Rotary sprinkler head
First Claim
1. A rotary sprinkler head comprising:
- a sprinkler body having an outlet and means devoid of any operative dynamic seals for communicating a source of water under pressure with said outlet,said outlet being defined by surface means for directing water under pressure communicated therewith into an atmospheric condition in a primary stream having a generally vertically extending axis,a rotary distributor mounted for rotational movement about a rotational axis with respect to said sprinkler body in engaging relation with respect to the primary stream directed from said outlet,said rotary distributor having surface means for engaging the primary stream (1) to establish a reactionary force component acting on said distributor in a direction tangential to the rotational axis thereof so as to effect rotational movement thereof about said axis of rotation and (2) to direct the primary stream engaged thereby in the form of pattern forming stream means including at least one stream moving away from said distributor in a direction having a substantial component extending radially outwardly from the generally vertical axis of said primary stream,speed reducing means operatively associated with said distributor for reducing the rotational speed of the distributor resulting from said reactionary force component from a relatively high whirling speed which would occur without said speed reducing means to a relatively slow speed so related to the distributor surface means forming the pattern forming stream means as to permit (1) said one stream to leave said distributor surface means with sufficient stream integrity to flow outwardly a distance substantially as great as the same said one stream would flow if the distributor were held stationary and (2) all of the pattern forming stream means including said one stream to be distributed within a generally circular pattern with a desired droplet size and with a desired water distribution within said generally circular pattern, the radius of said generally circular pattern being defined by the maximum extent of flow of said one stream.
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Accused Products
Abstract
A rotary sprinkler head comprising a sprinkler body devoid of any operative dynamic seals for communicating a source of water under pressure with an outlet for directing water under pressure communicated therewith into an atmospheric condition in a primary stream having a generally vertically extending axis. A rotary distributor is provided which has surfaces for engaging the primary stream (1) to establish a reactionary force component acting on the distributor in a direction tangential to the rotational axis thereof so as to effect rotational movement thereof about its axis of rotation and (2) to direct the primary stream engaged thereby in the form of a pattern forming stream or streams including at least one stream moving away from the distributor in a direction having a substantial component extending outwardly from the generally vertical axis of the primary stream so as to define the radius of the circular spray pattern. A speed reducing assembly is operatively associated with the distributor for reducing the rotational speed of the distributor resulting from the reactionary force component from a relatively high whirling speed which would occur without the speed reducing assembly to a relatively slow speed.
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Citations
48 Claims
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1. A rotary sprinkler head comprising:
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a sprinkler body having an outlet and means devoid of any operative dynamic seals for communicating a source of water under pressure with said outlet, said outlet being defined by surface means for directing water under pressure communicated therewith into an atmospheric condition in a primary stream having a generally vertically extending axis, a rotary distributor mounted for rotational movement about a rotational axis with respect to said sprinkler body in engaging relation with respect to the primary stream directed from said outlet, said rotary distributor having surface means for engaging the primary stream (1) to establish a reactionary force component acting on said distributor in a direction tangential to the rotational axis thereof so as to effect rotational movement thereof about said axis of rotation and (2) to direct the primary stream engaged thereby in the form of pattern forming stream means including at least one stream moving away from said distributor in a direction having a substantial component extending radially outwardly from the generally vertical axis of said primary stream, speed reducing means operatively associated with said distributor for reducing the rotational speed of the distributor resulting from said reactionary force component from a relatively high whirling speed which would occur without said speed reducing means to a relatively slow speed so related to the distributor surface means forming the pattern forming stream means as to permit (1) said one stream to leave said distributor surface means with sufficient stream integrity to flow outwardly a distance substantially as great as the same said one stream would flow if the distributor were held stationary and (2) all of the pattern forming stream means including said one stream to be distributed within a generally circular pattern with a desired droplet size and with a desired water distribution within said generally circular pattern, the radius of said generally circular pattern being defined by the maximum extent of flow of said one stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A rotary sprinkler comprising:
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a body portion having an inlet for receiving water under pressure and an outlet for discharging a stream of water to atmosphere; a distributor rotatable relative to said body portion and supported at one end of a shaft mounted for rotation within a bearing, said distributor having at least one surface for engaging the stream discharged from said outlet such that upon engagement with said stream, said distributor is caused to rotate; and a brake assembly for reducing rotational speed of said distributor, said brake assembly including a brake element mounted for rotation on said shaft remote from said one end, such that said bearing is located intermediate said distributor and said brake element. .Iaddend. .Iadd.41. A rotary sprinkler according to claim 40 wherein said bearing is mounted in said brake assembly and wherein said brake assembly includes a tubular support carried by said body portion, said brake assembly further including a chamber receiving said brake element for rotation therein. - View Dependent Claims (41)
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42. groove. .Iaddend. .Iadd.46. A rotary sprinkler comprising:
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a sprinkler body having an inlet and an outlet, said outlet mounting a removable outlet nozzle; a distributor supported at one end of a rotatable shaft and axially spaced from said outlet nozzle, said distributor having at least one surface for engaging a liquid stream discharged from said outlet nozzle, and for causing the distributor to rotate, said shaft mounted for rotation in a bearing supported in a brake assembly housing, said housing including a chamber substantially filled with a viscous fluid; and a brake element secured to the other end of said shaft and located within said chamber to dampen rotation of said shaft and said distributor.
