Adjustable arc irrigation sprinkler nozzle configured for positive indexing
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B05B-017/04
B05B-001/26
B05B-001/30
B05B-001/32
출원번호
US-0859159
(2010-08-18)
등록번호
US-8783582
(2014-07-22)
발명자
/ 주소
Robertson, David Eugene
Kim, Eugene Ezekiel
출원인 / 주소
Rain Bird Corporation
대리인 / 주소
Fitch, Even, Tabin & Flannery, LLP
인용정보
피인용 횟수 :
6인용 특허 :
201
초록
An adjustable arc spray nozzle for an irrigation sprinkler is provided, where positive indexing is provided at a plurality of present locations between relatively rotatable components of the nozzle for defining predetermined arcuate extents of the spray pattern.
대표청구항▼
1. An irrigation spray nozzle for discharging an arcuately adjustable spray pattern, the nozzle comprising: a base having a first end portion adapted for attachment to an irrigation device and a second end portion;a first helical surface fixed relative to the base;a second helical surface moveable r
1. An irrigation spray nozzle for discharging an arcuately adjustable spray pattern, the nozzle comprising: a base having a first end portion adapted for attachment to an irrigation device and a second end portion;a first helical surface fixed relative to the base;a second helical surface moveable relative to the base, the first and second helical surfaces cooperating to define an arcuate discharge opening adjustable in size to determine an arc of spray distribution upon relative rotation between the first and second helical surfaces, the second helical surface being biased into a plurality of preset positions relative to the first helical surface such that a greater force is required to rotate the second helical surface out of one of the plurality of preset positions as compared to the force required to rotate the second helical surface between adjacent ones of the preset positions; anda deflector to deflect water received from the arcuate discharge opening. 2. The irrigation spray nozzle of claim 1, wherein spring means are provided for biasing the second helical surface into the plurality of preset positions relative to the first helical surface. 3. The irrigation spray nozzle of claim 1, wherein a spring is associated with one of the first and second helical surfaces for selective engagement with one of a plurality of detents associated with the other of the first and second helical surfaces. 4. The irrigation spray nozzle of claim 1, wherein the deflector has a depending neck with a plurality of flow notches disposed about its outer periphery, the preset positions being selected such that a notch aligned with an adjustable edge of the arcuate discharge opening is substantially unblocked by the second helical surface. 5. The irrigation spray nozzle of claim 4, wherein the notch aligned with the adjustable edge of the arcuate discharge opening is unblocked by the second helical surface. 6. The irrigation spray nozzle of claim 4, wherein the deflector has an upper portion with an underside with depending ribs thereon and the flow notches are aligned with channels formed between the ribs such that water flow paths extend through the flow notches and into the channels. 7. The irrigation spray nozzle of claim 6, wherein a plurality of the ribs of the deflector have an outwardly-extending step at least partially along the length of the ribs such that a micro-ramp extends into the channels for directing a portion of the water flow. 8. The irrigation spray nozzle of claim 7, wherein the channels have a bottom defined by the deflector and the plurality of ribs are each wider on a side of the step adjacent the bottom of the channels than on an opposite side of the step from the bottom of the channels. 9. The irrigation spray nozzle of claim 7, wherein a plurality of the ribs each have more than one outwardly-extending steps at least partially along the length of the ribs such that more than one micro-ramp of each of the plurality of ribs extends into the channels for directing a portion of the water flow. 10. The irrigation spray nozzle of claim 9, wherein the channels have a bottom defined by the deflector and the plurality of ribs are each wider on a side of any one of the more than one steps adjacent the bottom of the channels than on an opposite side of the one of the steps from the bottom of the channels. 11. The irrigation spray nozzle of claim 10, wherein the plurality of ribs each have a first step and a second step, the first step being closer to the bottom of the channel than the second step, and each of the plurality of ribs having an underside, the bottom of the channels, the first steps, second steps and underside of the ribs each configured to provide for more than one discrete spray. 12. The irrigation spray nozzle of claim 11, wherein the first step provides for a first micro-ramp which directs a first segment of the spray, the second step provides for a mid-range micro-ramp which directs a mid-range spray segment extending closer from the spray nozzle as compared to the first segment, the underside of the rib provides for a close-in micro-ramp which directs a close-in spray segment extending closer from the spray nozzle as compared to the mid-range spray segment, and a second ramp including the bottom of the channel which directs a second spray segment spray extending further than the mid-range and close-in spray segments and orientated out of phase with the first segment. 