US4542764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leak containment kit
Assignee: EIDP Inc
•
Filing: 1983-09-06
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Granted: 1985-09-24
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Expires: 2003-09-06
Abstract
Abstract A leak containment kit for tank cars is disclosed. The kit is bolted to the manway cover of the tank car and surrounds all of the valves mounted on the manway cover. The kit provides means to connect each of the valves on the manway cover with a valve mounted on the external of the main body of the leak containment kit.
Inventors
- 👤 Donald Brittingham
- 👤 George P. Fletcher
- 👤 Harvey J. Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:00
CPC Classifications
B; B61; B61D; B61D5/00; B61D5/08; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6855; Y10T137/6866; Y10T137/8593; Y10T137/86348; Y10T137/86372
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
112 words
A leak containment kit for a railway tank car comprising an open ended cylindrical main body having on its bottom end an external flange adapted to be attached and sealed to a manway cover on the tank car, a plurality of threaded connectors in the wall of said main body, each adapted externally of the cylindrical main body to connect to a valve and internally to connect to a hollow member which is connected to a tank car loading/unloading valve mounted on said manway cover, a cover having on its open end an external flange adapted to be attached and sealed to a flange on the top of the cylindrical main body.
Claim 2
Dependent Claim
112 words
A leak containment kit for a railway tank car comprising an open ended cylindrical main body having on its bottom end an external flange adapted to be attached and sealed to a manway cover on the tank car, a plurality of threaded connectors in the wall of said main body, each adapted externally of the cylindrical main body to connect to a valve and internally to connect to a hollow member which is connected to a tank car loading/unloading valve mounted on said manway cover, a cover having on its open end an external flange adapted to be attached and sealed to a flange on the top of the cylindrical main body.
Claim 3
Dependent Claim
22 words
The leak containment kit of claim 1 wheren the hollow member which is connected to the tank car loading/unloading valve is flexible.
References Cited (Backward Citations)
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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) | 1988-09-23 | 1989-03-25 | 1989-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-23 | 1993-03-25 | 1993-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-23 | 1997-03-25 | 1997-09-24 | $7700.00 | Window Closed / Lapsed |