Adjustable oscillating wave-type sprinkler
First Claim
1. In an oscillating wave irrigation sprinkler of the type primarily intended for use in watering lawns, flowers, shrubs, and the like, said sprinkler including a support base, a spray tube assembly rotatably mounted to said base for side-to-side oscillation about a generally horizontal axis, a plurality of individual spray openings formed in said spray tube, said openings being formed to eject discrete water streams outwardly of said spray tube in a fan-shaped spray pattern, and drive means for effecting limited side-to-side oscillation of said spray tube about said generally horizontal axis, the improvement wherein said drive means comprises:
- an impact drive arm assembly mounted to said spray tube for rotation with respect thereto about said generally horizontal axis, said impact drive arm assembly including;
a drive spoon disposed to intercept the path of one of said discrete water streams from one of said spray openings thereby to rotate said drive arm relative to said spray tube and move said drive spoon away from the path of said one stream;
a spring means coupled between said drive arm and said spray tube, said spring means urging said drive spoon into the path of said one discrete water stream;
impact means on said drive arm for impacting said spray tube to impart incremental rotation to said spray tube in one direction with each return of said drive spoon into the path of said one stream; and
reverse drive means for causing said impact drive assembly to effect incremental rotation of said spray tube in a direction opposite to said one direction when a preselected limit of oscillation in said one direction of rotation has been reached, thereby to drive said spray tube in limited side-to-side oscillation relative to said base about said generally horizontal axis.
3 Assignments
0 Petitions
Accused Products
Abstract
An adjustable oscillating wave-type irrigation sprinkler having an impact or impulse drive type mechanism for effecting side-to-side oscillation by a spray tube about a horizontal axis, the drive mechanism including a pair of drive spoons coupled to impact arms journaled for rotation relative to the spray tube and intercepting streams of water from the spray tube to produce incremental rotation of the spray tube about the horizontal axis.
33 Citations
55 Claims
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1. In an oscillating wave irrigation sprinkler of the type primarily intended for use in watering lawns, flowers, shrubs, and the like, said sprinkler including a support base, a spray tube assembly rotatably mounted to said base for side-to-side oscillation about a generally horizontal axis, a plurality of individual spray openings formed in said spray tube, said openings being formed to eject discrete water streams outwardly of said spray tube in a fan-shaped spray pattern, and drive means for effecting limited side-to-side oscillation of said spray tube about said generally horizontal axis, the improvement wherein said drive means comprises:
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an impact drive arm assembly mounted to said spray tube for rotation with respect thereto about said generally horizontal axis, said impact drive arm assembly including; a drive spoon disposed to intercept the path of one of said discrete water streams from one of said spray openings thereby to rotate said drive arm relative to said spray tube and move said drive spoon away from the path of said one stream; a spring means coupled between said drive arm and said spray tube, said spring means urging said drive spoon into the path of said one discrete water stream; impact means on said drive arm for impacting said spray tube to impart incremental rotation to said spray tube in one direction with each return of said drive spoon into the path of said one stream; and reverse drive means for causing said impact drive assembly to effect incremental rotation of said spray tube in a direction opposite to said one direction when a preselected limit of oscillation in said one direction of rotation has been reached, thereby to drive said spray tube in limited side-to-side oscillation relative to said base about said generally horizontal axis. - View Dependent Claims (2, 3, 4, 5)
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6. In an oscillating wave irrigation sprinkler of the type primarily intended for use in watering lawns, flowers, shrubs, and the like, said sprinkler including a support base, a spray tube assembly rotatably mounted to said base for side-to-side oscillation about a generally horizontal axis, a plurality of individual spray openings formed in said spray tube, said openings being formed to eject discrete water streams outwardly of said spray tube in a fan-shaped spray pattern, and drive means for effecting limited side-to-side oscillation of said spray tube about said generally horizontal axis, the improvement wherein said drive means comprises:
