US 12,467,461 B2
Fluid vacuum pump
Guy Erlich, West Allenhurst, NJ (US); Curtis Elliott, Washington, NJ (US); Thomas Lorys, Linden, NJ (US); Kunwar Sethi, South River, NJ (US); Daniel Camisi, Tabernacle, NJ (US); and Timothy Morales, Rumson, NJ (US)
Assigned to Water Technology, LLC, East Brunswick, NJ (US)
Filed by Water Tech, LLC, East Brunswick, NJ (US)
Filed on Jan. 8, 2021, as Appl. No. 17/144,743.
Claims priority of provisional application 62/958,434, filed on Jan. 8, 2020.
Prior Publication US 2021/0207604 A1, Jul. 8, 2021
Int. Cl. F04D 13/02 (2006.01); F04D 13/08 (2006.01); F04D 13/12 (2006.01); F04D 25/16 (2006.01); F04D 31/00 (2006.01)
CPC F04D 13/02 (2013.01) [F04D 13/08 (2013.01); F04D 13/12 (2013.01); F04D 25/16 (2013.01); F04D 31/00 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A fluid vacuum pump, comprising:
a single motor assembly further comprising one of:
a single motor; or
at least a first motor and a second motor;
a single impeller assembly further comprising at least a first impeller and a second impeller; and
a single linkage operatively connecting said single motor assembly and said single impeller assembly to transmit power from said single motor assembly to said single impeller assembly depending on whether said single impeller assembly is in a first medium or a different second medium; and
at least one of a controller and a selection device configured to selectively adjust operation of at least one of said single motor assembly, said single impeller assembly, and said single linkage depending on whether said single impeller assembly is in said first medium or said second medium;
wherein said first medium is a liquid;
wherein said entire single impeller assembly is submersible and operable in both the first and second mediums and said fluid vacuum pump is operable to pump both of the first and second mediums, either simultaneously or alternately, while the single impeller assembly is submerged in at least one of the first and second mediums.