Patent US4369807A successfully refreshed from Google Patents.
US4369807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective fire hydrant guard
Assignee: Individual
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Filing: 1980-08-01
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Granted: 1983-01-25
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Expires: 2000-08-01
Abstract
Abstract The operating stem of a hydrant is protectively surrounded by a steel collar which upstands considerably above such stem so that only a special deep socket for a wrench can be used to engage and turn the stem. When the hydrant is without a weather guard the collar is fixedly welded directly to the bonnet and has side openings to permit solid objects and water to escape from within and not interfere with the turning of the stem. Where the hydrant has a weather guard, a flanged adapter is welded directly to the bonnet to cover the weather guard and the collar has a flanged lower end whereby it is held in place axially by the adapted but is free to rotate.
Inventors
- 👤 John P. Camp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:06
CPC Classifications
E; E03; E03B; E03B9/00; E03B9/02; E03B9/04; E03B9/06; Y; Y10; Y10T; Y10T137/00; Y10T137/5327; Y10T137/5456; Y10T137/5468; Y10T137/6851; Y10T137/7043; Y10T137/7062; Y10T137/9247
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
158 words
In combination with a fire hydrant having a stand pipe on which a bonnet is mounted and having a valve operating stem extending rotatably through the bonnet and terminating in a nut end above the bonnet, a protective arrangement for the nut end comprising a collar arrangement fixedly welded on the bonnet and surrounding the nut end and extending well above the nut end so that an ordinary wrench cannot engage the nut end with said collar arrangement having openings so that debris cannot collect around the nut end and a weather guard surrounding the nut end above the bonnet and said collar arrangement includes a flanged adapter welded to the bonnet around the weather guard, said collar being disposed within the adapter and extending upwardly therefrom and having an annular flange cooperating with the flange on the adapter whereby axial withdrawal of the collar is prevented while permitting free rotation of the collar without activating the hydrant.
Claim 2
Dependent Claim
158 words
In combination with a fire hydrant having a stand pipe on which a bonnet is mounted and having a valve operating stem extending rotatably through the bonnet and terminating in a nut end above the bonnet, a protective arrangement for the nut end comprising a collar arrangement fixedly welded on the bonnet and surrounding the nut end and extending well above the nut end so that an ordinary wrench cannot engage the nut end with said collar arrangement having openings so that debris cannot collect around the nut end and a weather guard surrounding the nut end above the bonnet and said collar arrangement includes a flanged adapter welded to the bonnet around the weather guard, said collar being disposed within the adapter and extending upwardly therefrom and having an annular flange cooperating with the flange on the adapter whereby axial withdrawal of the collar is prevented while permitting free rotation of the collar without activating the hydrant.
Claim 3
Dependent Claim
26 words
The invention of claim 1 wherein said adapter and collar have openings radial to the stem nut end whereby debris cannot collect around the nut end.
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) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |