US 12,072,034 B2
Rotary valve
Timothy Howard Neeb, Guelph (CA); and Tristan Zimmermann, Guelph (CA)
Assigned to Stormwell Inc., Guelph (CA)
Appl. No. 17/781,104
Filed by Stormwell Inc., Guelph (CA)
PCT Filed Dec. 4, 2020, PCT No. PCT/CA2020/051664
§ 371(c)(1), (2) Date May 31, 2022,
PCT Pub. No. WO2021/108915, PCT Pub. Date Jun. 10, 2021.
Claims priority of provisional application 62/943,425, filed on Dec. 4, 2019.
Prior Publication US 2022/0403944 A1, Dec. 22, 2022
Int. Cl. F16K 21/18 (2006.01); F16K 1/22 (2006.01); F16K 1/226 (2006.01); F16K 31/22 (2006.01)
CPC F16K 21/18 (2013.01) [F16K 1/221 (2013.01); F16K 1/222 (2013.01); F16K 1/2261 (2013.01); F16K 31/22 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A rotary valve for use in a liquid tank having a level of liquid comprising:
a body portion including:
a plug valve portion including a set of plugs;
a body portion divider including a set of openings for receiving the set of plugs; and
a shaft portion wherein rotation of the shaft portion controls movement of the plug valve portion with respect to the body portion divider;
float rests mounted to opposite sides of the body portion; and
a float assembly portion, the float assembly portion including a float portion and a pair of float arms connected to, and extending from, the float portion at a first end and connected to the shaft portion of the body portion at a second end;
wherein a change in the level of liquid causes movement of the pair of float arms to urge the shaft portion to rotate thereby causing the set of plugs to engage with the set of openings.