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US 4,398,646 AGranted
Multi-layered vessel with discontinuity neutralizing area
AssigneeHahn & Clay
InventorRaymond E. Pechacek
Life of this patent
Estimating the term…
Abstract
A multi-layered vessel which includes a multi-layered generally cylindrical shell and at least one multi-layered generally hemispherical head of less thickness than the shell. The head has a main section and discontinuity neutralizing portion adjacent the shell. Each layer of the head main section and the discontinuity neutralizing portion have gores with substantially equal radius of curvature. The discontinuity neutralizing portion gores have a different center of curvature than the gores of the head main section.
Claims8
A multi-layered vessel, comprising:
- a multi-layered generally cylindrical shell;
- at least one multi-layered generally hemispherical head mounted to an end of said shell;
- said shell being thicker than said head;
- said head having a main section and a discontinuity neutralizing portion adjacent said end of said shell;
- each layer of said head main section and said discontinuity neutralizing portion having gores with substantially equal radius of curvature in each layer;
- and
- said gores of said discontinuity neutralizing portion having a different center of curvature than the gores of said head main section.
4 more elements
Dependencies are inferred from the claim text.