Static structures (e.g. – buildings) – Shaped or strengthened by fluid pressure – Fluid pressure is subatmospheric
Patent
1974-07-08
1977-01-25
Purser, Ernest R.
Static structures (e.g., buildings)
Shaped or strengthened by fluid pressure
Fluid pressure is subatmospheric
52 1, 52173R, 126271, E04B 1345
Patent
active
040043800
ABSTRACT:
This invention relates to an air supported double wall structure and a method of making same, including the preparation of a first and second plastic sheet; providing said plastic sheets with a multiplicity of predeterminedly located paired holes which determines the configuration of the final inflated structure; placing the plastic sheets opposite one another; mounting a multiplicity of grommeting means, provided with segments of cords, on the external surfaces of said plastic sheets over said holes; causing said segments of cords to extend inwardly through the holes between the plastic sheets; tying together in knots the loose ends of said cord segments, of the first sheet, with the corresponding loose ends of the cord segments of the second sheet; fusing the edges of the two sheets together; and blowing air into the thusly formed enclosure. An alternate method of securely maintaining the cords between the two plastic sheets is described, in which gaskets are placed adhesively against the internal surface of the plastic sheets covering the areas immediately surrounding the paired holes; segments of one-piece cords are caused to extend between and pass outwardly through said paired holes of the first and second plastic sheets, respectively; the ends of the cord segments are tied in knots to prevent their slipping back through the holes, and a washer is placed between the knots and the underlying outer sheet surface to prevent tearing of the holes. The externally situated knots or grommeting means are superposed by air tight covering means so as to prevent escape of air through the holes, in addition to improving the stability of the knots and the outward appearance of the plastic sheets.
The double-walled structure is ideally suited for the heating of fluids, such as air or water, by solar means. This is accomplished by connecting a hose or tube, carrying fluid from an appropriate source, to a plurality of elevated points within the double-wall structure. The fluid is then heated by solar means, as it falls, by gravity, to one or more exit points.
REFERENCES:
patent: 634788 (1849-10-01), Young
patent: 1970502 (1934-08-01), Hamza
patent: 2889763 (1959-06-01), Pine
patent: 2990837 (1961-07-01), Cashman
patent: 3042050 (1962-07-01), Finlayson
patent: 3055379 (1962-09-01), Fink
patent: 3346978 (1967-10-01), Letsinger
patent: 3513828 (1970-05-01), Masters
patent: 3526199 (1970-09-01), Keats
patent: 3611648 (1971-10-01), Barnett
patent: 3848282 (1974-11-01), Viesturs
Drucker I. Morley
Purser Ernest R.
Raduazo Henry
LandOfFree
Double walled inflatable structures does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Double walled inflatable structures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double walled inflatable structures will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1472184