US 11,874,062 B2
Repositionable molten metal pump
Chris Vild, Chagrin Falls, OH (US); and Jon Tipton, Aurora, OH (US)
Assigned to Pyrotek, Inc., Spokane, WA (US)
Appl. No. 17/266,063
Filed by PYROTEK, INC., Spokane, WA (US)
PCT Filed Aug. 15, 2019, PCT No. PCT/US2019/046620
§ 371(c)(1), (2) Date Feb. 4, 2021,
PCT Pub. No. WO2020/037103, PCT Pub. Date Feb. 20, 2020.
Claims priority of provisional application 62/765,111, filed on Aug. 17, 2018.
Prior Publication US 2021/0310736 A1, Oct. 7, 2021
Int. Cl. F27B 3/04 (2006.01); F27D 3/14 (2006.01); F27D 27/00 (2010.01)
CPC F27B 3/045 (2013.01) [F27D 3/14 (2013.01); F27D 27/005 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A molten metal pumping system having each of a circulation function and a transfer function, said system including a molten metal pump comprised of a base having a single outlet, said base being moveable horizontally while submerged in molten metal between a first position having the single outlet engaged with a circulation passage in a furnace assembly and a second position having the single outlet engaged with a transfer passage in the furnace assembly, said circulation passage and said transfer passage being formed in a refractory wall, the circulation and transfer passages being at the same vertical height above a bottom surface of the refractory wall, said wall separating a pump well housing said molten metal pump and another chamber of the furnace assembly.