part of an internal weld.
Further, the central transverse weld is separated from the elongated plenum W-weld by a space that allows air from the elongated plenum to flow into the neck surrounding plenum.
Further, the central transverse weld is separated from the outer periphery by lateral spaces that enable air from the extended plenum to flow into the front plenum.
Further, the elongated plenum is sealed by a W-shaped weld as part of an internal weld.
Further, the inflation tube has a sufficient length such that the inflation tube extends to the neck opening and beyond the upper end of the extended plenum.
Further, an indicator for indicating when the inflatable compartment is inflated to a predetermined volume capable of supporting a person floating is included.
Further, the indicator includes:
a first strap having an outer end and an inner end;
a second strap having an outer end and an inner end;
wherein each of said outer ends is connected to said first sheet material, respectively;
a fastener attached at the inner end, the two fasteners being interconnected and removably attached at the inner end of the first strap and the inner end of the second strap;
an indicator strip having a first end and a second end, the first end of the indicator strip being attached to the inner end of the first strap and the second end of the indicator strip being attached to the inner end of the second strap; the fasteners are connected together when the inflatable lifejacket is in a deflated condition and are pulled apart when the inflatable lifejacket is inflated to a properly inflated condition, such that the indicator strip becomes visible and thereby indicates that the inflatable lifejacket has been fully inflated.
Further, the elongated plenum comprises a tubular body.
Further, the elongated plenum chamber extends to a closed upper end that is positioned below a person's mouth when worn.
Further, the elongated plenum has a circular cross-section.
An inflatable lifejacket adapted to be worn around a person's neck and chest, comprising:
a first sheet having an outer perimeter and an inner perimeter and a second sheet having an outer perimeter and an inner perimeter; an inner periphery of the first sheet and an inner periphery of the second sheet forming a neck opening shaped to fit around a person's neck;
an outer weld joining the outer perimeter of the first sheet and the outer perimeter of the second sheet together; an inner weld joining the inner periphery of the first sheet and the inner periphery of the second sheet together;
forming an inflatable compartment between the first sheet, the second sheet, the outer weld, and the inner weld; the inflatable chamber comprises a neck surrounding air chamber which partially surrounds the neck of the person when worn and a front air chamber which is located in front of the person when worn;
the elongated plenum extending upwardly from the plenum and toward the neck opening, the elongated plenum being sealed by a W-shaped weld as part of an internal weld;
the inflation tube is connected into the extended inflation chamber and used for inflating the inflatable life jacket through the extended inflation chamber; the inflation tube having a check valve to prevent air in the inflatable lifejacket from escaping the extended plenum; said fill tube having a sufficient length such that said fill tube extends to said neck opening with the fill tube closer to the neck opening than the closed upper end of the extended plenum;
and an indicator for indicating when the inflatable chamber is inflated to a predetermined volume capable of supporting a person floating.
Further, the indication device includes:
a first strap having an outer end and an inner end;
a second strap having an outer end and an inner end;
wherein each of said outer ends is connected to said first sheet;
a fastener attached at the inner end, the two fasteners being interconnected and removably attached at the inner end of the first strap and the inner end of the second strap;
an indicator strip having a first end and a second end, the first end of the indicator strip being attached to the inner end of the first strap and the second end of the indicator strip being attached to the inner end of the second strap; the fasteners are connected together when the inflatable lifejacket is in a deflated condition and are pulled apart when the inflatable lifejacket is inflated to a properly inflated condition, such that the indicator strip becomes visible and thereby indicates that the inflatable lifejacket has been fully inflated.
An inflatable lifejacket adapted to be worn around a person's neck and chest, said inflatable lifejacket comprising:
a first sheet having an outer perimeter and an inner perimeter and a second sheet having an outer perimeter and an inner perimeter; the inner periphery of the first sheet and the inner periphery of the second sheet forming a neck opening shaped to encircle a neck of a person;
an outer weld joining the outer perimeter of the first sheet and the outer perimeter of the second sheet together, and an inner weld joining the inner perimeter of the first sheet and the inner perimeter of the second sheet together; forming an inflatable compartment between the first sheet, the second sheet, the outer weld, and the inner weld;
an elongated plenum chamber extending upwardly from the inflatable compartment and opening toward the neck; and an inflation tube connected to the extended plenum for inflating the inflatable lifejacket through the extended plenum, the inflation tube having a check valve;
the fill tube is of sufficient length such that the fill tube extends to the neck opening and beyond the extended upper end of the plenum chamber.
