Patent US3762642A successfully refreshed from Google Patents.
US3762642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grass guard for sprinkler heads
Assignee: SANTO B DI
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Filing: 1972-04-17
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Granted: 1973-10-02
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Expires: 1992-04-17
Abstract
Abstract A lawn sprinkler has a sprinkler head secured to the upper end of a water-supply pipe which is disposed in the ground. The upper side of the sprinkler head is substantially flush with the upper surface of the ground, and a grass guard is disposed under the sprinkler head with the water supply pipe extending through an aperture in the grass guard. The grass guard comprises a platelike member which includes two or more complementary sections, the complementary sections being engaged together under the sprinkler head by tongue and groove joints at their edges to form the guard plate-like member having the aperture therethrough, with the water supply pipe extending through the aperture. Disengagement and removal of a complementary section from the other section results in a passageway or clearance channel of width at least slightly larger than the outer diameter of the water supply pipe. Consequently the grass guard can be relatively easily and quickly removed, when broken, and replaced without requiring the prior removal and subsequent reinstallation of the sprinkler head.
Inventors
- 👤 Santo B Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:07
CPC Classifications
B; B05; B05B; B05B15/00; B05B15/14; B05B15/16
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
199 words
In a lawn sprinkler comprising an upstanding water supply pipe disposed in the ground, a sprinkler head secured on an upper end of the water-supply pipe, said head being substantially flush with an upper surface of the ground, and a grass guard having an aperture therethrough of a diameter at least slightly larger than the diameter of the water-supply pipe, said grass guard being disposed under the sprinkler head with the water-supply pipe extending through the aperture, the improvement which comprises the grass guard comprising two complementary plate-like sections, the complementary sections being engaged together under the sprinkler head by tongue and groove joints at the edges of the complementary sections to form a grass guard plate-like member having the aperture therethrough, one of the plate-like sections being a smaller section having substantially parallel side edges, and the remaining plate-like section being a larger section, said larger section having a radial channel formed therein of a width corresponding to the width of said smaller section, the watersupply pipe extending through the aperture, disengagement of a complementary section from the other section resulting in a passageway of width at least slightly larger than the outer diameter of the water-supply pipe.
Claim 2
Dependent Claim
199 words
In a lawn sprinkler comprising an upstanding water supply pipe disposed in the ground, a sprinkler head secured on an upper end of the water-supply pipe, said head being substantially flush with an upper surface of the ground, and a grass guard having an aperture therethrough of a diameter at least slightly larger than the diameter of the water-supply pipe, said grass guard being disposed under the sprinkler head with the water-supply pipe extending through the aperture, the improvement which comprises the grass guard comprising two complementary plate-like sections, the complementary sections being engaged together under the sprinkler head by tongue and groove joints at the edges of the complementary sections to form a grass guard plate-like member having the aperture therethrough, one of the plate-like sections being a smaller section having substantially parallel side edges, and the remaining plate-like section being a larger section, said larger section having a radial channel formed therein of a width corresponding to the width of said smaller section, the watersupply pipe extending through the aperture, disengagement of a complementary section from the other section resulting in a passageway of width at least slightly larger than the outer diameter of the water-supply pipe.
Claim 3
Dependent Claim
15 words
The apparatus of claim 1 wherein the plate-like sections are of a synthetic polymeric material.
Claim 4
Dependent Claim
68 words
The apparatus of claim 1 wherein the smaller plate-like section has grooves in its side edges extending substantially the entire length of the guard section, and the larger plate-like section has tongues formed in opposed side edges of the channel formed in said larger section and extending substantially the full length of the channel, the grooves each having a width slightly larger than the thickness of each tongue.
Claim 5
Dependent Claim
68 words
The apparatus of claim 1 wherein the smaller plate-like section has tongues in its side edges extending substantially the entire length of the guard section, and the larger plate-like section has grooves formed in opposed side edges of the channel formed in said larger section and extending substantially the entire length of the channel, the grooves each having a width slightly larger than the thickness of each tongue.
Claim 6
Dependent Claim
17 words
The apparatus of claim 1 wherein the larger plate-like section comprises at least two complementary plate-like sections.
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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |