Irrigation spray nozzle and mold assembly and method of forming nozzle
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B05B-001/26
B29C-045/26
B29C-045/33
B29C-045/44
출원번호
US-0829875
(2013-03-14)
등록번호
US-9314952
(2016-04-19)
발명자
/ 주소
Walker, Samuel C.
Nazaryan, Vahik
출원인 / 주소
Rain Bird Corporation
대리인 / 주소
Fitch, Even, Tabin & Flannery, LLP
인용정보
피인용 횟수 :
1인용 특허 :
299
초록▼
A nozzle is provided having a low precipitation rate and uniform fluid distribution to a desired arcuate span of coverage. The nozzle has an inflow port having a shape corresponding to the desired arc of coverage and a size for effecting a low precipitation rate. The nozzle also has a deflector surf
A nozzle is provided having a low precipitation rate and uniform fluid distribution to a desired arcuate span of coverage. The nozzle has an inflow port having a shape corresponding to the desired arc of coverage and a size for effecting a low precipitation rate. The nozzle also has a deflector surface with a water distribution profile including ribs for subdividing the fluid into multiple sets of fluid streams. There are at least two fluid streams for distant and close-in irrigation to provide relatively uniform distribution and coverage. The nozzle may be a unitary, one-piece, molded nozzle body including a mounting portion, an inflow port, and a deflector portion. There is also provided a mold assembly and method for forming a unitary, one piece nozzle body.
대표청구항▼
1. A nozzle comprising: a nozzle body defining a mounting portion, at least one deflector, and a base surface facing the at least one deflector and defining at least one port, the mounting portion defining an inlet, the at least one port reducing fluid flowing through the nozzle body from the inlet
1. A nozzle comprising: a nozzle body defining a mounting portion, at least one deflector, and a base surface facing the at least one deflector and defining at least one port, the mounting portion defining an inlet, the at least one port reducing fluid flowing through the nozzle body from the inlet to a predetermined precipitation rate, and the at least one deflector contoured to deliver fluid radially outwardly from the nozzle through a predetermined arcuate span; anda recess extending radially between the at least one deflector and the base surface;wherein the base surface is spaced upstream of the at least one deflector;wherein the at least one port comprises: at least one opening formed independent of the at least one deflector and with a cross-sectional shape corresponding to the shape of the predetermined arcuate span; anda bore upstream of the at least one opening and oriented to guide fluid from the at least one opening across at least a portion of the recess towards the at least one deflector. 2. A nozzle comprising: a nozzle body defining a mounting portion, at least one port, and at least one deflector, the mounting portion defining an inlet, the at least one port reducing fluid flowing through the nozzle body from the inlet to a predetermined precipitation rate, and the at least one deflector contoured to deliver fluid radially outwardly from the nozzle through a predetermined arcuate span;wherein the at least one deflector comprises a surface having a profile forming part of the deflector and wherein the profile includes at least two sets of flow channels that subdivide fluid into a plurality of fluid streams with at least two different elevations;wherein the nozzle body comprises at least one transition surface intermediate of the at least one port and the profile guiding flow directed through the at least one port to the at least two sets of flow channels, the at least one transition surface aligned with and expanding smoothly in the direction of the profile. 3. The nozzle of claim 2 wherein the at least one transition surface is generally conical in shape having a vertex directed to the at least one port expanding into smoothly curved sides having increasing curvature in the direction of the at least one deflector. 4. The nozzle of claim 1 wherein the at least one port is configured to provide a predetermined precipitation rate of fluid through the nozzle body less than or equal to one inch per hour. 5. The nozzle of claim 2 wherein the at least one port comprises an opening with a cross-sectional shape corresponding to the shape of the predetermined arcuate span. 6. The nozzle of claim 2 comprising two ports, two transition surfaces, and two deflectors delivering fluid through a predetermined arcuate span greater than 180 degrees. 7. The nozzle of claim 1 wherein the nozzle body further comprises at least one boundary wall defining edges of the predetermined arcuate span. 8. The nozzle of claim 2 wherein the at least one deflector and the at least one transition surface each have a shape corresponding to the predetermined arcuate span. 9. The nozzle of claim 1 wherein the at least one deflector includes a plurality of ribs arranged radially to define at least two sets of flow channels, one set having a first elevation defined by a first set of grooves between successive ribs and the second set having a second different elevation defined by a second set of grooves of a predetermined depth formed within at least one rib. 10. The nozzle of claim 9 wherein the plurality of ribs define a third set of flow channels, the third set having a third elevation defined by a third set of grooves formed within at least one rib having a different predetermined depth than the second set of grooves, the third elevation being different from the first and second elevations. 11. The nozzle of claim 9 wherein the plurality of ribs define a third set of flow channels, the third set having a third elevation defined by a bottom edge of at least one rib. 12. The nozzle of claim 1 wherein the at least one deflector includes a plurality of ribs arranged radially to define at least two sets of flow channels, one set having a first elevation defined by grooves between successive ribs and the second set having a second different elevation defined by a first step formed at least partially along the length of at least one rib. 13. The nozzle of claim 12 wherein the plurality of ribs define a third set of flow channels, the third set having a third elevation defined by a second step formed at least partially along the length of at least one rib and the third elevation being different from the first and second elevations. 14. The nozzle of claim 1 wherein the nozzle body defines a bore therethrough, the bore receiving a flow throttling screw that may be advanced toward the inlet to reduce the flow rate through the nozzle and that may be withdrawn away from the inlet to increase the flow rate through the nozzle. 15. A nozzle comprising: a nozzle base including a mounting portion defining an inlet; and a nozzle cap in mating engagement with the nozzle base, the nozzle cap comprising:at least one port reducing fluid flowing through the nozzle body from the inlet to a predetermined precipitation rate;at least one deflector contoured to deliver fluid radially outwardly from the nozzle through a predetermined arcuate span, the at least one deflector comprising a surface having a profile forming part of the at least one deflector and wherein the profile includes at least two sets of flow channels that subdivide fluid into a plurality of fluid streams with at least two different elevations; andat least one transition surface intermediate of the at least one port and the profile guiding flow directed through the at least one port to the at least two sets of flow channels, the at least one transition surface aligned with and expanding smoothly in the direction of the profile. 