13. The irrigation spray nozzle of claim 3, wherein a collar is mounted for rotation about a second end portion of the base and includes the second helical surface and a neck of the deflector includes the first helical surface, and the spring is formed on the base and the detents are formed in the collar. 14. The irrigation spray nozzle of claim 13, wherein the deflector has an upper portion with an underside with depending ribs thereon and the neck depends from the underside and has a plurality of flow notches disposed about its outer periphery, the flow notches being aligned with channels formed between the ribs such that water flow paths extend through the flow notches and into the channels, and a plurality of the flow notches being aligned with an associated one of the plurality of preset positions. 15. The irrigation spray nozzle of claim 13, wherein the spring is cantilevered in an axial direction from the base and biased radially inward. 16. The irrigation spray nozzle of claim 13, wherein the spring is cantilevered in an axial direction from the base and axially biased. 17. A method of adjusting the arcuate extent of a discharge orifice for adjusting the arcuate extent of a spray pattern of an irrigation device, the method comprising: moving a first helical surface relative to a second helical surface to define the extent of the discharge orifice; andbiasing the first helical surface relative to the second helical surface in a plurality of preset positions during the movement of the first helical surface with a greater force being required to rotate the first helical surface out of one of the plurality of preset positions as compared to the force required to rotate the first helical surface between adjacent ones of the preset positions. 18. The method of claim 17, including biasing a spring associated with one of the first and second helical surfaces into one of a plurality of detents associated with the other of the first and second helical surfaces to define one of the preset positions. 19. An adjustable arc irrigation spray nozzle comprising: a base having an end adapted for attachment to an irrigation device;a deflector;a collar moveable relative to one or more fixed surfaces, the collar and the one or more fixed surfaces cooperating to form an adjustable arcuate discharge orifice for discharging water against the deflector, the collar being biased into one of a plurality of preset positions relative to the one or more fixed surfaces for providing positive indexing of the arcuate discharge orifice such that a greater force is required to rotate the collar out of one of the plurality of preset positions as compared to the force required to rotate the collar between adjacent ones of the preset positions. 20. The adjustable arc irrigation spray nozzle of claim 19, including a spring associated with one of the collar and the deflector or base biased for engagement with a plurality of detents associated with the other of the collar and the deflector or base, the engagement of the spring with one of the detents corresponding to of the plurality of present positions. 21. An irrigation spray nozzle for discharging an arcuately adjustable spray pattern, the nozzle comprising: a base having a first end portion adapted for attachment to an irrigation device and a second end portion;a first helical surface fixed relative to the base;a second helical surface moveable relative to the base, the first and second helical surfaces cooperating to define an arcuate discharge opening adjustable in size to determine an arc of spray distribution upon relative rotation between the first and second helical surfaces, the second helical surface being biased into a plurality of preset positions relative to the first helical surface; anda deflector to deflect water received from the arcuate discharge opening;wherein the deflector has a depending neck with a plurality of flow notches disposed about its outer periphery, the preset positions being selected such that a notch aligned with an adjustable edge of the arcuate discharge opening is substantially unblocked by the second helical surface, wherein the deflector has an upper portion with an underside with depending ribs thereon and the flow notches are aligned with channels formed between the ribs such that water flow paths extend through the flow notches and into the channels, wherein a plurality of the ribs of the deflector have an outwardly-extending step at least partially along the length of the ribs such that a micro-ramp extends into the channels for directing a portion of the water flow, and wherein the channels have a bottom defined by the deflector and the plurality of ribs are each wider on a side of the step adjacent the bottom of the channels than on an opposite side of the step from the bottom of the channels. 