US 12,392,421 B2
Overfill prevention valve
DeWayne Stanfill, Harviell, MO (US); George Andrew Borst, Kansas City, MO (US); Boris Bajic, Overland Park, KS (US); Amanuel T. Berhe, Kansas City, MO (US); Kong M. Her, Olathe, KS (US); Christopher P. Borst, Kansas City, MO (US); and Phillip H. Borst, Parkville, MO (US)
Assigned to Clay and Bailey Manufacturing Company, Kansas City, MO (US)
Filed by Clay and Bailey Manufacturing Company, Kansas City, MO (US)
Filed on Jul. 21, 2022, as Appl. No. 17/870,211.
Claims priority of provisional application 63/224,739, filed on Jul. 22, 2021.
Prior Publication US 2023/0025926 A1, Jan. 26, 2023
Int. Cl. F16K 31/22 (2006.01); F16K 33/00 (2006.01); F16K 31/28 (2006.01)
CPC F16K 31/22 (2013.01) [F16K 33/00 (2013.01); F16K 31/28 (2013.01); F16K 2200/50 (2021.08); Y10T 137/7404 (2015.04)] 20 Claims
OG exemplary drawing
 
1. An overfill prevention valve configured for use with a tank defining an interior chamber, said chamber configured to contain a fluid defining an actual fill level, said valve comprising:
an inlet element at least in part defining a fluid fill path;
a valve element shiftable between open and closed valve element positions, wherein the valve element at least substantially prevents flow along the fluid fill path when in the closed valve element position; and
a float assembly including an actuator and a repositionable float configured to be selectively fixed relative to and moveable relative to the actuator to adjust a target fill level,
said float configured to be buoyantly supported by the fluid such that the float and the actuator are shiftable in correspondence with the actual fill level,
said actuator being operably coupled with the valve element such that the valve element shifts to the closed valve element position when the actual fill level nears the target fill level and the actuator has shifted to a valve shut-off position,
said float including a plurality of discrete buoyant components,
said buoyant components being shiftable away from each other and away from the actuator to facilitate shifting of the float relative to the actuator,
said buoyant components being securable relative to each other and relative to the actuator to facilitate operation of the float assembly,
said actuator extending along an axis,
said buoyant components being radially shiftable away from each other and from the actuator.