Patent ID: 11879593
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  Y | IPC B  F

Claim 7:
8. A method of manufacturing a tank, comprising:
deep drawing an upper wall and a lower wall;
overlapping surfaces of the upper wall and the lower wall to form a metal liner that defines a cavity and has an outer surface;
joining a surface of the upper wall and a surface of the lower wall together by welding to form a weld joint;
positioning a diaphragm within the cavity and connecting to an inner diameter surface of the lower wall, the diaphragm separating the cavity into an upper portion and a lower portion;
priming an outer surface of the metal liner;
wrapping the metal liner with a fiber winding layer around the outer surface; and
applying a pressure to the metal liner from within the cavity to oppose forces applied to the outer surface of the metal liner during the step of wrapping the metal liner.