22. An irrigation spray nozzle for discharging an arcuately adjustable spray pattern, the nozzle comprising: a base having a first end portion adapted for attachment to an irrigation device and a second end portion;a first helical surface fixed relative to the base;a second helical surface moveable relative to the base, the first and second helical surfaces cooperating to define an arcuate discharge opening adjustable in size to determine an arc of spray distribution upon relative rotation between the first and second helical surfaces, the second helical surface being biased into a plurality of preset positions relative to the first helical surface; anda deflector to deflect water received from the arcuate discharge opening;wherein the deflector has a depending neck with a plurality of flow notches disposed about its outer periphery, the preset positions being selected such that a notch aligned with an adjustable edge of the arcuate discharge opening is substantially unblocked by the second helical surface, wherein the deflector has an upper portion with an underside with depending ribs thereon and the flow notches are aligned with channels formed between the ribs such that water flow paths extend through the flow notches and into the channels, wherein a plurality of the ribs of the deflector have an outwardly-extending step at least partially along the length of the ribs such that a micro-ramp extends into the channels for directing a portion of the water flow, and wherein a plurality of the ribs each have more than one outwardly-extending steps at least partially along the length of the ribs such that more than one micro-ramp of each of the plurality of ribs extends into the channels for directing a portion of the water flow, and wherein the channels have a bottom defined by the deflector and the plurality of ribs are each wider on a side of any one of the more than one steps adjacent the bottom of the channels than on an opposite side of the one of the steps from the bottom of the channels. 23. The irrigation spray nozzle of claim 22, wherein the plurality of ribs each have a first step and a second step, the first step being closer to the bottom of the channel than the second step, and each of the plurality of ribs having an underside, the bottom of the channels, the first steps, second steps and underside of the ribs each configured to provide for more than one discrete spray. 24. The irrigation spray nozzle of claim 23, wherein the first step provides for a first micro-ramp which directs a first segment of the spray, the second step provides for a mid-range micro-ramp which directs a mid-range spray segment extending closer from the spray nozzle as compared to the first segment, the underside of the rib provides for a close-in micro-ramp which directs a close-in spray segment extending closer from the spray nozzle as compared to the mid-range spray segment, and a second ramp including the bottom of the channel which directs a second spray segment spray extending further than the mid-range and close-in spray segments and orientated out of phase with the first segment. 25. An irrigation spray nozzle for discharging an arcuately adjustable spray pattern, the nozzle comprising: a base having a first end portion adapted for attachment to an irrigation device and a second end portion;a first helical surface fixed relative to the base;a second helical surface moveable relative to the base, the first and second helical surfaces cooperating to define an arcuate discharge opening adjustable in size to determine an arc of spray distribution upon relative rotation between the first and second helical surfaces, the second helical surface being biased into a plurality of preset positions relative to the first helical surface; anda deflector to deflect water received from the arcuate discharge opening;wherein a spring is associated with one of the first and second helical surfaces for selective engagement with one of a plurality of detents associated with the other of the first and second helical surfaces, and wherein a collar is mounted for rotation about a second end portion of the base and includes the second helical surface and a neck of the deflector includes the first helical surface, and the spring is formed on the base and the detents are formed in the collar. 26. The irrigation spray nozzle of claim 25, wherein the deflector has an upper portion with an underside with depending ribs thereon and the neck depends from the underside and has a plurality of flow notches disposed about its outer periphery, the flow notches being aligned with channels formed between the ribs such that water flow paths extend through the flow notches and into the channels, and a plurality of the flow notches being aligned with an associated one of the plurality of preset positions. 27. The irrigation spray nozzle of claim 25, wherein the spring is cantilevered in an axial direction from the base and biased radially inward. 28. The irrigation spray nozzle of claim 25, wherein the spring is cantilevered in an axial direction from the base and axially biased.
Cochran Wilson V. (Riverside CA) Staylor John L. (Riverside CA) Grundy Michael J. (Pinon Hills CA) Grizzle Glendale (Corona CA) Tyler Stephen L. (Diamond Bar CA), Adjustable radius sprinkler nozzle.
McMahon Michael D. (579 S. Hibiscus Way Anaheim Hills CA 92808) Rustad Andre M. (12366 Highland Ave. Etiwanda CA 91739), Continuous flow adaptor for a nebulizer.
Forer Karl (8291 E. Jamison Pl. Englewood CO 80112), Rotary sprinkler head having individually-adjustable deflector plates for watering irregularly-shaped areas.
Walker Samuel C. (Upland CA) Lockwood George H. (Wilton Manors FL) McCarthy Kenneth V. (Glendora CA) Feith Raymond P. (Covina CA), Rotating stream sprinkler.
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