Receptacles – Outlet or junction box type – Sectional receptacle
Patent
1976-08-20
1977-10-11
Price, William
Receptacles
Outlet or junction box type
Sectional receptacle
220 71, 220 73, 156175, 156429, 242 702, B65H 8106
Patent
active
040530817
ABSTRACT:
The fabricated pressure vessel is a filament wound structure having a connt winding angle assuring maximum filament utilization efficiency and also having polar end openings of different sizes. Fabrication of the vessel includes a first step of forming a structure having filament windings and identically-sized polar openings equal to or less than the smaller of the openings dictated by the design. Identical openings permit the constant winding angle. In the winding operation, wafer-like mats formed of dimensionally-stable material are interspersed between the filament layers at each polar end. In the final step, the polar openings then are machined to the desired size. The interspersed mats encircle the polar openings and reinforce the polar regions.
REFERENCES:
patent: 2479828 (1949-08-01), Geckler
patent: 3047191 (1962-07-01), Young
patent: 3083864 (1963-04-01), Young
patent: 3334780 (1967-08-01), Leer et al.
patent: 3360411 (1967-12-01), Ponemon
patent: 3776409 (1973-12-01), Pearson
patent: 3866792 (1975-02-01), Minke
patent: 3908851 (1975-09-01), Jacobs
Critchlow Paul N.
Man-Fu Moy Joseph
Price William
Sciascia Richard S.
The United States of America as represented by the Secretary of
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