Compared with the prior art, the invention has the following remarkable advantages: (1) the inflatable lifejacket also includes an elongated plenum extending upwardly from the inflatable chamber and opening toward the neck; the inflation tube is connected to an extended inflation chamber for inflating the inflatable lifejacket, the extended inflation chamber properly positioning the inflation tube near the mouth of the person for easy use even if the lifejacket is worn back and forth; (2) the inflatable life jacket is composed of a first sheet material and a second sheet material which are welded together to form an inflatable cabin, and the manufacturing cost is low; (3) can be easily used without training in emergency, and is safe and reliable.
Other features and advantages of the present invention are further described in the following detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles and implementations of the invention.
Drawings
The accompanying drawings illustrate the present invention. In these drawings:
fig. 1 is a schematic view of an inflatable lifejacket worn by a person in an uninflated state according to one embodiment of the present invention.
Fig. 2 is a schematic view of an inflatable lifejacket with a person blowing into the inflation tube and bringing the lifejacket to a fully inflated condition in accordance with one embodiment of the present invention.
Fig. 3 is a rear view of an inflatable lifejacket according to one embodiment of the invention.
Fig. 4 is a cross-sectional view taken along line 4-4 of fig. 1.
Fig. 5 is a cross-sectional view taken along line 5-5 of fig. 2.
Reference numbers in the figures: 10 inflatable life jacket, 20 first sheet, 22 outer periphery, 24 inner periphery, 30 second sheet, 32 outer periphery, 34 inner periphery, 36 neck opening, 38 outer weld, 40 inner weld, 42 inflatable chamber, 44 neck surrounding air chamber, 46 front air chamber, 48 central transverse weld, 50 inflatable chamber, 52 weld, 54 tubular body, 56 upper end, 60 side space, 62 inflation tube, 64 check valve, 70 indicator, 72 first strap, 74 outer end, 76 inner end, 78 second strap, 79 outer end, 80 inner end, 82 indicator strip, 84 first end, 86 second end, 90 top surface, 92a fastener, 92b fastener.
Detailed Description
The above figures illustrate the present invention, an inflatable lifejacket 10, which a wearer can easily inflate the inflatable lifejacket 10 by blowing gas into the inflation tube 62. The inflatable lifejacket 10 uses a first sheet 20 and a second sheet 30 such that the inflatable lifejacket 10 is welded together in a cost effective manner. In addition, the gas tube 62 is provided on the extended inflation chamber 50, so that the user can easily find the gas tube 62 in an emergency, and does not need training, and the inflatable life jacket 10 can be inflated even if the inflatable life jacket 10 is worn upside down by mistake.
Fig. 1 is a schematic view of one embodiment of an inflatable lifejacket 10 worn by a user, the inflatable lifejacket 10 being in an uninflated state. Fig. 2 is a schematic view of a person blowing into the inflation tube 62 and inflating the inflatable lifejacket 10 to a suitable inflated state. Fig. 3 is a rear schematic view of the inflatable lifejacket 10 of fig. 2.
As shown in fig. 1-3, the inflatable lifejacket 10 is adapted to be worn around the neck and chest of a person. The inflatable lifejacket 10 comprises a first sheet 20 (shown in fig. 1 and 2) and a second sheet 30 (shown in fig. 3). First sheet 20 has a first outer perimeter 22 and a first inner perimeter 24, and likewise second sheet 30 has a second outer perimeter 32 and a second inner perimeter 34. In this embodiment, the first sheet 20 and the second sheet 30 are cut into the same (or very similar) pattern so that they may be welded together, as described in more detail below. Together, the first inner periphery 24 of the first sheet 20 and the second inner periphery 34 of the second sheet 30 form a neck opening 36. The neck opening 36 is shaped to fit the neck of a person. Although we discuss the use of a first sheet 20 and a second sheet 30, these sheets may be formed from a single sheet and joined at least in some portions and then folded to form a front and a back; or the inflatable lifejacket 10 may be formed from multiple pieces of material joined together; and such alternative embodiments should be considered within the scope of the claimed invention.
