Pressurizable envelope and method

Details Pressurizable envelope and method Pressurizable envelope and method

1988-02-05

1990-03-06

Robinson, Ellis P.

Stock material or miscellaneous articles

Sheet including cover or casing

Filled with gas other than air; or under vacuum

428 71, 428 76, 428 86, 428192, 428250, 428253, 428261, 4283044, 4283184, 36 29, 36 43, 36 44, 128383, B32B 104, A43B 1320

Patent

active

049065025

ABSTRACT:
An internally pressurizable lightweight high tensile strength multi-layered envelope is provided. An outer barrier layer of elastomeric semi-permeable material is mechanically bonded at a multiplicity of cites where substantially the entire distal surfaces of a double-walled drop thread linked fabric. The composite structure defines a substantially flat thin lightweight product which is capable of withstanding very substantial pressures.

REFERENCES:
patent: 2743510 (1956-05-01), Mauney et al.
patent: 3205106 (1965-09-01), Cross
patent: 3616126 (1971-11-01), Tungseth
patent: 4183156 (1980-01-01), Rudy
patent: 4219945 (1980-09-01), Rudy
patent: 4261776 (1981-04-01), Lea et al.
patent: 4340626 (1982-07-01), Rudy
patent: 4409271 (1983-10-01), Pehr
patent: 4486479 (1984-12-01), Geppert
patent: 4519856 (1985-05-01), Lazzara
patent: 4590689 (1986-05-01), Rosenburg

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