US 12,285,769 B2
Pulsating spray cleaning nozzle assembly and method
Chunling Zhao, Ellicott City, MD (US); and Aakash Deora, Jessup, MD (US)
Assigned to ABC TECHNOLOGIES INC., Toronto (CA)
Filed by DLHBOWLES, INC., Canton, OH (US)
Filed on Jul. 6, 2022, as Appl. No. 17/858,571.
Claims priority of provisional application 63/232,234, filed on Aug. 12, 2021.
Claims priority of provisional application 63/220,729, filed on Jul. 12, 2021.
Claims priority of provisional application 63/218,608, filed on Jul. 6, 2021.
Prior Publication US 2023/0010574 A1, Jan. 12, 2023
Int. Cl. B05B 1/08 (2006.01); B08B 3/02 (2006.01); B08B 3/10 (2006.01)
CPC B05B 1/08 (2013.01) [B08B 3/02 (2013.01); B08B 3/10 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A pulsed spray nozzle assembly, comprising:
a nozzle housing having a cavity, a base portion and a head portion, with an inlet positioned at the base portion that is configured to receive a flow of fluid therein;
a flow conditioning insert defining at least one fluid passage along an inlet axis that is configured to be inserted inside the cavity of the housing to communicate fluid from the inlet to an interaction region downstream from the flow conditioning insert to communicate fluid from said inlet of the housing to an interaction region along the inlet axis within the housing;
an outlet positioned at the head portion of the housing in communication with the interaction region, wherein the fluid is configured to be dispensed from the outlet having a pulsed spray pattern along an outlet axis that is generally perpendicular to the inlet axis; and
wherein said cavity includes a step that extends from an inner surface of the cavity of the housing and is positioned between the flow conditioning insert extending along the insert axis and the interaction region such that the interaction region is defined within the head portion of the housing and the cavity is defined within the base portion of the housing, wherein the head portion has a smaller outer perimeter than the base portion.