Self-sealing inflatable article
View Patent ↗A self sealing inflatable article including an inflatable body portion and a neck portion having an opening, a ring member supporting the opening of the article and a plug member for sealing the opening wherein at least a portion of the body portion of the article is invaginated through the opening of the article with the plug member associated with the invaginated portion.
1. A self sealing inflatable article comprising:
an inflatable body portion;
a neck portion having an opening;
at least a pair of ring members supporting the opening of the article, wherein the pair of ring members comprises an outer ring member and an inner ring member adjacent the outer ring member, the inner ring member is provided between the neck portion and a folded back portion of the neck portion, and the outer ring member is provided outside the folded back portion, wherein the folded back portion is a section of the neck portion that is folded back over itself; and
a plug member for sealing the opening;
wherein at least a portion of the body portion of the article is invaginated through the opening of the neck portion of the article with the plug member associated with the invaginated portion.
2. The self sealing inflatable article as claimed in claim 1 , wherein the neck portion has an elongate neck portion, and the body portion having a bulbous main portion and an elongate tip portion located on the main portion, opposite the neck portion.
3. The self sealing inflatable article as claimed in claim 2 , wherein the elongate tip portion has a length approximately a length of the bulbous main portion and the elongate neck portion.
4. The self sealing inflatable article as claimed in claim 1 , wherein the opening is a single opening provided on the article at least partially occluded by the invaginated portion when invaginated and totally occluded after inflation of the article.
5. The self sealing inflatable article as claimed in any one of the preceding claims, wherein the article is formed from more than one layer of material for higher demand applications.
6. The self sealing inflatable article as claimed in claim 5 , wherein the layers are attached together.
7. The self sealing inflatable article as claimed in claim 1 , wherein the ring member is dimensionally stable against accidental passage of the plug.
8. The self sealing inflatable article as claimed in claim 1 , wherein the ring member is formed integrally with the neck portion.
9. The self sealing inflatable article as claimed in claim 1 , wherein the ring member is separate from the neck and body portions.