16. The nozzle of claim 15 wherein one of the nozzle base and the nozzle cap comprises a plurality of bores for receiving a corresponding plurality of posts of the other of the nozzle base and the nozzle cap. 17. The nozzle of claim 16 wherein one of the plurality of posts in conjunction with the corresponding bore defines the shape of the at least one port, the shape of the at least one port corresponding to the shape of the predetermined arcuate span. 18. The nozzle of claim 15 comprising two ports, two transition surfaces, and two deflectors delivering fluid through a predetermined arcuate span greater than 180 degrees. 19. A mold assembly for making a spray nozzle body having a bottom end with a mounting portion defining an inlet and at least one deflector contoured to deliver fluid radially outwardly from the nozzle body through a predetermined arcuate span and at least one port, the at least one deflector comprising a profile including at least two sets of flow channels that subdivide fluid into a plurality of fluid streams with at least two different elevations, the at least one port comprising at least one opening with a cross-sectional shape corresponding to the shape of the predetermined arcuate span, the mold assembly comprising: a cavity block defining in part a mold cavity and having a plurality of openings;a first core unit having a first surface with a profile to mirror the top of the nozzle body and moveable through one opening between an advanced position protruding into the cavity block and a retracted position substantially withdrawn from the cavity block;a second core unit having a second surface with a profile to mirror the bottom end mounting portion of the nozzle body and configured for insertion through a second opening; anda third core unit having a third surface with a profile to mirror at least in part the at least one deflector profile and moveable through a third opening between an advanced position protruding into the cavity block and a retracted position substantially withdrawn from the cavity block. 20. The mold assembly of claim 19 wherein the first core unit comprises a post for defining in part a central bore of the body. 21. The mold assembly of claim 19 wherein the second core unit comprises a threaded core sleeve for defining threading of the body. 22. The mold assembly of claim 19 wherein the second core unit comprises a mold core sleeve for defining the at least one port of the nozzle body. 23. The mold assembly of claim 22 wherein the third core unit further comprises a fourth surface with a profile to mirror a transition surface intermediate of the at least one port and the profile, the transition surface guiding flow directed through the at least one port to the at least two sets of flow channels, the transition surface aligned with and expanding smoothly in the direction of the profile. 24. The mold assembly of claim 19 wherein the third core unit comprises a compound slide having a first slide and a second slide, the second slide including the third surface with a profile to mirror at least in part the at least one deflector profile. 25. The mold assembly of claim 24 wherein the first and second slides each have a wall and a guide surface, wherein the guide surfaces slide relative to one another upon initial retraction of the first slide from the advanced position to allow the first slide to move relative to the second slide and wherein the walls engage at a predetermined distance from the advanced position to allow the first and second slides to move together relative to the mold cavity. 26. The mold assembly of claim 25 wherein the first slide wall is moveable between at least three positions, a first position for molding in the advanced position, a second position disengaged from the second slide wall and in which the second slide is disengaged from the profile, and a third position in which the first and second slide walls engage one another. 27. The mold assembly of claim 19 further comprising a fourth core unit defining in part the body and moveable through a fourth opening between an advanced position protruding into the cavity block and a retracted position substantially withdrawn from the cavity block. 28. A method of forming a molded, unitary, one-piece spray nozzle body having a bottom end with a mounting portion defining an inlet and at least one deflector contoured to deliver fluid radially outwardly from the nozzle body through a predetermined arcuate span and at least one port, the at least one deflector comprising a profile including at least two sets of flow channels that subdivide fluid into a plurality of fluid streams with at least two different elevations, the at least one port comprising at least one opening with a cross-sectional shape corresponding to the shape of the predetermined arcuate span, the method comprising: forming a cavity block defining in part a mold cavity and having a plurality of openings;inserting a first core unit having a first surface with a profile to mirror the top of the nozzle body through a first opening in the cavity block;inserting a second core unit having a second surface with a profile to mirror the bottom end mounting portion of the nozzle body through a second opening in the cavity block;inserting a third core unit having a third surface with a profile to mirror at least in part the at least one deflector profile through a third opening in the cavity block;injecting plastic material into the mold cavity to form the nozzle body; andretracting at least two of the core units from the cavity block. 29. The method of claim 28 wherein the second core unit comprises a threaded core sleeve for defining threading of the body. 30. The method of claim 28 wherein the second core unit comprises a mold core sleeve for defining the at least one port of the nozzle body. 31. The method of claim 30 wherein the third core unit further comprises a fourth surface with a profile to mirror a transition surface intermediate of one port and the at least one deflector profile, the transition surface guiding flow directed through the one port to the at least two sets of flow channels, the transition surface aligned with and expanding smoothly in the direction of the at least one deflector profile. 32. The method of claim 28 wherein the third core unit comprises a compound slide for defining in part the deflector of the body. 33. The method of claim 28 further comprising inserting a fourth core unit to define in part the body through a fourth opening in the cavity block.
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.
Machut Daniel M. (23150 Crooked Arrow Dr. Lake Elsinore CA 92532), Multifunctional adjustable irrigation system for plant bedding and low crop environments.
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.
Kah ; Jr. Carl L. C. (778 Lakeside Dr. North Palm Beach FL 33408), Transmission device having an adjustable oscillating output for rotary driven sprinklers.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.