Back to results
US 6,223,999 B1Granted
Static sprinkler with presettable water discharge pattern
AssigneeLego Irrigation Ltd.
InventorsNoam Lemelshtrich, Yoram Hadar
Life of this patent
Estimating the term…
Abstract
A static sprinkler presettable to select a desired water discharge pattern includes a lower part formed with a cavity defined by a cylindrical surface and extending axially from an inner end of the lower part serving as a water inlet through the outer end of the lower part; and an upper part carried by the lower part and having a cylindrical stem received within the cavity and engaging the cylindrical surface. The upper part is rotatably presettable with respect to the lower part to align one of a plurality of water discharge openings in one part with a passageway in the other part to thereby enable selection of the water discharge pattern of the sprinkler.
Claims19
A static sprinkler presettable to select a desired water discharge pattern, comprising:
- a first part formed with a water inlet, and a cavity defined by an inner cylindrical surface and extending axially from said water inlet;
- and a second part carried by said first part, said second part having a cylindrical stem received within said cavity, and an outer end closing said cavity, said stem having an outer surface of cylindrical configuration for its major surface area engageable with the inner cylindrical surface of said cavity;
- one of said parts being formed with a plurality of angularly-spaced water discharge openings communicating with said cavity, said water discharge openings being of different configurations to produce different water discharge patterns, at least one of said discharge openings producing a narrow water discharge pattern, and at least another of said discharge openings producing a wider water discharge pattern;
- the other of said parts being formed with at least one axially-extending passageway extending axially from said water inlet to said discharge openings in said one part;
- said second part and stem being rotatably presettable with respect to said first part to align said passageway of said other part with one of said water discharge openings in said one part to thereby enable selection of the water discharge pattern of the sprinkler.
2 more elements
A static sprinkler presettable to select a desired water discharge pattern, comprising:
- a first part formed with a water inlet, and a cavity defined by an inner cylindrical surface and extending axially from said water inlet;
- and a second part carried by said first part, said second part having a cylindrical stem received within said cavity, and an outer end closing said cavity;
- one of said parts being formed with a plurality of angularly-spaced water discharge openings communicating with said cavity, said water discharge openings being of different configurations to produce different water discharge patterns, at least one of said discharge openings producing a narrow water discharge pattern, and at least another of said discharge openings producing a wider water discharge pattern;
- the other of said parts being formed with at least one axially-extending passageway extending axially from said water inlet to said discharge openings in said one part;
- said second part and stem being rotatably presettable with respect to said first part to align said passageway of said other part with one of said water discharge openings in said one part to thereby enable selection of the water discharge pattern of the sprinkler;
- wherein said first part is a body member and constitutes said one part formed with a plurality of angularly-spaced water discharge openings;
- and said second part is a cap and constitutes said other part formed with said at least one axially-extending passageway, which passageway is formed in the stem of said cap.
4 more elements
A static sprinkler presettable to select a desired water discharge pattern, comprising:
- a first part formed with a water inlet, and a cavity defined by an inner cylindrical surface and extending axially from said water inlet;
- and a second part carried by said first part, said second part having a cylindrical stem received within said cavity, and an outer end closing said cavity;
- one of said parts being formed with a plurality of angularly-spaced water discharge openings communicating with said cavity, said water discharge openings being of different configurations to produce different water discharge patterns, at least one of said discharge openings producing a narrow water discharge pattern, and at least another of said discharge openings producing a wider water discharge pattern;
- the other of said parts being formed with at least one axially-extending passageway extending axially from said water inlet to said discharge openings in said one part;
- said second part and stem being rotatably presettable with respect to said first part to align said passageway of said other part with one of said water discharge openings in said one part to thereby enable selection of the water discharge pattern of the sprinkler;
- wherein said second part is a cap and constitutes said one part formed with a plurality of angularly-spaced water discharge openings, each water discharge opening being at the outer end of a passageway formed in said stem;
- said first part being a body member and constituting said other part formed with said at least one axially-extending passageway.
4 more elements
Dependencies are inferred from the claim text.