In this embodiment, an outer weld 38 joins first outer perimeter 22 of first sheet 20 and second outer perimeter 32 of second sheet 30 together. For purposes of this application, the term "weld" is defined to include any form of welding (e.g., thermal welding), as well as equivalent bonding or attachment methods known in the art (e.g., adhesives, mechanical fasteners, etc.), so long as a hermetic seal is provided.
Similarly, an inner weld 40 connects the first inner perimeter 24 of the first sheet 20 and the second inner perimeter 34 of the second sheet 30 to form an inflatable compartment 42 (shown in FIG. 2) between the first sheet 20, the second sheet 30, the outer weld 38, and the inner weld 40. In this embodiment, the inflatable chamber 42 is of a generally U-shaped configuration including a neck encircling air chamber 44 which partially surrounds the neck of the person when worn, and a front air chamber 46 which is located in front of the person when worn.
As shown in fig. 1-3, the inflatable lifejacket 10 also includes an elongated plenum 50 extending upwardly from the inflatable compartment 42 and having a neck opening 36 towards the neck. In this embodiment, the elongated plenum 50 is sealed by a generally W-shaped weld 52 as part of the inner weld 40. In this embodiment, the elongated plenum 50 includes a tubular body 54 that is tubular in shape. The tubular body 54 may have a circular cross-section. Of course, in alternative embodiments, other shapes of cross-section (e.g., square, oval, or other shapes) may be used for the tubular body 54. The elongated plenum chamber 50 extends to a closed upper end 56. The upper end 56 is located adjacent to but below the mouth of the person when the inflatable lifejacket 10 is worn.
An inflation tube 62 is mounted to the extended plenum 50 for inflating the inflatable lifejacket 10 through the extended plenum 50. The gas tube 62 of this embodiment is a semi-rigid tube fixedly attached to the closed end of the elongated plenum 50. When the elongated plenum 50 is inflated, it becomes itself semi-rigid (i.e., it is self-supporting, but can be easily bent over as desired), and similarly, the inflation tube 62 is also semi-rigid (made of a suitable flexible plastic, rubber, elastomer, or rubber-like material known in the art as such a tube), so that both together support the inflation tube 62 adjacent (and slightly below) the person's mouth for inflation, even if not trained.
The fill tube 62 has a check valve 64, the check valve 64 for preventing air in the inflatable lifejacket 10 from escaping the extended plenum 50. The fill tube 62 is also of sufficient length such that the fill tube 62 extends further into the neck opening 36 than the closed upper end 56 of the extended plenum 50. This enables the inflation tube 62 to be easily used even if the inflatable lifejacket 10 is inadvertently worn back and forth.
In the embodiment of fig. 1-3, the inflatable lifejacket 10 further includes a central transverse weld 48 extending at least partially transversely through the inflatable lifejacket 10 to separate the neck surround air chamber 44 from the front air chamber 46. The central transverse weld 48 is spaced from the generally W-shaped weld 52 of the elongated plenum 50 by a space 58 to allow air from the elongated plenum 50 to flow into the neck surrounding plenum 44. The central transverse weld 48 is spaced from the outer weld 38 by lateral spaces 60 so that air from the extended plenum 50 can flow into the front plenum 46.