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44. area radius of said distributor held stationary. .Iaddend. .Iadd.51. A rotary sprinkler head comprising:
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a non-rotational sprinkler body including an inlet and an outlet, said outlet including a nozzle for discharging a fluid stream under pressure to atmosphere; a rotatable distributor supported by said sprinkler body and axially spaced downstream from said nozzle, said distributor aligned with said outlet and including surface means for receiving and deflecting said stream, said surface means configured to cause rotation of said distributor upon receiving said stream; and braking means for reducing rotational speed of said distributor by a factor of between about 150 and about 7000, wherein said distributor is mounted on one end of a shaft, the other end of the shaft received within said braking means. .Iaddend. .Iadd.52. A rotary sprinkler head as defined in claim 51 wherein said braking means comprises a brake assembly housing, said shaft being journalled in a bearing located within said brake assembly housing;
a brake element mounted on said other end of said shaft and disposed within a chamber provided in said housing, said chamber being
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45. substantially filled with viscous fluid. .Iaddend. .Iadd.53. A rotary sprinkler head as defined in claim 52 wherein said chamber is at least partially defined by a peripheral wall, and wherein said brake element includes a fluid engaging member in close proximity to said peripheral wall to effect shearing of said viscous fluid upon rotation of said brake element. .Iaddend. .Iadd.54. A rotary sprinkler head as defined in claim 52 wherein said braking means is operative when said sprinkler head is in either of at least two positions, one of which is inverted with respect to
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46. the other. .Iaddend. .Iadd.55. A rotary sprinkler head comprising:
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a non-rotational sprinkler body including an inlet and an outlet, said outlet including a nozzle for discharging a stream under pressure to atmosphere; a rotatable distributor supported by said sprinkler body and axially spaced downstream from said nozzle, said distributor including at least one surface at one end thereof for receiving and deflecting said stream, said surface configured to cause rotation of said distributor upon receiving said stream; and braking means for reducing rotational speed of said distributor from about 1800 r.p.m. to between about 1/4 and about 12 r.p.m.; wherein said distributor is mounted on one end of a shaft, the other end of - View Dependent Claims (43)
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47. said shaft received within said braking means. .Iaddend. .Iadd.56. A rotary sprinkler head as defined in claim 55 wherein said braking means is operative when said sprinkler head is in either of at least two positions, one of which is inverted with respect to the other. .Iaddend. .Iadd.57. A rotary sprinkler head as defined in claim 55 wherein said other end of said shaft is journalled within a bearing within said braking means. .Iaddend. .Iadd.58. A rotary sprinkler head as defined in claim 57 wherein said braking means includes a housing supported by said sprinkler body such that said distributor, said shaft and said bearing are in axially spaced alignment with said nozzle. .Iaddend. .Iadd.59. A rotary sprinkler comprising:
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a sprinkler body having an inlet and an outlet for discharging a stream to atmosphere; a distributor supported at one end of a rotatable shaft and spaced from said outlet, said shaft mounted for rotation within a bearing, said distributor having at least one surface for engaging a stream discharged from said outlet; a brake element for reducing rotational speed of said distributor, said brake element mounted for rotation on said shaft remote from said one end, such that said bearing is located intermediate said distributor and said brake element; said at least one surface and said brake element cooperative to produce a
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48. substantially donut-shaped sprinkling pattern. .Iaddend. .Iadd.60. A rotary sprinkler head comprising:
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a sprinkler body provided with an inlet for receiving a pressurized fluid, and an outlet for discharging said fluid as a primary stream, said sprinkler body having no dynamic seals therein; a distributor rotatable relative to said body and supported at one end of a shaft mounted for rotation within a bearing, said distributor having at least one surface for engaging said primary stream discharged from said outlet; a viscous brake assembly including a brake element for reducing rotational speed of said distributor, said brake element mounted for rotation on said shaft remote from said one end, such that said bearing is located intermediate said distributor and said brake element. .Iaddend.
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Specification