US 11,980,911 B2
Handheld spray gun
Steven D. Becker, Blaine, MN (US); David M. Larsen, Albertville, MN (US); Steve J. Wrobel, Rogers, MN (US); Mark D. Shultz, Ham Lake, MN (US); and Robert J. Gundersen, Otsego, MN (US)
Assigned to Graco Minnesota Inc., Minneapolis, MN (US)
Filed by Graco Minnesota Inc., Minneapolis, MN (US)
Filed on Mar. 23, 2023, as Appl. No. 18/125,593.
Application 18/125,593 is a continuation of application No. 17/349,109, filed on Jun. 16, 2021, granted, now 11,623,233, issued on Apr. 11, 2023.
Application 17/349,109 is a continuation of application No. 16/257,941, filed on Jan. 25, 2019, granted, now 11,052,412, issued on Jul. 6, 2021.
Claims priority of provisional application 62/654,050, filed on Apr. 6, 2018.
Claims priority of provisional application 62/643,250, filed on Mar. 15, 2018.
Claims priority of provisional application 62/622,776, filed on Jan. 26, 2018.
Prior Publication US 2023/0234085 A1, Jul. 27, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B05B 7/24 (2006.01); B05B 7/00 (2006.01); B05B 7/08 (2006.01); B05B 7/14 (2006.01); B05B 12/00 (2018.01); B05B 15/62 (2018.01)
CPC B05B 7/2437 (2013.01) [B05B 7/0093 (2013.01); B05B 7/0815 (2013.01); B05B 7/1413 (2013.01); B05B 7/2416 (2013.01); B05B 7/2478 (2013.01); B05B 12/002 (2013.01); B05B 15/62 (2018.02)] 18 Claims
OG exemplary drawing
 
1. A handheld sprayer comprising:
a spray gun configured to receive material from a reservoir supported by the spray gun and spray the material onto a surface, the spray gun comprising:
a nozzle through which the material is emitted from the spray gun;
a trigger supported by the gun body, the trigger actuatable to open a flowpath for the material through the nozzle;
a connector supported by the spray gun and configured to attach to a hose and supply a flow of pressurized air;
an air passage extending into the spray gun, the air passage configured to receive the flow of pressurized air;
a common chamber within the spray gun, the common chamber configured to receive the flow of pressurized air from the air passage;
a first air pathway fluidly connected to the air passage to receive a first portion of the pressurized air, wherein at least a portion of the first air pathway extends through the spray gun from the common chamber, and wherein the first air pathway is configured to direct the first portion of the pressurized air to the nozzle, the first portion of the pressurized air configured to propel the material through the nozzle; and
a second air pathway fluidly connected to the air passage to receive a second portion of the pressurized air from the air passage, wherein at least a portion of the second air pathway extends through the spray gun from the common chamber, and wherein the second air pathway is configured to direct the second portion of the pressurized air to pressurize the reservoir and force the material from the reservoir and towards the nozzle for spraying; and
a pressure regulator supported by the spray gun and including a regulator spring, the pressure regulator configured to regulate a pressure of the second portion of the pressurized air.