Water sprinkler

Claim 2

A water sprinkler having a mounting sleeve, a hollow stem, cooperable means on the stem and on the mounting sleeve retaining the stem and mounting sleeve together for relative rotational movement, a hollow body secured to the stem having a portion disposed at an angle thereto, a hollow nozzle secured to said portion of the body and forming with the stem and body a water flow conduit, an oscillating paddle pivoted to the body on an axis offset from the jetstream of the nozzle and intersecting obliquely the jetstream issuing therefrom, a primary ramp face on the paddle between the pivot pin and the nozzle, a secondary ramp face on the paddle extending beyond the pivot pin from the nozzle, and upper and lower wings on the paddle.

Claim 3

A water sprinkler according to claim 1, wherein the slope of the primary ramp face includes a compound curve having a smooth cross-sectional curve between the wings.

Claim 4

A water sprinkler according to claim 2 wherein the slope of the secondary ramp face also includes a compound curve having a smooth cross-sectional curve between the wings.

Claim 5

A water sprinkler according to claim 1 further comprising a head on the lower end of the stem, washers on the stem abutting the shoulder of the head, and a spring surrounding the stem urging the head into engagement with the washers.

Claim 6

A water sprinkler having a mounting sleeve, a hollow stem projecting through the mounting sleeve, a head on one end of the stem retaining the mounting sleeve to the stem, a hollow body secured to the other end of the stem, a nozzle in the hollow body, an arm projecting from the hollow body having a depending pivot pin adjacent its end and an abutment at its end, an oscillatory paddle pivoted on the pivot pin, the paddle being pivoted on an axis offset from the jetstream of the nozzle and intersecting obliquely the jetstream issuing therefrom, the end of the paddle nearest the nozzle having upper and lower wings and a primary ramp face between the upper and lower wings, the end of the paddle more distant from the nozzle having a secondary face between the said upper and lower wings, the ramp faces of the paddle being at such an angle relative to the jetstream that when the primary ramp face is in the jet stream, it causes diversion of the stream thereby creating reaction forces on the paddle to move it in one direction until the secondary ramp face is in the jet stream, whereupon the secondary reaction force urges the primary ramp face back into the jetstream.

Claim 7

A water sprinkler having a mounting sleeve, a hollow stem projecting through the mounting sleeve, a head on one end of the stem retaining the mounting sleeve to the stem, a hollow body secured to the other end of the stem, a nozzle in the hollow body, an arm projecting from the hollow body having a depending pivot pin adjacent its end and an abutment at its end, an oscillatory paddle pivoted on the pivot pin, the paddle being pivoted on an axis offset from the jetstream of the nozzle and intersecting obliquely the jetstream issuing therefrom, the end of the paddle nearest the nozzle having upper and lower wings and a primary ramp face between the upper and lower wings, the end of the paddle more distant from the nozzle having a secondary face between the said upper and lower wings, the ramp faces of the paddle being at such an angle relative to the jetstream that when the primary ramp face is in the jet stream, it causes diversion of the stream thereby creating reaction forces on the paddle to move it in one direction until the secondary ramp face is in the jet stream, whereupon the secondary reaction force urges the primary ramp face back into the jetstream.

Claim 8

A water sprinkler according to claim 5 wherein the upper wing of the primary face slopes upwardly but the lower wing is substantially horizontal.

Claim 9

A water sprinkler according to claim 5, wherein the nozzle threadably engages the body and contains an orifice adjustable relative to the paddle by rotation of the nozzle.

Claim 10

A water sprinkler according to claim 5, wherein the primary ramp face and secondary ramp face are continuous.

Claim 11

A water sprinkler according to claim 5, wherein the primary ramp face and secondary ramp face are discontinuous but are interconnected by said wings.

Claim 12

A water sprinkler having a mounting sleeve, a hollow stem, cooperable means on the stem and on the mounting sleeve retaining the stem and mounting sleeve together for relative rotational movement, a hollow body secured to the stem, a hollow nozzle secured at an angle to the body and forming with the stem and body a water flow conduit, an arm projecting forwardly of the nozzle and having an upper portion and lower portion with a nozzle disposed therebetween, an abutment member of one of said portions, an oscillating paddle having a pivot pin protruding through one of said portions, and a torsion spring engaging the pivot pin and applying a torque thereto.

Claim 13

A water sprinkler having a mounting sleeve, a hollow stem, cooperable means on the stem and on the mounting sleeve retaining the stem and mounting sleeve together for relative rotational movement, a hollow body secured to the stem, a hollow nozzle secured at an angle to the body and forming with the stem and body a water flow conduit, an arm projecting forwardly of the nozzle and having an upper portion and lower portion with a nozzle disposed therebetween, an abutment member of one of said portions, an oscillating paddle having a pivot pin protruding through one of said portions, and a torsion spring engaging the pivot pin and applying a torque thereto.

Claim 14

A water sprinkler according to claim 10 further comprising a boss on the upper portion of said arm having an aperture therethrough, the pivot pin of the paddle being rotationally movable in said boss aperture, a lower bearing between the paddle and the lower portion of said arm in alignment with the pivot pin, and an adjustable cap on an upwardly extending portion of said boss, said torsion spring engaging the pivot pin at its one end and the boss at its other end.

Claim 15

A water sprinkler according to claim 11 wherein the ramp faces of the paddle are discontinuous to provide a window opening therebetween, the angles of the ramp face being such that the jetstream passes through the window opening during oscillation of the paddle.

Claim 16

A water sprinkler according to claim 11 further comprising an abutment on the paddle cooperable with said abutment on said arm and operable to limit paddle movement.