US 11,833,379 B2
Fire protection floor nozzle, systems, and methods for floor nozzle spray systems
Shawn J. Feenstra, Caledonia, MI (US); and Vinh Bao Hoa, Kentwood, MI (US)
Assigned to Minimax Viking Research & Development GmbH, Bad Oldesloe (DE)
Appl. No. 18/030,109
Filed by Minimax Viking Research & Development GmbH, Bad Oldesloe (DE)
PCT Filed Sep. 14, 2022, PCT No. PCT/US2022/043505
§ 371(c)(1), (2) Date Apr. 4, 2023,
PCT Pub. No. WO2023/043822, PCT Pub. Date Mar. 23, 2023.
Claims priority of provisional application 63/244,761, filed on Sep. 16, 2021.
Claims priority of provisional application 63/244,758, filed on Sep. 16, 2021.
Claims priority of provisional application 63/244,765, filed on Sep. 16, 2021.
Prior Publication US 2023/0285787 A1, Sep. 14, 2023
Int. Cl. A62C 31/05 (2006.01); A62C 35/68 (2006.01)
CPC A62C 35/68 (2013.01) [A62C 31/05 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A floor nozzle for a floor fire suppressant system, the floor nozzle comprising:
a body having a mounting portion configured to couple to a fire suppressant solution supply pipe and a body flange portion axially spaced from the mounting portion with an internal transverse passage extending therebetween along a central nozzle axis, the transverse passage defining an inlet opening and an outlet opening with the body flange portion extending around the outlet opening, the body flange portion including an upper support surface; and
a deflector supported on the upper support surface of the body flange portion, the deflector having a deflector flange including an upper surface disposed normal to the central nozzle axis, a lower surface angled with respect to the upper surface and an outer perimeter between the upper surface and the lower surface circumscribing the central nozzle axis to define a linear frustoconical portion of the deflector that extends radially inward at a radial length from the outer perimeter, the deflector flange including a plurality of projecting members each having a radial inner portion and a radial outer portion, the plurality of projecting members extending from the lower surface of the deflector flange in supporting contact with the support surface of the body flange portion, the support surface of the body flange portion being angled with respect to the upper surface of the deflector flange, the plurality of projecting members being circumferentially spaced around the outlet opening to form a plurality of passageways therebetween each having a converging inlet portion and a diverging outlet portion, the outlet opening and passageways through which fire suppressant solution flows and exits as a fire suppressant foam to form a generally lateral radial pattern for delivering the fire suppressant foam to a protected area, wherein in the floor nozzle,
i) the radial outer portion of each of the projecting members having a first curved edge, a second curved edge, and a third curved edge between the first and second curved edge having a different curvature than the first curved edge and the second curved edge, the first and second curved edges having a same curvature; and
ii) each passageway has first and second side walls positioned between the converging inlet portion and the diverging outlet portion, and wherein the first and second side walls are parallel to one another; and
iii) the plurality of projecting members extending from the outer perimeter radially inward along a majority of the radial length of the linear frustoconical portion; and
iv) the lower surface of the deflector flange defines a first angle with respect to the upper surface of the deflector flange, the support surface of the body flange portion defines a second angle with respect to the upper surface of the deflector flange, the first angle being greater than the second angle.