Sprinkler control
First Claim
1. In a pop-up, rotary sprinkler system having an outer housing, a nozzle head vertically and rotatably movable through an outer housing cover, and an inner housing attached to the nozzle head and slidably received within said outer housing, such inner housing enclosing an adjustable direction controlling mechanism and a transmission driven by a water-wheel impeller, the combination which comprises:
- a. convex thrust rings integrally formed with cover and partition plates within said inner housing having surfaces confronting surfaces of rotating members of said transmission; and
b. resilient means to maintain said surfaces in contact with one another.
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Accused Products
Abstract
A rotary sprinkling system which is configured to minimize the accumulation and detrimental effects of debris, and which comprises a pop-up nozzle head secured to an inner housing slidably received within an outer housing and retained by the compressive force of a spring, such inner housing enclosing an impeller driven transmission subjected to only low pressure drops and having a speed-reducing gear train isolated from water flow, a simplified and easily adjustable direction controlling mechanism substantially inaccessible to intermeddlers, and a manually adjustable by-pass throttle to control the flow velocity of water driving a water-wheel impeller.
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Citations
33 Claims
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1. In a pop-up, rotary sprinkler system having an outer housing, a nozzle head vertically and rotatably movable through an outer housing cover, and an inner housing attached to the nozzle head and slidably received within said outer housing, such inner housing enclosing an adjustable direction controlling mechanism and a transmission driven by a water-wheel impeller, the combination which comprises:
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a. convex thrust rings integrally formed with cover and partition plates within said inner housing having surfaces confronting surfaces of rotating members of said transmission; and b. resilient means to maintain said surfaces in contact with one another. - View Dependent Claims (2, 3, 4, 5)
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6. A pop-up, rotary sprinkler system comprising:
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a. a cylindrical outer housing having an open upper end and a threaded port at a lower end for receiving a water supply conduit; b. a cover for said outer housing having a central opening; c. a cylindrical nozzle head having a lower open end and rotatable and vertically movable in said opening; d. a keyed inner housing slidable in nonrotating relation within said outer housing and having a top bearing plate with a central cylindrical guide bearing extending upward and seated within said nozzle head; e. a nozzle drive tube extending through said guide bearing and secured in said lower open end of said nozzle head for water discharge from within said inner housing, said drive tube having structure abutting said top plate; f. a nozzle drive shaft in said inner housing and coupled to said drive tube; g. an impeller in said inner housing and in fluid communication with said threaded port; and h. transmission means in said inner housing mechanically linking said impeller to said nozzle drive shaft. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. In a pop-up, rotary sprinkler system having an outer housing, a nozzle head vertically and rotatably movable in an outer housing cover, and an inner housing attached to the nozzle head and slidably received within said outer housing and having an adjustable direction controlling mechanism and an enclosed transmission driven by a water-wheel impeller, the combination which comprises:
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a. an outer housing cover shaped as a truncated right circular cone and having a centrally located opening; b. a sand shield seated within said opening which is in continual slidable contact with said nozzle head; c. means for effecting a seal between the top of said inner housing and said cover when said nozzle is elevated; and d. convex thrust rings integrally formed on said inner housing, and maintained in contact with confronting surfaces of rotating members of said transmission and with confronting surfaces of said impeller to seal said transmission from water flow. - View Dependent Claims (19, 20, 21, 22)
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23. A pop-up, rotary sprinkler system comprising:
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a. a cylindrical outer housing having an open upper end and a threaded port at a lower end for receiving a water supply conduit and having longitudinal guide keys; b. a housing cover having a centrally located opening, with said cover being secured to the mouth of said outer housing; c. a cylindrical nozzle head connected at a lower open end to a flange having an inner annular recess, said nozzle head being rotatable and vertically movable through said opening; d. a nozzle sand shield fitted into shoulders and recesses in said cover in said opening as to be in continual sliding contact with said nozzle head; e. an inner housing slidable in said outer housing in nonrotating relation maintained by said longitudinal guide keys seated in a keyway in said inner housing, said inner housing further having a top plate with a centrally located cylindrical guide extending upward and seated within said annular recess; f. a cylindrical, hollow nozzle drive tube extending through said guide and secured within said open end of said nozzle head for flow water to be discharged, said drive tube having at the lower end thereof an outward extending rim with upper surfaces abutting thrust surfaces of said top plate; g. a nozzle drive shaft rotatably seated within said inner housing and keyed to the lower end of said drive tube; and h. transmission means sealed within said inner housing and mechanically linking said impeller to said nozzle drive shaft. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification