US 12,330,180 B2
Retractable cleaning nozzle
Sébastien Fontenit, La Gaubretiere (FR); Thierry Picot, Vallet (FR); and Mathieu Bachelier, Saint-Lumine-de-Clisson (FR)
Assigned to DEFINOX SAS, Clisson (FR)
Filed by Definox SAS, Clisson (FR)
Filed on Nov. 4, 2022, as Appl. No. 17/980,872.
Claims priority of application No. 21215450 (EP), filed on Dec. 17, 2021.
Prior Publication US 2023/0191439 A1, Jun. 22, 2023
Int. Cl. B05B 15/74 (2018.01); B05B 1/14 (2006.01); B08B 9/032 (2006.01); B08B 9/093 (2006.01)
CPC B05B 15/74 (2018.02) [B05B 1/14 (2013.01); B08B 9/0321 (2013.01); B08B 9/093 (2013.01); B08B 2209/032 (2013.01); B08B 2209/08 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A retractable cleaning nozzle for spray cleaning an interior surface of a pipe or a tank, the cleaning nozzle comprising:
a nozzle housing configured to be stationary mounted in a hole of the side wall of the pipe or tank and having a front side arranged to face towards the interior of the pipe or tank and a rear side arranged to face away from the interior of the pipe or tank, an inlet port configured for receiving a cleaning fluid, and a cylindrical interior bore with a central axis defining an axial direction, wherein the interior bore is open towards the front side of the nozzle housing;
a first plug movably arranged in the axial direction within the bore of the nozzle housing between a retracted position and a protruding position, wherein the first plug has a sleeve-shaped body with a front wall closing a front portion of the sleeve-shaped body, wherein the front wall of the sleeve-shaped body includes a first set of spray holes configured to eject cleaning fluid substantially in the axial direction, wherein the sleeve-shaped body of the first plug includes a second set of spray holes configured to eject cleaning fluid substantially in a radial direction perpendicular to the axial direction, wherein a front surface of the first plug is substantially flush with a front surface of the nozzle housing in the retracted position of the first plug, and wherein a front portion of the first plug, including the first and second set of spray holes, protrudes beyond the front surface of the nozzle housing in the protruding position of the first plug for enabling spray cleaning of the interior surface of the pipe or tank; and
a second plug arranged within a space defined by the sleeve-shaped body of the first plug and configured for closing a flow path from the inlet port to the first set of holes of the first plug when the first plug is located in the retracted position.