Receptacles – Outlet or junction box type – Sectional receptacle
Patent
1984-05-31
1985-10-15
Pollard, Steven M.
Receptacles
Outlet or junction box type
Sectional receptacle
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
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patent: 3662780 (1972-05-01), Marsh
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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.
A. O. Smith Corporation
Pollard Steven M.
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