Foam-off nozzle assembly with barrel screen insert for use in a

Details Foam-off nozzle assembly with barrel screen insert for use in a Foam-off nozzle assembly with barrel screen insert for use in a

1988-09-29

1990-05-15

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Including supply holder for material

Moving solid surface engages material to be sprayed

239343, 2394285, 239432, 239504, B05B 102, B05B 112, B05B 704

Patent

active

049251066

ABSTRACT:
The foam nozzle assembly is mounted to a trigger sprayer and comprises an outer barrel portion defining a foam generating chamber into which liquid is ejected in a conical spray from an orifice in a back wall of the foam generating chamber. The cone of the spray subtends a predetermined angle. A perforated wall is located in the outer barrel portion and is spaced forwardly of the back wall having the orifice from which the conical spray is ejected. The perforated wall has ribs and slots therein and the back edges of the portions of the ribs between slots are rounded to provide a surface upon which the conical spray can infringe and be deflected in different directions to mix with air in the foam generating chamber to create foam. The rounded back edge of each of the ribs is defined by a generally circular round having a given radius R. Preferably, the width of each slot is defined as S and the radius R is in a ratio to the slot width S, R:S, of between approximately 1:2 and 1:4 and preferably 1:3.

REFERENCES:
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patent: 3937364 (1976-02-01), Wright
patent: 3946947 (1976-03-01), Schneider
patent: 4013228 (1977-03-01), Schneider
patent: 4027789 (1977-06-01), Dickey
patent: 4072252 (1978-02-01), Steyns et al.
patent: 4147306 (1979-04-01), Bennett
patent: 4156505 (1979-05-01), Bennett
patent: 4219159 (1980-08-01), Wesner
patent: 4234128 (1980-11-01), Quinn et al.
patent: 4350298 (1982-09-01), Tada
patent: 4365751 (1982-12-01), Saito et al.
patent: 4463905 (1984-08-01), Stoesser et al.
patent: 4625915 (1986-12-01), Cockman

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