US 11,938,497 B2
Smart control of a spray system
Joseph W. Kieffer, Chanhassen, MN (US); Lam Huu Nguyen, Woodbury, MN (US); Jeshwanth Durga Sagar Kundem, Minneapolis, MN (US); Xiaogang Luo, Eden Prairie, MN (US); Jan Barthelmes, Salem (DE); and Nima Abbaspour, Salem (DE)
Assigned to Wagner Spray Tech Corporation, Plymouth, MN (US)
Filed by Wagner Spray Tech Corporation, Plymouth, MN (US)
Filed on Jan. 16, 2020, as Appl. No. 16/744,778.
Claims priority of provisional application 62/874,262, filed on Jul. 15, 2019.
Claims priority of provisional application 62/794,255, filed on Jan. 18, 2019.
Prior Publication US 2020/0230632 A1, Jul. 23, 2020
Int. Cl. B05B 12/08 (2006.01); B05B 11/10 (2023.01); B05B 12/12 (2006.01)
CPC B05B 12/08 (2013.01) [B05B 11/10 (2023.01); B05B 12/12 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A system comprising:
a paint spray gun comprising, a spray tip having a tip orifice;
a pump comprising a reciprocating piston configured to pump paint along a flow path to the paint spray gun, wherein the spray tip atomizes the paint in an atomized spray pattern released from the tip orifice; and
a controller configured to:
detect a reciprocation speed of the reciprocating piston;
determine a pressure of the paint along the flow path;
determine a flow rate of the paint along the flow path based on the reciprocation speed;
determine a current tip orifice size of the spray tip based on:
the flow rate and the pressure of the paint; and
a mobile device configured to:
generate a comparison result based on comparing current tip orifice size to a first tip orifice size of the spray tip;
generate a wear value indicative of an amount of wear of the spray tip based on the comparison result; and
generate an output based on the wear value.