Fig. 4 is a cross-sectional view taken along line 4-4 of fig. 1. Fig. 5 is a cross-sectional view taken along line 5-5 of fig. 2. In this embodiment, as shown in fig. 1, 2, 4 and 5, the inflatable lifejacket 10 further comprises an indicator 70 for indicating when the inflatable compartment 42 is inflated to a predetermined volume. The predetermined volume is adapted to assist a person in floating (without rupturing the inflatable lifejacket 10). In this embodiment, the indicator 70 is a device that indicates when inflation is complete. In this embodiment, the indicator 70 comprises a pair of straps. The method specifically comprises the following steps: indicator 70 includes a first strap 72 having a first outer end 74 and a first inner end 76, and a second strap 78 having a second outer end 79 and a second inner end 80. The first outer end 74 and the second outer end 79 are attached (e.g., sewn, welded, or otherwise secured) to the first sheet 20 at two locations. The first inner end 76 includes a first fastener 92a and the second inner end 80 includes a second fastener 92b, the first and second fasteners 92a, 92b cooperating with one another (e.g., hook and loop, such as velcro, or any other suitable fastener, such as snaps, etc.) to removably couple the first and second inner ends 76, 80. Indicator 70 may also include an indicator strip 82 having a first end 84 and a second end 86, wherein first end 84 is attached to first inner end 76 of first strap 72 and second end 86 is attached to second inner end 80 of second strap 78.
As shown in fig. 1 and 4, the first and second fasteners 92a, 92b are connected together when the inflatable lifejacket 10 is in an uninflated state. But when the inflatable lifejacket 10 is inflated to the proper inflated condition, the first and second fasteners 92a, 92b are pulled apart. As shown in fig. 2 and 5, when the first and second fasteners 92a, 92b are pulled apart, the indicator strip 82 becomes visible and indicates that the inflatable lifejacket 10 is fully inflated and should not be re-inflated. The top surface 90 of the indicator strip 82 may be colored, textured, printed or otherwise modified to give a strong visual signal. The indicator strip 82 itself may be brightly colored (or printed with a bright color) to indicate that the inflatable lifejacket 10 is inflated (e.g., red to indicate that the person should stop continuing to inflate). The indicator strip 82 may further include other options, such as printed text (e.g., instructions to stop inflating) or other indicia or elements.
In other embodiments, other means for indicating may be used. For example, a strap may completely encircle a portion of the inflatable lifejacket 10 such that inflation of the inflatable lifejacket 10 causes the strap to break, change color or wait for confirmation, pull another element, or otherwise physically change or cause a change, so as to indicate to a user that the inflatable lifejacket 10 is fully inflated at any time. In other embodiments, the pressure sensor (physical or electronic) may alert the user (e.g., audible and/or visual indication, etc.) or stop further inflation. These options are exemplary and other systems and methods for indicating that the inflatable lifejacket 10 is fully inflated are also within the scope of the invention.
The words "a" and "an," as used in this application, are defined to include one or more of the referenced item unless specifically stated otherwise. The terms "about" and "approximately" are defined to mean +/-10% unless otherwise specified. The terms "having," "including," "containing," and similar terms are defined as meaning "comprising," unless specifically stated otherwise. Furthermore, the terms used in the specification are defined herein to include similar and/or equivalent terms, and/or alternative embodiments, as would be apparent to one of ordinary skill in the art. While the present invention has been described with reference to at least one particular embodiment, it should be clearly understood that the invention is not limited to such embodiments, but rather its scope is defined by the following claims.
Claims (10)
1. An inflatable lifejacket adapted to be worn around a person's neck and chest, said inflatable lifejacket comprising:
a first sheet having an outer perimeter and an inner perimeter and a second sheet having an outer perimeter and an inner perimeter; the inner periphery of the first sheet and the inner periphery of the second sheet forming a neck opening shaped to encircle a neck of a person;
an outer weld joining the outer perimeter of the first sheet and the outer perimeter of the second sheet together, and an inner weld joining the inner perimeter of the first sheet and the inner perimeter of the second sheet together; forming an inflatable compartment between the first sheet, the second sheet, the outer weld, and the inner weld;
an elongated plenum chamber extending upwardly from the inflatable compartment and opening toward the neck; and an inflation tube connected to the extended plenum for inflating the inflatable lifejacket through the extended plenum, the inflation tube having a check valve; said inflation tube having a sufficient length such that said inflation tube extends into said neck opening and beyond the upper end of said extended plenum;
the inflatable lifejacket further comprising an indicator for indicating when said inflatable compartment is inflated to a predetermined volume, said predetermined volume being capable of supporting a person floating; the indicator includes:
a first strap having an outer end and an inner end;
a second strap having an outer end and an inner end;
wherein each of said outer ends is connected to said first sheet material, respectively;
a fastener attached at the inner end, the two fasteners being interconnected and removably attached at the inner end of the first strap and the inner end of the second strap;
an indicator strip having a first end and a second end, the first end of the indicator strip being attached to the inner end of the first strap and the second end of the indicator strip being attached to the inner end of the second strap; the fasteners are connected together when the inflatable lifejacket is in a deflated state and are pulled apart when the inflatable lifejacket is inflated to a properly inflated state, such that the indicator strip becomes visible and thereby indicates that the inflatable lifejacket has been fully inflated.
