Rotary sprinkler head

Claim 2

In a pop up, gear driven, rotary sprinkler head, apparatus for adjusting the arc of water spray coverage, comprising: a. a first cam; b. a second cam arcuately spaced apart from said first cam; c. means responsive to the included angle between said first and second cams for reversing the direction of rotation of said sprinkler head; and d. means for adjusting said included angle between said first and second cams while said sprinkler is inoperative.

Claim 3

In a pop up, gear driven, rotary sprinkler head, apparatus for adjusting the arc of water spray coverage comprising: a. a sprinkler body; b. means on said sprinkler body for limiting the arc of rotation of the sprinkler head in one direction and for reversing said rotation; c. an arc adjustment ring having means thereon for limiting the arc of rotation of the sprinkler head in the opposite direction and for reversing said rotation; d. means on said sprinkler body and said adjustment ring releasably holding said adjustment ring against rotation relative to said body; and e. manually operable means to rotate said adjustment ring relative to said body against said releasably holding means so as to allow adjustment of said spray arc while said sprinkler head is inoperative.

Claim 4

In a pop up, gear driven, rotary sprinkler head, apparatus for adjusting the arc of water spray coverage comprising: a. a sprinkler body; b. means on said sprinkler body for limiting the arc of rotation of the sprinkler head in one direction and for reversing said rotation; c. an arc adjustment ring having means thereon for limiting the arc of rotation of the sprinkler head in the opposite direction and for reversing said rotation; d. means on said sprinkler body and said adjustment ring releasably holding said adjustment ring against rotation relative to said body; and e. manually operable means to rotate said adjustment ring relative to said body against said releasably holding means so as to allow adjustment of said spray arc while said sprinkler head is inoperative.

Claim 5

The apparatus as set forth in claim 2 in which said releasably holding means are detent means including uniformly spaced serrations each of such depth that a readily perceptible detent stop is provided at each of said detent positions.

Claim 6

The apparatus defined in claim 2 in which said releasably holding means comprise: a. detent lugs rigidly retained on said sprinkler body; and b. detent serrations on the outer periphery of said arc adjustment ring for detent interaction with said detent lugs on said sprinkler body.

Claim 7

The apparatus defined in claim 2 wherein: a. said arc adjustment ring has gear teeth on the periphery thereof; and b. said manually operable means comprises a rotatable gear in engagement with said gear teeth of the adjustment ring.

Claim 8

The apparatus defined in claim 2 in which said rotatable gear is disposed on a reciprocable plunger such that said gear may be moved into selective engagement with said gear teeth on said arc adjustment ring.

Claim 9

The apparatus as defined in claim 2 in which said detent means comprise equal, precisely spaced serrations so as to be readily perceptible by an operator when said adjustment ring is rotated relative to said body, so as to provide an exact indication of the angle through which said adjustment ring is rotated.

Claim 10

In a pop up, rotary sprinkler head wherein the rotary motion is derived from a gear train, apparatus for providing a water jet to energize said gear train, comprising: a. water conduit means having a first opening in fluid communication with a portion of the water supplied to said sprinkler head, and a second opening on the side of said water conduit means so as to provide a transverse stream of water; and b. a deflector movable with respect to saiD transverse stream of water from said second opening so as to provide a focused jet of water directed selectively in either of two directions when water is supplied to said sprinkler head to selectively drive the gear train in either of two opposite directions.

Claim 11

In a pop up, rotary sprinkler head wherein the rotary motion is derived from a gear train, apparatus for providing a water jet to energize said gear train, comprising: a. water conduit means having a first opening in fluid communication with a portion of the water supplied to said sprinkler head, and a second opening on the side of said water conduit means so as to provide a transverse stream of water; and b. a deflector movable with respect to saiD transverse stream of water from said second opening so as to provide a focused jet of water directed selectively in either of two directions when water is supplied to said sprinkler head to selectively drive the gear train in either of two opposite directions.

Claim 12

The apparatus defined in claim 8 in which said water conduit means is a cylindrical post and said deflector abuts said post along a portion of the length of said post and is selectively rotatable about the longitudinal axis of said post to first and second discrete positions, said deflector being provided with first and second transverse holes therethrough, such that said first hole of said deflector is brought into communication with said second opening in said post when said deflector is in said first discrete position, and said second hole of said deflector is brought into communication with said second opening in said post when said deflector is in said second discrete position, said first and second holes of said deflector being adapted to provide a focused jet of water directed selectively in either of two directions when water is supplied to said sprinkler head.

