Loop bound orthotropic pressure vessel

Receptacles – Outlet or junction box type – Sectional receptacle

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220 66, 220 71, 220 72, 220414, B65D 5302

Patent

active

045468958

ABSTRACT:
An orthotropic pressure vessel (2) is provided by a cylindrical filament wound body (4) having open ends, a pair of end plates (8, 10) sealingly disposed at the open ends of the body, and one or more axial continuous endless loops (18) engaging the end plates and maintaining them in position when the vessel is filled with a fluid under pressure. Hoop to axial stress ratios greater than or equal to about 15:1, and helix angles less than or equal to about 15.degree., are provided. One end plate is stationary, and the other is axially slideable along the inner wall of the cylindrical body. Exterior and interior loop bound versions are disclosed. Various end plates and body end designs are disclosed for increased loop life, uniform force distribution for lighter and thinner end plates, and pressurized axial loading of the vessel wall.

REFERENCES:
patent: 2858992 (1958-11-01), Wentz
patent: 3011844 (1958-12-01), Maha et al.
patent: 3047191 (1962-07-01), Young
patent: 3303079 (1967-02-01), Carter
patent: 3367815 (1968-02-01), Ragettli et al.
patent: 3368708 (1968-02-01), Pflederer
patent: 3476281 (1967-12-01), Cornish et al.
patent: 3662780 (1972-05-01), Marsh
patent: 3693822 (1972-09-01), Thillet
patent: 3969812 (1976-07-01), Beck
patent: 4391301 (1983-07-01), Pflederer
"Formulas for Stress and Strain", Case 1/Chapter 12, Raymond J. Roark, McGraw-Hill, 1965.

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