2. An inflatable lifejacket according to claim 1 wherein the inflatable compartment includes a neck encircling air chamber which partially surrounds the neck of the person when worn and a front air chamber which is located in front of the person when worn.
3. The inflatable lifejacket of claim 2, further comprising a central transverse weld extending at least partially through the inflatable lifejacket to separate the neck surround air chamber from the front air chamber.
4. An inflatable lifejacket according to claim 3 wherein the extended plenum is sealed by a W-shaped weld as part of the internal weld.
5. An inflatable lifejacket according to claim 4 wherein the central transverse weld is separated from the extended plenum W weld by a space which allows air from the extended plenum to flow into the neck surrounding plenum.
6. An inflatable lifejacket according to claim 5 wherein the central transverse weld is separated from the outer periphery by side spaces which enable air from an extended plenum chamber to flow into the front plenum chamber.
7. An inflatable lifejacket according to claim 1 wherein the extended plenum is sealed by a W-shaped weld as part of the internal weld.
8. An inflatable lifejacket according to claim 1 wherein the elongate plenum comprises a tubular body.
9. An inflatable lifejacket according to claim 8 wherein the elongate plenum chamber extends to a closed upper end which, when worn, is located beneath the mouth of a person.
10. An inflatable lifejacket according to claim 9 wherein the elongated plenum chamber has a circular cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810194429.7A CN108248796B (en) | 2018-03-09 | 2018-03-09 | Inflatable life jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810194429.7A CN108248796B (en) | 2018-03-09 | 2018-03-09 | Inflatable life jacket |
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| Publication Number | Publication Date |
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| CN108248796A CN108248796A (en) | 2018-07-06 |
| CN108248796B true CN108248796B (en) | 2020-01-17 |
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| CN201810194429.7A Active CN108248796B (en) | 2018-03-09 | 2018-03-09 | Inflatable life jacket |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102215939B1 (en) * | 2019-10-18 | 2021-02-16 | 이명자 | Life jacket, air blowing member and method for combining there of |
| GB2591299B (en) * | 2020-01-27 | 2024-01-31 | Survitec Group Ltd | Life preserver |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1580439A (en) * | 1924-10-13 | 1926-04-13 | Meilland Andrew | Life-preserving suit |
| GB1527747A (en) * | 1974-12-23 | 1978-10-11 | American Safety Equip | Inflatable life vest |
| US5101818A (en) * | 1990-08-24 | 1992-04-07 | Diving Innovations | Snorkeling system |
| US5494469A (en) * | 1994-09-30 | 1996-02-27 | The United States Of America As Represented By The Secretary Of The Navy | Inflatable life vest |
| CN101397051A (en) * | 2007-09-24 | 2009-04-01 | 李魏良 | Inflatable floating-assisted cloth and preparation thereof |
| CN201501522U (en) * | 2009-09-27 | 2010-06-09 | 南通市海鸥救生防护用品有限公司 | Externally carried inflation life vest |
| CN204642115U (en) * | 2015-05-28 | 2015-09-16 | 苏州大学 | Inflated life-saving jacket |
| CN208393598U (en) * | 2018-03-09 | 2019-01-18 | 陈俊杰 | Inflatable life-saving clothing |
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2018
- 2018-03-09 CN CN201810194429.7A patent/CN108248796B/en active Active
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