Patent US3299700A successfully refreshed from Google Patents.
Patent US3168103A successfully refreshed from Google Patents.
US3168103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe line vent
Assignee: United States Steel Corp
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Filing: 1962-06-22
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Granted: 1965-02-02
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Expires: 1982-06-22
Abstract
No abstract record available.
Inventors
- 👤 Theodore M Kochaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:44
CPC Classifications
F; F16; F16K; F16K24/00; F16K24/04; F16K24/042; F16K24/048; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/309; Y10T137/3099
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
AN ATMOSPHERIC VENT FOR PREVENTING AIR AND VACUUM LOCKS AT AN INTERMEDIATE POINT OF HIGH ELEVATION IN A PIPE LINE FOR TRANSPORTING FLUIDS COMPRISING A VALVE MECHANISM FOR VENTING SAID PIPE LINE TO THE ATMOSPHERE, A HOUSING FOR SAID VALVE MECHANISM CONNECTED IN AND FORMING A PART OF SAID LINE AT SAID HIGH POINT, AND MEANS MOUNTING SAID VALVE MECHANISM IN SAID HOUSING, THE CROSS-SECTIONAL AREA OF SAID HOUSING BEING LARGER THAN THE CROSS-SECTIONAL AREA OF SAID PIPE BY AN AMOUNT NOT SUBSTANTIALLY GREATER THAN THE CROSS-SECTIONAL AREA OCCUPIED BY SAID VALVE MECHANISM SO THAT FLUID TRAVELLING THROUGH SAID LINE FLOWS THROUGH ALL PARTS OF THE INTERIOR OF SAID HOUSING TO PREVENT ITS FREEZING WHEN SAID HOUSING IS SUBJECT TO SUBFREEZING TEMPERATURES.
Claim 2
Dependent Claim
122 words
AN ATMOSPHERIC VENT FOR PREVENTING AIR AND VACUUM LOCKS AT AN INTERMEDIATE POINT OF HIGH ELEVATION IN A PIPE LINE FOR TRANSPORTING FLUIDS COMPRISING A VALVE MECHANISM FOR VENTING SAID PIPE LINE TO THE ATMOSPHERE, A HOUSING FOR SAID VALVE MECHANISM CONNECTED IN AND FORMING A PART OF SAID LINE AT SAID HIGH POINT, AND MEANS MOUNTING SAID VALVE MECHANISM IN SAID HOUSING, THE CROSS-SECTIONAL AREA OF SAID HOUSING BEING LARGER THAN THE CROSS-SECTIONAL AREA OF SAID PIPE BY AN AMOUNT NOT SUBSTANTIALLY GREATER THAN THE CROSS-SECTIONAL AREA OCCUPIED BY SAID VALVE MECHANISM SO THAT FLUID TRAVELLING THROUGH SAID LINE FLOWS THROUGH ALL PARTS OF THE INTERIOR OF SAID HOUSING TO PREVENT ITS FREEZING WHEN SAID HOUSING IS SUBJECT TO SUBFREEZING TEMPERATURES.
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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |