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US 6,837,448 B2Granted
Nozzle device for spraying defined areas
AssigneeStreamtech, Inc.
InventorsJoseph U. Han, Giles A. Kendall
Life of this patent
Estimating the term…
Abstract
A sprinkler apparatus has a nozzle of a cross-sectional configuration to provide a liquid jet of similar cross-sectional configuration which impacts a reflector surface to reflect a spray of a cross-sectional configuration similar to that of an area to be sprayed. The nozzle passage and reflector surface may preferably be defined on a unitary nozzle device mounted on a base.
Claims8
Sprinkler apparatus comprising:
- a base adapted for attachment to a sprinkler assembly,
- a nozzle mounted on said base,
- said nozzle having a passage adapted to provide a liquid jet of a generally rectilinear cross-sectional configuration,
- means to supply liquid under pressure to the nozzle,
- a reflector surface disposed to be impacted by said liquid output jet from the nozzle,
- said nozzle and reflector surface being defined on a unitary nozzle device which is force-fitted into the base,
- said reflector surface being adapted and contoured to reflect said liquid jet in a spray to an area to be sprayed, said spray being of cross-sectional configuration generally similar to the rectilinear cross-sectional configuration of said liquid jet,
- the reflector surface having variations in the surface to reflect respective portions of spray at respective inclinations from the reflector to define respective portions of a predetermined spray pattern to respective portions of an area to be sprayed,
- whereby a spray pattern of a predetermined rectilinear cross-sectional configuration from the reflector surface is applied to the area to be sprayed.
6 more elements
Sprinkler apparatus comprising:
- a base adapted for attachment to a sprinkler and for liquid passage therethrough,
- a unitary nozzle device mounted on said base,
- said unitary nozzle device comprising an integrally formed nozzle passage and an integral reflector surface disposed in spaced-apart confronting relation, said reflector surface being disposed to be impacted by a liquid jet from the nozzle passage,
- said unitary nozzle device providing dimensional accuracy as between the nozzle and the reflector surface to enable accurate performance of the nozzle device and accurate repeatability in manufacture of the device,
- said nozzle passage being adapted to provide the liquid jet in a generally predetermined cross-sectional configuration,
- said reflector surface being contoured and adapted to reflect said liquid jet in a spray to an area having a cross-sectional configuration to be sprayed which is generally similar in cross-sectional configuration to that of said liquid jet, and
- a step shoulder defined in a wall portion of the nozzle device adjacent an outlet end of the nozzle passage to deflect the liquid jet from an innermost portion of the reflector surface to prevent interference by inaccurate spray from the innermost reflector surface portion,
- whereby a spray pattern of a substantially predetermined cross-sectional configuration is applied to an area to be sprayed.
5 more elements
Sprinkler apparatus comprising:
- a base adapted for attachment to a sprinkler and for liquid passage therethrough,
- a unitary nozzle device mounted on said base,
- said unitary nozzle device comprising an integrally formed nozzle passage and an integral reflector surface disposed in spaced-apart confronting relation, said reflector surface being disposed to be impacted by a liquid jet from the nozzle passage,
- said unitary nozzle device providing dimensional accuracy as between the nozzle and the reflector surface to enable accurate performance of the nozzle device and accurate repeatability in manufacture of the device,
- a generally circular lower portion of the nozzle device being force-fitted into a circular opening in the base, and wherein an interior wall of the base provides a wall of the nozzle passage,
- said nozzle passage being adapted to provide the liquid jet in a generally predetermined cross-sectional configuration, and
- said reflector surface being contoured and adapted to reflect said liquid jet in a spray to an area having a cross-sectional configuration to be sprayed which is generally similar in cross-sectional configuration to that of said liquid jet,
- whereby a spray pattern of a substantially predetermined cross-sectional configuration is applied to an area to be sprayed.
5 more elements
Dependencies are inferred from the claim text.