Receptacles – High-pressure-gas tank – Multilayer container
Patent
1995-03-13
1996-01-16
Pollard, Steven M.
Receptacles
High-pressure-gas tank
Multilayer container
220 424, 138 30, F16L 5504
Patent
active
054840791
ABSTRACT:
A hydropneumatic filament-wound pressure vessel is disclosed. The vessel has first and second cup-shaped tank liners having circular open mouths which are provided with a seal and diaphragm assembly. The seal assembly includes a pocket formed by an inner wall and shelf associated with the first liner and a ledge associated with the second liner. The shelf, ledge and cylindrical wall cooperate with an inner surface of the second liner to provide an O-ring pocket. An O-ring is provided in the pocket and the O-ring defines the periphery of a flexible diaphragm which divides the interior of the liners into separate pressure chambers. A continuous filament is wound over the surface of the liners in an isotensoid pattern. Each liner has a geodesic dome surface extending between a diameter of the liner and a polar opening. The dome surface is defined by oppositely curving surfaces of revolution of a meridia joined by an inflection point. The first surface of revolution curves from the liner diameter to a first point just unto but not at said inflection point. The second surface of revolution curves from the polar opening to a second point just unto but not at said inflection point in a direction opposite the curvature of the first surface of revolution. The first and second surfaces are joined, and the inflection point is traversed by a straight line third surface of revolution closely approximating geodesic curvature through the inflection point.
REFERENCES:
patent: 2394401 (1946-02-01), Overbeke
patent: 4234016 (1980-11-01), Horino
patent: 4474215 (1984-10-01), Richter et al.
patent: 4595037 (1986-06-01), LeBreton et al.
patent: 5441584 (1995-08-01), Mathieu
Carter Thomas G.
Horner Douglas M.
Murphy James C.
Pristas Robert J.
Zimmerman Robert L.
Essef Corporation
Pollard Steven M.
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