US 11,859,160 B2
Oval-shaped metal tank systems
Nathan Scott Batson, Colbert, WA (US)
Assigned to Spokane Stainless Technologies, Inc., Spokane, WA (US)
Filed by Spokane Industries, Spokane, WA (US)
Filed on Dec. 18, 2019, as Appl. No. 16/719,820.
Prior Publication US 2021/0189307 A1, Jun. 24, 2021
Int. Cl. C12G 1/02 (2006.01); C12G 1/022 (2006.01); B60K 15/03 (2006.01); B01D 5/00 (2006.01); B23K 103/04 (2006.01); B61D 5/02 (2006.01); F04B 39/06 (2006.01); F22B 37/22 (2006.01)
CPC C12G 1/0203 (2013.01) [B60K 15/03 (2013.01); B01D 5/0018 (2013.01); B01D 5/0021 (2013.01); B23K 2103/05 (2018.08); B61D 5/02 (2013.01); F04B 39/064 (2013.01); F22B 37/222 (2013.01)] 20 Claims
OG exemplary drawing
 
1. 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 steel and having a perimeter defining a second diameter larger than the first diameter of the first dome-shaped surface; and
a cone-shaped wall formed of the steel and having a top perimeter opposite a bottom perimeter,
wherein:
the top perimeter of the wall is attached to the perimeter of the first dome-shaped surface and defines a top interface void of angled corners on an inside surface of the tank,
the bottom perimeter of the wall is attached to the perimeter of the second dome-shaped surface and defines a bottom interface void of angled corners on the inside surface of tank, and
the wall attached to the first dome-shaped surface and 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.