US 7,354,008 B2 | ||
Fluidic nozzle for trigger spray applications | ||
Russell D. Hester, Odenton, Md. (US); Rosa Korobkov, Timonium, Md. (US); Alan Santamarina, Columbia, Md. (US); Steve Crockett, Hampstead, Md. (US); and Shridhar Gopalan, Westminster, Md. (US) | ||
Assigned to Bowles Fluidics Corporation, Columbia, Md. (US) | ||
Filed on Sep. 26, 2005, as Appl. No. 11/235,427. | ||
Claims priority of provisional application 60/612742, filed on Sep. 24, 2004. | ||
Prior Publication US 2006/0065765 A1, Mar. 30, 2006 | ||
Int. Cl. B05B 1/08 (2006.01); B05B 9/043 (2006.01); B05B 1/02 (2006.01) |
U.S. Cl. 239—589.1 [239/333; 239/391; 239/392; 239/394; 239/396; 239/DIG. 3] | 6 Claims |
1. A fluidic nozzle for use with a trigger spray applicator that issues a desired spray pattern of liqiuid droplets into a
surrounding gaseous environment, said applicator having a spray head with a liquid delivering orifice and an exterior surface
proximate said orifice that is configured to receive said nozzle, said fluidic nozzle comprising:
a housing having a front and a rear face and between which passes a housing passage having a front and a rear portion,
a fluidic insert having a front and a rear face and between which passes an insert passage that includes a portion configured
as a fluidic circuit,
said housing passage front portion configured as a cavity that extends from an opening in said housing front face, said cavity
configured so as to allow said fluidic insert to be press fitted through said housing front face opening and into said cavity,
wherein said fluidic circuit configured so as to aid in providing said desired spray pattern,
wherein said spray head having a centerline and said spray head orifice being off said centerline, and said spray head exterior
surface configured to receive a nozzle having a circular shape so as to receive a rotatable nozzle,
said housing passage having a wall separating said front and rear portions,
said wall having a rear face and a front face and an orifice between said wall faces, said orifice situated in said wall so
as to be alignable with said spray head off-centerline orifice,
said housing passage rear portion configured so as to allow said housing to fit on said spray head configured to receive said
rotatable nozzle,
said fluidic insert having at least a second passage extending between said faces and in which a portion of said second passage
is configured as a fluidic circuit,
each of said passages containing said fluidic circuits having an opening in said insert rear face that allows fluid to enter
each of said circuits, and
said fluidic circuit openings situated in said insert rear face so as to be alternately alignable with said wall orifice as
said housing is rotated on said spray head so as to allow a nozzle user to choose which of said fluidic circuits is aligned
for said flow of liquid from said applicator.
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