US4613077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Programmable sprinkler
Assignee: Individual
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Filing: 1984-04-09
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Granted: 1986-09-23
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Expires: 2004-04-09
Abstract
Abstract A sprinkler body, to be anchored in the ground or to some structure, includes a chamber and a fluid inlet to the chamber. A rotatable head assembly mounted on the body includes a ring gear within the chamber and an external head with a laterally directed nozzle for directing a stream of fluid to cover a selected area around the sprinkler. A fluid operated motor within the body chamber, driven by the fluid passing through the sprinkler, drives the ring gear through reduction gearing. A Variable flow control valve consists of a slide mounted in the head for controlling the flow of fluid to the nozzle. A programmed cam is mounted on the body and a cam follower mounted on the valve slide follows the cam to vary the valve opening in relation to the rotational position of the head relative to the body. The valve controls the volume and throw of the fluid stream so that the sprinkler covers uniformly an area of irregular noncircular configuration. Motor fluid for the motor bypasses the valve to provide constant rotational speed of the head assembly. For a remote control sprinkler, a rotary valve in the body inlet may be operated by an electric motor, and a coacting index mechanism between the body and head, signals to the control mechanism the rotational position of the head relative to the body.
Inventors
- 👤 Jeffry D. Aronson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:55
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/0417; B05B3/0423; B05B3/0446; B05B3/0453; Y; Y10; Y10S; Y10S239/00; Y10S239/01
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
252 words
A sprinkler comprising a body having a chamber, and a fluid inlet passage to said chamber; a head rotatably mounted on said body, communicating with said chamber; said head having nozzle means for directing a fluid stream laterally relative to the axis of rotation thereof, and passage means communicating said nozzle means with said body chamber; drive means including motor means for rotating said head relative to said body; control valve means for varying the flow of fluid to said nozzle means; coacting control means mounted on said body and said head, responsive to the rotation of said head relative to said body for controlling said control valve means; said control means comprising a platelike cam mounted on said body and disposed perpendicular to said axis of head rotation; said platelike cam having a peripheral edge cam surface; said flow control valve means comprising a valve slide mounted in said head adjacent to said platelike cam for reciprocation transverse to said axis of head rotation, said valve slide having a port coacting with said passage means for varying fluid flow in response to reciprocation thereof; and said control means further comprising a cam follower mounted on said valve slide for coacting with said cam surface, and means urging said valve slide in a direction to maintain said cam follower in engagement with said cam surface; flow passage means bypassing said flow control valve means for effecting uniform flow of fluid through said motor means; said motor means comprising fluid activated motor means.
Claim 2
Dependent Claim
252 words
A sprinkler comprising a body having a chamber, and a fluid inlet passage to said chamber; a head rotatably mounted on said body, communicating with said chamber; said head having nozzle means for directing a fluid stream laterally relative to the axis of rotation thereof, and passage means communicating said nozzle means with said body chamber; drive means including motor means for rotating said head relative to said body; control valve means for varying the flow of fluid to said nozzle means; coacting control means mounted on said body and said head, responsive to the rotation of said head relative to said body for controlling said control valve means; said control means comprising a platelike cam mounted on said body and disposed perpendicular to said axis of head rotation; said platelike cam having a peripheral edge cam surface; said flow control valve means comprising a valve slide mounted in said head adjacent to said platelike cam for reciprocation transverse to said axis of head rotation, said valve slide having a port coacting with said passage means for varying fluid flow in response to reciprocation thereof; and said control means further comprising a cam follower mounted on said valve slide for coacting with said cam surface, and means urging said valve slide in a direction to maintain said cam follower in engagement with said cam surface; flow passage means bypassing said flow control valve means for effecting uniform flow of fluid through said motor means; said motor means comprising fluid activated motor means.
Claim 3
Dependent Claim
296 words
A sprinkler comprising a body having a chamber, and a fluid inlet passage to said chamber; a head rotatably mounted on said body, communicating with said chamber; said head having nozzle means for directing a fluid stream laterally relative to the axis of rotation thereof, and passage means communicating said nozzle means with said body chamber; drive means including motor means for rotating said head relative to said body; control valve means for varying the flow of fluid to said nozzle means; coacting control means mounted on said body and said head, responsive to the rotation of said head relative to said body for controlling said control valve means; said control means comprising a platelike cam mounted on said body and disposed perpendicular to said axis of head rotation; said platelike cam having a peripheral edge cam surface; said flow control valve means comprising a valve slide mounted in said head adjacent to said platelike cam for reciprocation transverse to said axis of head rotation, said valve slide having a port coacting with said passage means for varying fluid flow in response to reciprocation thereof; and said control means further comprising a cam follower mounted on said valve slide for coacting with said cam surface, and means urging said valve slide in a direction to maintain said cam follower in engagement with said cam surface; said motor means comprising fluid actuated motor means to be driven by fluid passing into said body; said fluid actuated motor means including a housing having an inlet and an outlet; conduit means associated with said head for communicating said motor housing outlet with said head passage means, said conduit means bypassing said control valve means, whereby fluid flows through said fluid actuated motor means independently of said control valve means.
