US 12,076,785 B2
Dosing pump trigger system
Jon Tipton, Aurora, OH (US); and Andrew Horsfall, Aurora, OH (US)
Assigned to PYROTEK, INC., Spokane, WA (US)
Appl. No. 17/619,109
Filed by PYROTEK, INC., Spokane, WA (US)
PCT Filed Jun. 10, 2020, PCT No. PCT/US2020/037026
§ 371(c)(1), (2) Date Dec. 14, 2021,
PCT Pub. No. WO2020/252044, PCT Pub. Date Dec. 17, 2020.
Claims priority of provisional application 62/861,793, filed on Jun. 14, 2019.
Prior Publication US 2022/0266334 A1, Aug. 25, 2022
Int. Cl. B22D 39/02 (2006.01)
CPC B22D 39/02 (2013.01) 12 Claims
OG exemplary drawing
 
1. A molding machine comprising a cavity to be filled with molten metal; a conduit system leading to said cavity; a mechanical pump in fluid communication with a reservoir of molten metal and the conduit system; and at least one trigger mechanism in association with the conduit system, said trigger mechanism configured to determine when molten metal has reached a defined point in the conduit system; wherein a controller calculates a quantity of molten metal flow based upon the speed of the motor and wherein said controller calculates an associated time of molten metal pump operation necessary to fill a mold and wherein said trigger mechanism instructs said controller to initiate a countdown of said time.