Irrigation sprinkler

Claim 2

A popup irrigation sprinkler comprising a housing, means defining a water inlet for said housing, a nozzle head, means supporting said nozzle head for rotation on a generally vertical axis and for vertical movement between a retracted position within said housing and an elevated position located above said housing, an impeller having an axis of rotation substantially the same as that of said nozzle head, impact means carried by said impeller, means connected to said nozzle head and responsive to engagement by said impact means for effecting step-by-step rotation of said nozzle, means defining a passageway for directing water from said inlet to said nozzle head, means for directing a stream of water from said passageway against said impeller, a sheet metal cover having a uniform wall thickness and including a recessed center portion, and means for securing said center portion of said cover to said nozzle head.

Claim 3

A part-circle irrigation sprinkler comprising a housing, means defining a water inlet within the bottom portion of said housing, a nozzle head, means supporting said nozzle head for rotation on a generally vertical axis, an impeller having an axis of rotation substantially the same as that of said nozzle head, impact means carried by said impeller, means connected to said nozzle head and responsive to engagement by said impact means for effecting step-by-step rotation of said nozzle, said housing including means defining a passageway for directing water from said inlet upwardly past said impeller, a control member positioned above said impeller for rotation on an axis generally perpendicular to the axis of said impeller and adapted to direct the water from said passageway downwardly toward said impeller, a deflector vane positioned between said control member and said impeller, means supporting said deflector vane for pivotable movement on an axis generally parallel to the axis of said control member, and means for rotating said control member in response to rotation of said nozzle head through a predetermined arc to effect pivoting of said vane and reversing of the direction of rotation of said impeller and said nozzle head.

Claim 4

A part-circle irrigation sprinkler comprising a housing, means defining a water inlet within the bottom portion of said housing, a nozzle head, means supporting said nozzle head for rotation on a generally vertical axis, an impeller having an axis of rotation substantially the same as that of said nozzle head, impact means carried by said impeller, means connected to said nozzle head and responsive to engagement by said impact means for effecting step-by-step rotation of said nozzle, said housing including means defining a passageway for directing water from said inlet upwardly past said impeller, a control member positioned above said impeller for rotation on an axis generally perpendicular to the axis of said impeller and adapted to direct the water from said passageway downwardly toward said impeller, a deflector vane positioned between said control member and said impeller, means supporting said deflector vane for pivotable movement on an axis generally parallel to the axis of said control member, and means for rotating said control member in response to rotation of said nozzle head through a predetermined arc to effect pivoting of said vane and reversing of the direction of rotation of said impeller and said nozzle head.

Claim 5

A sprinkler as defined in claim 2, including an actuator member projecting upwardly from said control member, and adjustable finger means rotatable with said nozzle head and positioned to engage said actuator member to effect rotation of said control member.

Claim 6

An irrigation sprinkler comprising a housing, means defining a water inlet for said housing, a nozzle head, means supporting said nozzle head for rotation on a generally vertical axis, an impeller having an axis of rotation substantially the same as that of said nozzle head, at least one cylindrical spoollike impact member having a circumferential groove within its outer surface, a wirelike retaining member mounted on said impeller for rotation therewith and including a radially outwardly projecting U-shaped portion extending within said groove and supporting said impact member for both radial movement and rotation on a generally vertical axis, means connected to said nozzle head and responsive to engagement by said impact member for effecting step-by-step rotation of said nozzle, means defining a passageway for directing water from said inlet to said nozzle head, and means for directing a stream of water from said passageway toward said impeller.

Claim 7

An irrigation sprinkler comprising a housing, means defining a water inlet for said housing, a nozzle head, means supporting said nozzle head for rotation on a generally vertical axis, an impeller having an axis of rotation substantially the same as that of said nozzle head, at least one cylindrical spoollike impact member having a circumferential groove within its outer surface, a wirelike retaining member mounted on said impeller for rotation therewith and including a radially outwardly projecting U-shaped portion extending within said groove and supporting said impact member for both radial movement and rotation on a generally vertical axis, means connected to said nozzle head and responsive to engagement by said impact member for effecting step-by-step rotation of said nozzle, means defining a passageway for directing water from said inlet to said nozzle head, and means for directing a stream of water from said passageway toward said impeller.

Claim 8

A sprinkler as defined in claim 4, including a pair of said impact members, and said retaining member including a pair of diametrically positioned said U-shaped portions.