초록 ▼

A plastic vessel for a pressurized fluid, having an upper end wall and a lower end wall and an intermediate part with an outer wall and internal partition walls. The internal partition walls are placed in such a way in respect of each other and the outer wall that at least two longitudinal compartme

A plastic vessel for a pressurized fluid, having an upper end wall and a lower end wall and an intermediate part with an outer wall and internal partition walls. The internal partition walls are placed in such a way in respect of each other and the outer wall that at least two longitudinal compartments for pressurized fluid are formed, which compartments are communicating with each other and run between the end walls. The vessel is non-circular. The outer wall between each pair of partition walls has a curve, with a radius adapted in such a manner that the tensions arising in the outer wall when the vessel is filled with a pressurized fluid will mainly be transformed solely to tensile stress in the partition walls which are joined to the outer wall. The partition walls are joined to the outer wall in the border lines where two such curves meet.

대표청구항 ▼

[ I claim:] [1.] A light and strong plastic vessel for a pressurized fluid, said vessel comprising an intermediate part arranged to withstand an internal pressure of at least 5 atmospheres, said intermediate part comprising an outer wall and longitudinal internal partition walls, said vessel further

[ I claim:] [1.] A light and strong plastic vessel for a pressurized fluid, said vessel comprising an intermediate part arranged to withstand an internal pressure of at least 5 atmospheres, said intermediate part comprising an outer wall and longitudinal internal partition walls, said vessel further comprising an upper end wall and a lower end wall which are both part-spherical integral with said intermediate part, which outer wall and internal partition walls are firmly connected with said upper and lower end walls and the internal partition walls are placed in such a way in respect of each other and the outer wall that at least two longitudinal compartments for pressurized fluid are formed, at least two of the compartments being in fluid communication with each other, and run between the upper and lower end walls, wherein the partition walls and outer walls are formed in one homogenous part with each other, and form two substantially identical portions of the intermediate part which portions are welded together to form said intermediate part which, together with the upper and lower end walls define a vessel which is non-circular in cross-section, with a cross-section selected from the group consisting of square, triangular, rectangular and polygonal.