US3223110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire hydrant with self-contained detachable operating assembly with lubricant reservoir
Assignee: Mueller Co
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Filing: 1964-12-28
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Granted: 1965-12-14
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Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 Frank H Mueller
- 👤 John J Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:52
CPC Classifications
E; E03; E03B; E03B9/00; E03B9/02; Y; Y10; Y10T; Y10T137/00; Y10T137/5327; Y10T137/5479; Y10T137/598; Y10T137/6154
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A FIRE HYDRANT COMPRISING: A BARREL; MAIN HYDRANT VALVE MEANS AT THE LOWER END OF SAID BARREL; A RECIPROCATING VALVE STEM CONNECTED TO SAID VALVE MEANS AND EXTENDING UPWARDLY THROUGH SAID BARREL; MEANS ENGAGED BETWEEN SAID BARREL AND SAID STEM FOR RESTRAINING THE LATTER AGAINST ROTATION; AN ASSEMBLY FOR CLOSING THE UPPER END OF SAID BARREL AND OPERATING SAID VALVE STEM, INCLUDING PLATE MEANS CLOSING AND DETACHABLY CONNECTED TO THE UPPER END OF SAID BARREL, A PAIR OF THREADEDLYENGAGED STEM-OPERATING MEMBERS ALIGNED WITH SAID STEM, ONE SWIVELLY MOUNTED TO SAID PLATE MEANS AND PROJECTING THEREABOVE AND THE OTHER MOUNTED TO SAID PLATE MEANS FOR RECIPROCATION BUT AGAINST ROTATION AND PROJECTING BELOW SAID PLATE MEANS, WHEREBY ROTATION OF SAID ONE MEMBER RECIPROCATES SAID OUTER MEMBER, AND MEANS EFFECTING A LIQUID-TIGHT SEAL BETWEEN SAID OTHER MEMBER AND SAID PLATE MEANS; AND MEANS THREADELY CONNECTING
Claim 2
Dependent Claim
142 words
A FIRE HYDRANT COMPRISING: A BARREL; MAIN HYDRANT VALVE MEANS AT THE LOWER END OF SAID BARREL; A RECIPROCATING VALVE STEM CONNECTED TO SAID VALVE MEANS AND EXTENDING UPWARDLY THROUGH SAID BARREL; MEANS ENGAGED BETWEEN SAID BARREL AND SAID STEM FOR RESTRAINING THE LATTER AGAINST ROTATION; AN ASSEMBLY FOR CLOSING THE UPPER END OF SAID BARREL AND OPERATING SAID VALVE STEM, INCLUDING PLATE MEANS CLOSING AND DETACHABLY CONNECTED TO THE UPPER END OF SAID BARREL, A PAIR OF THREADEDLYENGAGED STEM-OPERATING MEMBERS ALIGNED WITH SAID STEM, ONE SWIVELLY MOUNTED TO SAID PLATE MEANS AND PROJECTING THEREABOVE AND THE OTHER MOUNTED TO SAID PLATE MEANS FOR RECIPROCATION BUT AGAINST ROTATION AND PROJECTING BELOW SAID PLATE MEANS, WHEREBY ROTATION OF SAID ONE MEMBER RECIPROCATES SAID OUTER MEMBER, AND MEANS EFFECTING A LIQUID-TIGHT SEAL BETWEEN SAID OTHER MEMBER AND SAID PLATE MEANS; AND MEANS THREADELY CONNECTING
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |