Oscillating sprinkler
First Claim
1. A sprinkler comprising:
- a support base member;
an upper housing rotationally mounted to a top surface of the base member and tilting into variable angular attitudes relative to a vertical axis of rotation as the upper housing rotates about the base member;
a liquid chamber in the upper housing for receiving liquid from an external source;
the upper housing comprising at least one elongate arm member rigidly connected at one end to the upper housing and projecting therefrom, the arm member comprising an internal liquid passageway communicating with the liquid chamber and receiving liquid therefrom, and at least one outlet orifice extending through an outer wall of the arm member in communication with the liquid passageway and expelling liquid received therefrom through the orifice; and
the arm member rotates and tilts unitarily with the upper housing, and the arm member comprises actuation means for tilting the upper housing as the arm member rotates, whereby varying the arm member angle of projection relative to the vertical axis of rotation.
1 Assignment
0 Petitions
Accused Products
Abstract
An oscillating sprinkler comprises a fixed base assembly (12) and an upper housing (14) from which water distributing arms (16, 18, 20, 22) extend. A bearing member (66) depends from the upper housing (14) and is seated within the base assembly (12). An upper surface (26) of the base housing (12) comprises an undulating cam surface and bend portions (110) of the arm members act as cam followers. Bend portions (110) engage cam surface (26) and cause a reciprocal tilting of the upper housing (14) about the bearing member (66) as the upper housing (14) rotates about the base assembly (12). Water ejected from orifices (114) in the arm members (16, 18, 20, 22) act to propel the upper housing along its rotational path. A cap member (144) is rotationally mounted to the top of the upper housing (14) and pressurized water ejected through orifices (148) in the cap member (144) act to rotate the cap member in a direction opposite to the direction in which the upper housing rotates.
31 Citations
30 Claims
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1. A sprinkler comprising:
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a support base member; an upper housing rotationally mounted to a top surface of the base member and tilting into variable angular attitudes relative to a vertical axis of rotation as the upper housing rotates about the base member; a liquid chamber in the upper housing for receiving liquid from an external source;
the upper housing comprising at least one elongate arm member rigidly connected at one end to the upper housing and projecting therefrom, the arm member comprising an internal liquid passageway communicating with the liquid chamber and receiving liquid therefrom, and at least one outlet orifice extending through an outer wall of the arm member in communication with the liquid passageway and expelling liquid received therefrom through the orifice; andthe arm member rotates and tilts unitarily with the upper housing, and the arm member comprises actuation means for tilting the upper housing as the arm member rotates, whereby varying the arm member angle of projection relative to the vertical axis of rotation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A sprinkler comprising:
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a support base member; an upper housing rotationally mounted to a top surface of the base member rotating about a vertical axis of rotation in a first direction; a liquid chamber in the upper housing for containing liquid; the upper housing comprising at least one outlet orifice extending through an outer wall and communicating with a liquid passageway and expelling liquid therefrom through the orifice; and a cap member rotationally mounted to the upper housing and rotating in a second direction relative thereto contrary to the first direction about a cap member axis of rotation, the cap member further having an internal liquid reservoir communicating with the upper housing liquid chamber and at least one outlet port for discharging liquid from the reservoir and the cap member rotates unitarily with the upper housing about the vertical axis of rotation and rotates simultaneously thereto about the cap member axis of rotation. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A sprinkler comprising:
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a support base member; an upper housing rotationally mounted to a top surface of the base member and tilting into varying angular attitudes relative to an axis of rotation extending through the base member as the upper housing rotates; a liquid chamber in the upper housing; the upper housing comprising at least one outlet orifice extending through an outer wall and communicating with the liquid chamber and discharging liquid therefrom at an expulsion angle of trajectory which varies as the angular attitude of the upper housing varies; and an arm member rigidly connected at one end to the upper housing and projecting therefrom, and the arm member tilting with the upper housing into the varying angular attitudes; and tilt actuation means contacting an arm member portion at a location remote from the upper housing and acting through the arm member to tilt the upper housing into the varying angular attitudes. - View Dependent Claims (27, 28, 29, 30)
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Specification