Claim 13

In a pop up, rotary sprinkler head in which the rotary motion of a nozzle relative to the stationary sprinkler body is derived from a gear train, apparatus for converting linear motion of the supply water to rotary motion of said gear train, comprising: a. a cylindrical post having a hollow central passage, said passage having a first opening in fluid communication with a portion of the water supplied to said sprinkler head, and a second opening on the circumference of said post so as may provide a transverse stream of water; b. a deflector abutting said post along a portion of the length of said post and selectively rotatable about the longitudinal axis of said post to first and second discrete positions, said deflector being provided with first and second transverse holes therethrough, such that said first hole of said deflector is brought into communication with said second opening in said post when said deflector is in said first discrete position, and said second hole of said deflector is brought into communication with said second opening in said post when said deflector is in said second discrete position, said first and second holes of said deflector being adapted to provide a focused jet of water directed selectively in either of two directions when water is supplied to said sprinkler head; and c. an impeller gear having teeth in engagement with a gear of said gear train, and which impeller gear is disposed immediately adjacent said deflector so that said teeth are in suitable position so that said jet of water emanating from said deflector will cause said impeller gear to rotate in a first direction about its axis when said first hole of said deflector is in communication with said second opening of said post, and said impeller gear will rotate in a second direction about its axis when said second hole of said deflector is in communication with said second opening of said post, so as to impart rotary motion to said gear train in either of two directions selected.

Claim 14

In a pop up, rotary sprinkler head in which the rotary motion of a nozzle relative to the stationary sprinkler body is derived from a gear train, apparatus for converting linear motion of the supply water to rotary motion of said gear train, comprising: a. a cylindrical post having a hollow central passage, said passage having a first opening in fluid communication with a portion of the water supplied to said sprinkler head, and a second opening on the circumference of said post so as may provide a transverse stream of water; b. a deflector abutting said post along a portion of the length of said post and selectively rotatable about the longitudinal axis of said post to first and second discrete positions, said deflector being provided with first and second transverse holes therethrough, such that said first hole of said deflector is brought into communication with said second opening in said post when said deflector is in said first discrete position, and said second hole of said deflector is brought into communication with said second opening in said post when said deflector is in said second discrete position, said first and second holes of said deflector being adapted to provide a focused jet of water directed selectively in either of two directions when water is supplied to said sprinkler head; and c. an impeller gear having teeth in engagement with a gear of said gear train, and which impeller gear is disposed immediately adjacent said deflector so that said teeth are in suitable position so that said jet of water emanating from said deflector will cause said impeller gear to rotate in a first direction about its axis when said first hole of said deflector is in communication with said second opening of said post, and said impeller gear will rotate in a second direction about its axis when said second hole of said deflector is in communication with said second opening of said post, so as to impart rotary motion to said gear train in either of two directions selected.

Claim 15

The apparatus as set forth in claim 10, in which said impeller gear comprises a spur gear having a substantial number of short, closely spaced teeth so as to place optimally close to said deflector holes the operative surfaces of said gear teeth upon which the water jet impinges, in order to obtain the optimum energy transfer from said water jet to said spur gear and thence to said gear train.

Claim 16

The apparatus as set forth in claim 10 in which said impeller gear comprises a spur gear having a substantial number of short, closely spaced teeth and a root circle diameter much greater than the depth of said gear teeth, so as to ensure that whenever said water jet impinges on the operative surfaces of said teeth a rotating moment is always created about said axis of said spur gear.

Claim 17

The apparatus as set forth in claim 10 additionally comPrising means for switching said deflector between said first and second discrete positions.

Claim 18

The apparatus as set forth in claim 13 in which said switching means comprise: a. first cam means on said body of said sprinkler head; b. second cam means arcuately adjustable relative to said first cam means; and c. spring means responsive to said cam means disposed on said post and deflector so as to cause said deflector to snap between said first and second discrete positions so as to render the included angle between said first and second cam means determinative of the arc sprayed by said nozzle.