Claim 4
Dependent Claim
296 words
A sprinkler comprising a body having a chamber, and a fluid inlet passage to said chamber; a head rotatably mounted on said body, communicating with said chamber; said head having nozzle means for directing a fluid stream laterally relative to the axis of rotation thereof, and passage means communicating said nozzle means with said body chamber; drive means including motor means for rotating said head relative to said body; control valve means for varying the flow of fluid to said nozzle means; coacting control means mounted on said body and said head, responsive to the rotation of said head relative to said body for controlling said control valve means; said control means comprising a platelike cam mounted on said body and disposed perpendicular to said axis of head rotation; said platelike cam having a peripheral edge cam surface; said flow control valve means comprising a valve slide mounted in said head adjacent to said platelike cam for reciprocation transverse to said axis of head rotation, said valve slide having a port coacting with said passage means for varying fluid flow in response to reciprocation thereof; and said control means further comprising a cam follower mounted on said valve slide for coacting with said cam surface, and means urging said valve slide in a direction to maintain said cam follower in engagement with said cam surface; said motor means comprising fluid actuated motor means to be driven by fluid passing into said body; said fluid actuated motor means including a housing having an inlet and an outlet; conduit means associated with said head for communicating said motor housing outlet with said head passage means, said conduit means bypassing said control valve means, whereby fluid flows through said fluid actuated motor means independently of said control valve means.
Claim 5
Dependent Claim
34 words
A sprinkler as set forth in claim 2 including said conduit means being disposed in the axis of rotation of said head; said conduit means defining bearing means for supporting said motor housing outlet.
Claim 6
Dependent Claim
28 words
A sprinkler as set forth in claim 2 including said conduit means including a tube disposed within said head and extending through said port of said valve slide.
Claim 7
Dependent Claim
157 words
A sprinkler comprising a body having a chamber, and a fluid inlet passage to said chamber; a head rotatably mounted on said body, communicating with said chamber; said head having nozzle means for directing a fluid stream laterally relative to the axis of rotation thereof, and passage means communicating said nozzle means with said body chamber; drive means including motor means for rotating said head relative to said body; control valve means for varying the flow of fluid to said nozzle means; coacting control means mounted on said body and said head, responsive to the rotation of said head relative to said body for controlling said control valve means; motor means for driving said control valve means; said control means including coacting indexing means mounted on said body and said head; said indexing means including signaling means responsive to rotation of said head relative to said body for controlling the operation of said control valve motor means.
Claim 8
Dependent Claim
157 words
A sprinkler comprising a body having a chamber, and a fluid inlet passage to said chamber; a head rotatably mounted on said body, communicating with said chamber; said head having nozzle means for directing a fluid stream laterally relative to the axis of rotation thereof, and passage means communicating said nozzle means with said body chamber; drive means including motor means for rotating said head relative to said body; control valve means for varying the flow of fluid to said nozzle means; coacting control means mounted on said body and said head, responsive to the rotation of said head relative to said body for controlling said control valve means; motor means for driving said control valve means; said control means including coacting indexing means mounted on said body and said head; said indexing means including signaling means responsive to rotation of said head relative to said body for controlling the operation of said control valve motor means.
Claim 9
Dependent Claim
57 words
A sprinkler as set forth in claim 5 including said control valve motor means comprising electric motor means; said indexing means comprising peripherally spaced detent means mounted on said head; and said signaling means comprising electric switch means mounted on said body, coacting with said detent means to transmit electric signals identified with respective said detent means.
Claim 10
Dependent Claim
42 words
A sprinkler as set forth in claim 6 including said head having keying detent means, associated with one of said indexing detent means, for coaction with said switch means to identify a selected rotary position of said head relative to said body.
References Cited (Backward Citations)
US2693390A
Cited
US2835529A
Cited
US2780488A
Cited
US2962220A
Cited
US3645451A
Cited
US3960327A
Cited
US3952954A
Cited
US4186880A
Cited
US4253608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-22 | 1990-03-24 | 1990-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-22 | 1994-03-24 | 1994-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-22 | 1998-03-24 | 1998-09-23 | $7700.00 | Window Closed / Lapsed |