Reversible turbine driven sprinkler unit

Claim 2

A reversible sprinkler unit comprising: a cylindrical tubular housing having an axis and inlet means for attachment to a source of pressurized water; a sprinkler nozzle directed outward at an angle to and mounted for rotation about said axis of said housing and communicating with said inlet means; a reversible turbine mounted in said housing for rotation about the axis of said housing and drivingly connected to said nozzle for rotating said nozzle in alternate directions about said axis, said turbine including reversible stator means; flow interrupting means intermittently driven in one of said alternate directions by said sprinkler nozzle as said sprinkler nozzle rotates in said one direction and held stationary as said sprinkle nozzle rotates in the other of said alternate directions; and shifting means for shifting said stator to respective reversible positions including a torsion shaft member rotatably mounted and extending coaxial of said turbine and said housing.

Claim 3

The sprinkler unit of claim 1 wherein said flow interrupting means comprises a circular band having a plurality of windows therein and interrupting means extending into said windows for intermittently interrupting said flow.

Claim 4

The sprinkler unit of claim 2 wherein said flow interrupting means includes a ratchet and pawl combination drivingly engaging said sprinkler nozzle in one direction of rotation thereof and releaseably engaging said housing in the opposite direction of rotation of said sprinkler nozzle.

Claim 5

A reversible part circle sprinkler unit comprising: a cylindrical tubular housing having a longitudinal axis and a central through bore with a central axis and means at one end for attachment to a source of pressurized water; a sprinkler head rotatably mounted on the other end of said tubular housing coaxially thereof for rotation about said longitudinal axis thereof; a reversible turbine mounted in said housing in the inlet end thereof and drivingly connected to said sprinkler head for driving said head in alternate directions; and said reversible turbine including reversible stator means comprising a fixed stator member coaxially mounted within said cylindrical housing and a rotatable stator member mounted on said fixed stator member for rotation about the longitudinal axis of said tubular housing; and shifting means for shifting said stator between alternate reversing positions, comprising an elongated torsion shaft member connected at one end to said stator means, mounting means along said axis for rotatably mounting said torsion shaft coaxially of said housing, and said torsion shaft terminating at the other end at a position coaxially, and exterior of said sprinkler head, and shifting lever means on said exterior end of said torsion shaft member, and reversing finger members carried by said sprinkler head for alternately engaging said shifting lever means for rotating said shaft thereby rotating said rotatable stator between alternate reversing positions.

Claim 6

A reversible part circle sprinkler unit comprising: a cylindrical tubular housing having a longitudinal axis and a central through bore with a central axis and means at one end for attachment to a source of pressurized water; a sprinkler head rotatably mounted on the other end of said tubular housing coaxially thereof for rotation about said longitudinal axis thereof; a reversible turbine mounted in said housing in the inlet end thereof and drivingly connected to said sprinkler head for driving said head in alternate directions; and said reversible turbine including reversible stator means comprising a fixed stator member coaxially mounted within said cylindrical housing and a rotatable stator member mounted on said fixed stator member for rotation about the longitudinal axis of said tubular housing; and shifting means for shifting said stator between alternate reversing positions, comprising an elongated torsion shaft member connected at one end to said stator means, mounting means along said axis for rotatably mounting said torsion shaft coaxially of said housing, and said torsion shaft terminating at the other end at a position coaxially, and exterior of said sprinkler head, and shifting lever means on said exterior end of said torsion shaft member, and reversing finger members carried by said sprinkler head for alternately engaging said shifting lever means for rotating said shaft thereby rotating said rotatable stator between alternate reversing positions.

Claim 7

The sprinkler unit of claim 4 wherein said torsion shaft has a generally T configuration at one end for connecting to said reversible stator means; and said reversing finger members comprising a pair of shift fingers.

Claim 8

The sprinkler unit of claim 5 wherein: said head includes a cylindrical cavity coaxially thereof and coaxially of said tubular housing; and said torsion shaft extends into said cavity coaxially thereof and said shifting lever means are disposed within said cavity.

Claim 9

The sprinkler unit of claim 6 wherein said shift fingers are adjustably mounted within said cylindrical cavity.

Claim 10

The sprinkler unit of claim 7 wherein said shift fingers comprise a semi-circular spring wire member, having an inwardly and upwardly extending finger on one end thereof, for frictionally engaging the interior wall of said cylindrical cavity.

Claim 11

The sprinkler unit of claim 4 wherein: said nozzle is directed outward at an angle to said axis; and flow interrupting means intermittently passing in front of said nozzle for disrupting the flow of water therefrom.

Claim 12

The sprinkler unit of claim 4 wherein said fixed stator member comprises a plurality of radially directed diamond shaped spokes radially directed outward from a central hub; and said rotatable stator member comprises a plurality of radially directed triangular cross-sectioned shaped spokes and is rotatably mounted coaxially with said fixed member with said radially directed spokes cooperatively engaging said diamond shaped spokes on alternate sides thereof for directing the flow of water in alternate directions for alternate directions of rotation of said turbine.

Claim 13

The sprinkler unit of claim 10 wherein said rotatable stator member comprises a plurality of axially directed fingers annularly spaced around the hub thereof; and said torsion member includes a T-shaped coupling member engaging said axially directed fingers.

Claim 14

The sprinkler unit of claim 4 wherein said fixed stator member comprises radially extending fingers of a generally diamond shaped cross-section; said rotatable stator member comprises radial fingers of a generally triangular cross-section for cooperatively engaging said fixed fingers of said fixed stator member for defining alternately directed fluid directing stator surfaces.

Claim 15

The sprinkler unit of claim 12 comprising flow interrupting means intermittently driven by said sprinkler head in one direction of rotation of said head and held stationary in the other direction of rotation of said head for periodically interrupting the flow from said nozzle during rotation thereof; said flow interrupting means comprising a circular band having windows therein and flow interrupting tab means in said windows.

Claim 16

The sprinkler unit of claim 12 comprising: a cylindrical cavity formed coaxially in said sprinkler head; said torsion shaft extends coaxially into said cavity and said shifting lever means is disposed within said cavity; and said reversing finger members are adjustably mounted in said cylindrical cavity for selectively adjusting the range of rotation of said sprinkler head.

Claim 17

The sprinkler unit of claim 14 wherein: said reversing finger members are semi-circular spring wire members that frictionally engage the interior wall of said cylindrical cavity and each includes an inwardly and upwardly extending end defining a finger for engaging said shift lever.

Claim 18

The sprinkler unit of claim 15 wherein said torsion shaft member is a spring wire having a generally T-shaped end coupled to said rotatable stator member by engagement with axially extending fingers on said rotatable stator member.

Claim 19

The sprinkler unit of claim 13 comprising: a cylindrical cavity formed coaxially in said sprinkler head; said torsion shaft extends coaxially into said cavity and said shifting lever means is disposed within said cavity; and said reversing finger members are semi-circular spring wire members that frictionally engage the interior wall of said cylindrical cavity, and are thereby adjustably mounted in said cylindrical cavity for selectively adjusting the range of rotation of said sprinkler head, and each includes an inwardly and upwardly extending end defining a finger for engaging said shifting lever means.