Air-bubble cushion, mattress and water float items

Buoys – rafts – and aquatic devices – Body supporting buoyant device


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441136, B63C 908




Cushions, mattresses and water float articles for body comfort, water safety and recreational use. The articles of the present invention include a light weight core structure fabricated of at least two stacked layers of two-ply laminated sheet plastic material encapsulating between the plys of each layer a multiplicity of uniformly arranged, separated and sealed air bubbles. The core structure is encased and sealed in a water impermeable cover of flexible sheet plastic material with the cover material maintaining the shape of the article.

patent: 2950489 (1960-08-01), Pattison
patent: 3545017 (1970-12-01), Cohn
patent: 3852965 (1974-12-01), Rudd
patent: 4287250 (1981-09-01), Rudy
patent: 4490071 (1984-12-01), Morrisroe


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