US3581994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deflection shield for lawn sprinkler
Assignee: HUNTER-MELNOR Inc
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Filing: 1969-02-20
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Granted: 1971-06-01
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Expires: 1989-02-20
Abstract
Abstract A water sprinkler deflection shield fabricated from sheet metal has an integral appendage formed from the same metal sheet, which extends into contact with the body of the sprinkler and is secured thereto for mounting the deflection shield in place. The shield serves to intercept jets of water which would otherwise be deflected by the impulse arm of the sprinkler toward an area outside the arc of sprinkler rotation. An adjustable, spring-held diffusion screw is threaded through the shield, and serves to fragment the errant jets of water.
Inventors
- 👤 Edwin M Heiberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:01
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/0455; B05B3/0461
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
185 words
In a water sprinkler of the pulsating type having a stationary base, a sprinkler head turnably mounted on said base, a water-ejection nozzle member screw mounted on said sprinkler head, and an impulse bar pivoted on said sprinkler head against which the ejected water impinges to impulse said bar for incrementally rotating said sprinkler head, water-deflection means arranged to intercept errant jets of water which are deflected by said impulse bar, said water-deflection means comprising a deflection shield fabricated from sheet material, and a mounting appendage integral with said deflection shield and fabricated from the same sheet material, said appendage having a mounting aperture sized to receive said nozzle member and to be clamped thereby upon said sprinkler head when said nozzle member is screw mounted on the latter, said mounting appendage and deflection shield being arranged relative to each other in such a manner as to position the deflection shield in the path of the errant jets deflected by said impulse bar and in a downwardly inclined attitude whereby the intercepted errant jets are diverted downwardly in a direction opposite to their original direction.
Claim 2
Dependent Claim
185 words
In a water sprinkler of the pulsating type having a stationary base, a sprinkler head turnably mounted on said base, a water-ejection nozzle member screw mounted on said sprinkler head, and an impulse bar pivoted on said sprinkler head against which the ejected water impinges to impulse said bar for incrementally rotating said sprinkler head, water-deflection means arranged to intercept errant jets of water which are deflected by said impulse bar, said water-deflection means comprising a deflection shield fabricated from sheet material, and a mounting appendage integral with said deflection shield and fabricated from the same sheet material, said appendage having a mounting aperture sized to receive said nozzle member and to be clamped thereby upon said sprinkler head when said nozzle member is screw mounted on the latter, said mounting appendage and deflection shield being arranged relative to each other in such a manner as to position the deflection shield in the path of the errant jets deflected by said impulse bar and in a downwardly inclined attitude whereby the intercepted errant jets are diverted downwardly in a direction opposite to their original direction.
Claim 3
Dependent Claim
81 words
Water-deflection means according to claim 1 in which said impulse bar is spring loaded to produce successive and periodic reciprocating cycles of pivoting movement, each cycle including an initial stroke in response to impingement of the ejected water thereon, and a return stroke under spring load, said mounting appendage in its mounted position being interposed in the path of the return stroke of said impulse bar, whereby to receive an impact therefrom to rotate the sprinkler head incrementally in one direction.
Claim 4
Dependent Claim
29 words
Water-deflection means according to claim 2 in which mounting appendage is curved substantially at the point of impact of said impulse bar, whereby to resist damage from such impact.
Claim 5
Dependent Claim
47 words
Water-deflection means according to claim 1 in which a water diffusion element projects perpendicularly from the surface of said deflection shield which intercepts said errant jets, said diffusion element being located in the path of said errant jets, whereby to fragment the jets of water incident thereon.
Claim 6
Dependent Claim
23 words
Water-deflection means according to claim 4 in which said water-diffusion element comprises a screw member adjustably threaded through said shield and protruding therefrom.
Claim 7
Dependent Claim
58 words
Water-diffusion means according to claim 5 in which said screw member includes a threaded body terminating in an enlarged head, and a coil spring surrounding said threaded body and in compression between said head and said deflection shield to tighten the threaded engagement between said body and said shield, to thereby impede vibratory dislocation of said screw member.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |