Patent ID: 11859160
Assignee: SPOKANE STAINLESS TECHNOLOGIES, INC.
Field: Chemical engineering (Chemistry)
Classification: CPC C  B  F | IPC B  C  F

Claim 9:
10. A tank comprising:
a first dome-shaped surface being formed of steel and having a perimeter defining a first diameter;
a second dome-shaped surface opposite the first dome-shaped surface, the second dome-shaped surface being formed of the steel and having a perimeter defining a second diameter larger than the first diameter of the first dome-shaped surface;
a first wall portion formed of the steel and attached to a second wall portion formed of the steel, the first wall portion attached to the second wall portion defining a seam having an elliptical shape, the first wall portion having a top perimeter and the second wall portion having a bottom perimeter opposite the top perimeter,
wherein:
the top perimeter of the first wall portion is attached to the perimeter of the first dome-shaped surface,
the bottom perimeter of the second wall portion is attached to the perimeter of the second dome-shaped surface, and
the first wall portion attached to the first dome-shaped surface and the second wall portion attached to the second dome-shaped surface defines an oval-shape void of angled corners on the inside surface of tank such that, when a product contained in the tank is displaced, the product is displaced in a torus shaped vortex between the first dome-shaped surface and the second dome-shaped surface.