Patent US3829018A successfully refreshed from Google Patents.
US3829018A
Expired / Lapsed
US
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Oscillating water sprinkler
Assignee: BURGESS PRODUCTS Inc
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Filing: 1973-10-15
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Granted: 1974-08-13
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Expires: 1993-10-15
Abstract
Abstract The sprinkler manifold tube is driven in oscillation about its axis by a fluidic-mechanical system. In both embodiments described, a single fluidic bi-stable interchange controls the incoming flow. The stream, flowing alternately to one side and the other from the interchange, divides into two branches, one branch flowing to one side of a motor chamber to drive the paddle-piston therein and thus the sprinkler tube which is supplied by the other branch. In one embodiment, a mechanical valve actuated at the adjustably predetermined end of each sprinkler tube sweep switches the stream to its alternate channel system while in another embodiment this flow switching operation is accomplished by an impulse generated in the motor chamber when the paddle-piston reaches the end of its travel.
Inventors
- 👤 E Oberto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:22
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/0417; B05B3/0432; B05B3/0438; A; A01; A01G; A01G25/00; A01G25/02; A01G25/023; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2202; Y10T137/2218
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
207 words
In an oscillating water sprinkler having a base with a horizontal sprinkler tube mounted therein for oscillating motion about its axis, a water supply inlet, a fluid motor comprising a chamber having a paddle-piston arranged therein drivingly secured to the sprinkler tube, and means for providing and controlling the flow of water to supply the sprinkler tube and the fluid motor; the improvement wherein said means comprises a channel system connecting the water supply inlet with the water sprinkler tube; a bistable fluidic interchange in said system connected to receive all of the water from the supply inlet and deliver the water alternatively to a left side channel system or a right side channel system; each said side system having two branch channels namely, a sprinkler supply channel and a motor power channel, the respective motor power channels being connected to the motor chamber on opposite sides of the paddle-piston; two control stream channels respectively operatively connected to opposite sides of said fluidic interchange; and means for impressing flow control pulses alternatively to said control stream channels to direct the flow of water alternatively to said right side and left side channel systems to drive the paddle-piston back and forth and thus the sprinkler tube in oscillation.
Claim 2
Dependent Claim
207 words
In an oscillating water sprinkler having a base with a horizontal sprinkler tube mounted therein for oscillating motion about its axis, a water supply inlet, a fluid motor comprising a chamber having a paddle-piston arranged therein drivingly secured to the sprinkler tube, and means for providing and controlling the flow of water to supply the sprinkler tube and the fluid motor; the improvement wherein said means comprises a channel system connecting the water supply inlet with the water sprinkler tube; a bistable fluidic interchange in said system connected to receive all of the water from the supply inlet and deliver the water alternatively to a left side channel system or a right side channel system; each said side system having two branch channels namely, a sprinkler supply channel and a motor power channel, the respective motor power channels being connected to the motor chamber on opposite sides of the paddle-piston; two control stream channels respectively operatively connected to opposite sides of said fluidic interchange; and means for impressing flow control pulses alternatively to said control stream channels to direct the flow of water alternatively to said right side and left side channel systems to drive the paddle-piston back and forth and thus the sprinkler tube in oscillation.
Claim 3
Dependent Claim
72 words
Structure in accordance with claim 1 wherein the means for impressing flow control pulses to the fluidic interchange control stream channels comprises two alternate inlet ports connecting the water supply inlet with the respective control stream channels, a mechanical valve arranged to switch the flow of water through one or the other of said two ports, and means for manipulating said valve in response to the angular position of the sprinkler tube.
Claim 4
Dependent Claim
95 words
Structure in accordance with claim 1 wherein the means for impressing flow control pulses to the fluidic interchange control stream channels comprises control stream channel extensions respectively connecting said fluidic interchange control stream channels to the fluid motor chamber on opposite sides of the paddle-piston, the right side control channel extension connecting with the motor chamber on the same side of the paddle-piston as the right side motor power channel and left side control channel extension connecting with the motor chamber on the same side of the paddle-piston as the left side motor power channel.
Claim 5
Dependent Claim
79 words
Structure in accordance with claim 3 wherein the channel system is defined by an hydraulic circuit plate and front and rear sealing plate means, said circuit plate having channels in the front side tHereof defining all of the channel system except the control stream channel extensions, the rear side of said circuit plate having said control stream channel extensions therein, said circuit plate having openings therethrough connecting the respective channel extensions with the respective fluidic interchange control stream channels.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |