US 12,168,250 B2
Wash ring for chemical tanks
Patrick M. Kehn, Dallas, TX (US)
Assigned to SWIMC LLC, Cleveland, OH (US)
Filed by SWIMC LLC, Cleveland, OH (US)
Filed on Oct. 25, 2021, as Appl. No. 17/452,109.
Claims priority of provisional application 63/198,625, filed on Oct. 30, 2020.
Prior Publication US 2022/0134394 A1, May 5, 2022
Int. Cl. B08B 9/08 (2006.01)
CPC B08B 9/0804 (2013.01) [B08B 9/0813 (2013.01); B08B 2209/08 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a curved surface having an inner edge and an outer edge;
an inner wall having a first height located at the inner edge of the curved surface;
an outer wall located between the inner edge and outer edge of the curved surface and having a second height that is less than the first height;
a plurality of notches located at the outer edge of the curved surface; and
a feed pipe having an outlet located between the inner wall and outer wall.