Claim 19

In a pop up, gear driven, rotary sprinkler head, apparatus for converting the linear motion of the flow of supply water to the rotary motion of the nozzle of said sprinkler head, comprising: a. a cylindrical post having a hollow central passage, said passage having a first opening in fluid communication with a portion of the water supplied to said sprinkler head, and a second opening on the circumference of said post so as may provide a transverse stream of water; b. a deflector which abuts said post along a portion of the length of said post and is selectively rotatable about the longitudinal axis of said post to first and second discrete positions, and which deflector is provided with first and second horizontal holes therethrough, such that said first hole of said deflector is brought into communication with said second opening in said post when said deflector is in said first discrete position, and said second hole of said deflector is brought into communication with said second opening in said post when said deflector is in said second discrete position, said first and second holes of said deflector being adapted to provide a focused jet of water directed selectively in either of two directions when water is supplied to said sprinkler head; c. gear means comprised of a train of gears disposed rotatably between top and bottom frame members suitable for impinging interaction with said jet of water so that said individual gears of said train rotate when said jet of water impinges thereon; d. means for imparting the rotation of said individual gears to said top and bottom frame members of said gear means so as to cause said gear means to rotate about a vertical axis; and e. means secured to said gear means to impart said rotation of said gear means to said nozzle of said sprinkler head.

Claim 20

In a pop up, gear driven, rotary sprinkler head, apparatus for converting the linear motion of the flow of supply water to the rotary motion of the nozzle of said sprinkler head, comprising: a. a cylindrical post having a hollow central passage, said passage having a first opening in fluid communication with a portion of the water supplied to said sprinkler head, and a second opening on the circumference of said post so as may provide a transverse stream of water; b. a deflector which abuts said post along a portion of the length of said post and is selectively rotatable about the longitudinal axis of said post to first and second discrete positions, and which deflector is provided with first and second horizontal holes therethrough, such that said first hole of said deflector is brought into communication with said second opening in said post when said deflector is in said first discrete position, and said second hole of said deflector is brought into communication with said second opening in said post when said deflector is in said second discrete position, said first and second holes of said deflector being adapted to provide a focused jet of water directed selectively in either of two directions when water is supplied to said sprinkler head; c. gear means comprised of a train of gears disposed rotatably between top and bottom frame members suitable for impinging interaction with said jet of water so that said individual gears of said train rotate when said jet of water impinges thereon; d. means for imparting the rotation of said individual gears to said top and bottom frame members of said gear means so as to cause said gear means to rotate about a vertical axis; and e. means secured to said gear means to impart said rotation of said gear means to said nozzle of said sprinkler head.

Claim 21

The apparatus as set forth in claim 15, in which said gear means comprised of a train of gears further comprise an impeller gear in engagement with said gear train, which impeller gear is disposed suitably to be impinged by said water jet in such a manner that said impeller gear is caused to rotate so as to cause the rotation of said individual gears of said gear train.

Claim 22

The apparatus as set forth in claim 16 in which said impeller gear comprises a spur gear.

Claim 23

The apparatus as set forth in claim 15, and further including means for alternately reversing the direction of rotation of said nozzle of said rotary sprinkler head comprising: a. means for switching said deflector alternately between said two respective discrete positions; and b. means for camming said switching means so as to cause said switching means to switch said deflector between said two respective discrete positions, said camming means being responsive to the angular position of said nozzle.

Claim 24

The apparatus as set forth in claim 18, in which said means for switching said deflector alternately between said two respective discrete positions comprise: a. a collar disposed about a portion of said post such that said collar may be rotated about said longitudinal axis of said post selectively to two discrete positions corresponding respectively to the two discrete positions of said deflector; b. a first L-shaped arm having the shorter portion thereof rigidly affixed to said collar such that the longer portion thereof extends in a firSt direction parallel to said post, so as to be actuated by said camming means; c. a second L-shaped arm having the shorter portion thereof rigidly affixed to said collar such that the longer portion thereof extends in a second direction parallel to said post, so as to be selectively actuated by said camming means; and d. spring means of the over center type having two ends and being attached at one end to said deflector and at the other end to said collar, so as to cause said deflector to rotate very rapidly from said first discrete position to said second discrete position when said first L-shaped arm is actuated, and to cause said deflector to rotate from said second discrete position to said first discrete position when said second L-shaped arm is actuated.