US 12,013,051 B2
Pump, multi-function valve, and controller apparatus
Kerry Shawn Devinney, Cornelius, NC (US); and Douglas John Blew, Mooresville, NC (US)
Assigned to PumpOne Environmental, LLC, Cornelius, NC (US)
Filed by PumpOne Environmental, LLC, Cornelius, NC (US)
Filed on Mar. 15, 2023, as Appl. No. 18/184,152.
Application 18/184,152 is a continuation of application No. 17/157,280, filed on Jan. 25, 2021, granted, now 11,629,795.
Claims priority of provisional application 62/965,377, filed on Jan. 24, 2020.
Prior Publication US 2023/0213111 A1, Jul. 6, 2023
Int. Cl. F04F 1/06 (2006.01); F04B 49/025 (2006.01); F16K 11/07 (2006.01); F16K 15/04 (2006.01); F16K 15/18 (2006.01); F16K 31/122 (2006.01); F16K 31/22 (2006.01); F04B 49/04 (2006.01); F04B 49/06 (2006.01); F04B 49/22 (2006.01)
CPC F16K 31/1221 (2013.01) [F04B 49/025 (2013.01); F04F 1/06 (2013.01); F16K 11/0716 (2013.01); F16K 15/044 (2013.01); F16K 15/048 (2013.01); F16K 15/1843 (2021.08); F16K 31/22 (2013.01); F04B 49/04 (2013.01); F04B 49/06 (2013.01); F04B 49/22 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A multi-float assembly for a well pump, comprising:
a discharge tube for being positioned in a cavity of a well pump housing, the tube having first and second ends;
a pump head connected to the first end of the discharge tube;
a coupling connected to the second end of the discharge tube;
a bottom float check valve operably connected to the discharge tube by the coupling; and
an upper float check valve connected to a vent opening of the pump head, wherein the bottom float check valve and the upper float check valve each include a housing having a plurality of apertures formed through a wall of the housing.