Patent US4429832A successfully refreshed from Google Patents.
US4429832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projectable lawn sprinkler
Assignee: Individual
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Filing: 1981-10-16
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Granted: 1984-02-07
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Expires: 2001-10-16
Abstract
Abstract A projectable guard for a projectable lawn sprinkler for preventing foreign matter from entering the sprinker. The sprinklers to which the projectable guard is attached automatically rise from the ground when water pressure is applied thereto. The sprinklers have a housing, a pipe rigidly connected to the housing, a projectable conduit connected to the pipe, and a sprinkler head attached to the projectable conduit. The boot connects to the housing and the projectable pipe to prevent grass, leaves, sand, dirt, and the like from entering the housing.
Inventors
- 👤 Kerney T. Sheets
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:31
CPC Classifications
B; B05; B05B; B05B15/00; B05B15/70; B05B15/72; B05B15/74
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
124 words
In a projectable lawn sprinkler having a housing, a stationary pipe located in the interior of said housing and connected to the base of said housing, a projectable conduit slidably connected to the interior of said stationary pipe, and a means for spraying water connected to said projectable conduit means, the improvement comprising guard means connected to said projectable conduit and slidably received inside said housing for preventing foreign matter from entering the interior of said housing, the top of said guard means being projectable to a position above the top of said housing, said projectable guard means being a cylinder, the top of said cylinder extending above the top of said housing when said projectable conduit means is projected to its uppermost height.
Claim 2
Dependent Claim
124 words
In a projectable lawn sprinkler having a housing, a stationary pipe located in the interior of said housing and connected to the base of said housing, a projectable conduit slidably connected to the interior of said stationary pipe, and a means for spraying water connected to said projectable conduit means, the improvement comprising guard means connected to said projectable conduit and slidably received inside said housing for preventing foreign matter from entering the interior of said housing, the top of said guard means being projectable to a position above the top of said housing, said projectable guard means being a cylinder, the top of said cylinder extending above the top of said housing when said projectable conduit means is projected to its uppermost height.
Claim 3
Dependent Claim
20 words
The guard means of claim 1 wherein said cylinder is connected to said projectable conduit by a plurality of spokes.
Claim 4
Dependent Claim
16 words
The guard means of claim 1 wherein said means for spraying water is a sprinkler head.
References Cited (Backward Citations)
US3709435A
Cited
US4145003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-06 | 1987-08-08 | 1988-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-06 | 1991-08-08 | 1992-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-06 | 1995-08-08 | 1996-02-07 | $7700.00 | Window Closed / Lapsed |