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an impact drive assembly coupled to said spray tube for rotation relative thereto about said generally horizontal axis, said impact drive assembly including a drive arm having a pair of axially spaced drive spoons attached thereto, means mounting said drive arm to said spray tube for oscillating swinging rotation of each of said drive spoons about said axis and into intercepting engagement with one of said discrete water streams from one of said spray openings and into impact engagement with said spray tube, and spring means for urging said drive arm to swing said drive spoons toward intercepting engagement with said one of said water streams and impact engagement with said spray tube, whereby said impact drive assembly incrementally rotates said spray tube about said axis in a forward rotational direction relative to said base in a succession of relatively small steps; a reversing mechanism mounted to said spray tube and including a reversing dog moveable between a forward drive position with said reversing dog out of the swinging path of rotation of said drive arm and a reverse drive position for impact engagement by said drive arm to rotate said spray tube stepwise in a reverse rotational direction; and means for shifting said reversing mechanism between said forward and reverse drive positions in response to rotational oscillation of said spray tube to an end limit of predetermined arcuate rotational path about said generally horizontal axis. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An oscillating wave irrigation sprinkler comprising:
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a support base; a spray tube assembly rotatably mounted to said base for side-to-side oscillation about a generally horizontal axis; means for coupling said spray tube assembly to a source of pressurized water; a plurality of individual spray openings formed in said spray tube, said openings being formed to eject discrete water streams outwardly of said spray tube in a fan-shaped spray pattern; and drive means for effecting limited side-to-side oscillation of said spray tube about said generally horizontal axis, said drive means including an impact drive assembly coupled to said spray tube for rotation relative thereto about said generally horizontal axis, said impact drive assembly including a drive arm having at least one drive spoon attached thereto, means mounting said drive arm to said spray tube for oscillating swinging rotation of said drive spoon about said axis and into intercepting engagement with one of said discrete water streams from one of said spray openings, and into impact engagement with said spray tube, and spring means for urging said drive arm to swing said drive spoon toward intercepting engagement with said one water stream and impact engagement with said spray tube, whereby said impact drive assembly incrementally rotates said spray tube about said axis in a forward rotational direction relative to said base in a succession of relatively small steps; a reversing mechanism mounted to said spray tube and including a reversing dog moveable between a forward drive position with said reversing dog out of the swinging path of rotation of said drive arm and a reverse drive position for impact engagement by said drive arm to rotate said spray tube stepwise in a reverse rotational direction; and means coupled to said base for shifting said reversing mechanism between said forward and reverse drive positions in response to rotational oscillation of said spray tube to an end limit of predetermined arcuate rotational path about said generally horizontal axis. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An oscillating wave irrigation sprinkler comprising:
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a support base; a spray tube assembly rotatably mounted to said base for side-to-side oscillation about a generally horizontal axis; means for coupling said spray tube assembly to a source of pressurized water; a plurality of individual spray openings formed in said spray tube, said openings being formed to eject discrete water streams outwardly of said spray tube in a fan-shaped spray pattern; and drive means for effecting limited side-to-side oscillation of said spray tube about said generally horizontal axis, said drive means including an impact drive assembly coupled to said spray tube for rotation relative thereto about said generally horizontal axis, said impact drive assembly including a drive arm having a pair of axially spaced drive spoons attached thereto, means mounting said drive arm to said spray tube for oscillating swinging rotation of each of said drive spoons about said axis and into intercepting engagement with one of said discrete water streams from one of said spray openings, and into impact engagement with said spray tube, and spring means for urging said drive arm to swing said drive spoon toward intercepting engagement with said one water stream and impact engagement with said spray tube, whereby said impact drive assembly incrementally rotates said spray tube about said axis in a forward rotational direction relative to said base in a succession of relatively small steps; a reversing mechanism mounted to said spray tube and including a reversing dog moveable between a forward drive position with said reversing dog out of the swinging path of rotation of said drive arm and a reverse drive position for impact engagement by said drive arm to rotate said spray tube stepwise in a reverse rotational direction; and means coupled to said base for shifting said reversing mechanism between said forward and reverse drive positions in response to rotational oscillation of said spray tube to an end limit of predetermined arcuate rotational path about said generally horizontal axis. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
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Specification