Patent US3338053A successfully refreshed from Google Patents.
US3338053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Once-through vapor generator start-up system
Assignee: Foster Wheeler Inc
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Filing: 1963-05-20
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Granted: 1967-08-29
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Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 Walter P Gorzegno
- 👤 Albert J Zipay
- 👤 William D Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:00
CPC Classifications
F; F01; F01K; F01K3/00; F01K3/18; F01K3/20; F01K3/22; F22; F22B; F22B35/00; F22B35/06; F22B35/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A ONCE-THROUGH VAPOR GENERATOR COMPRISING A MAIN FLOW PATH INCLUDING, IN SERIES FLOW RELATIONSHIP, VAPOR GENERATING AND SUPERHEATING SURFACES; PRESSURE REDUCING MEANS IN SAID MAIN FLOW PATH BETWEEN VAPOR GENERATING SURFACE AND SUPERHEATING SURFACE; FLOW RECEIVING AND VAPOR SEPARATION MEANS OPERATIVELY CONNECTED WITH SAID MAIN FLOW PATH, THE POINT OF CONNECTION BEING SPACED FROM SAID PRESSURE REDUCING MEANS BY AT LEAST A PORTION OF SAID VAPOR GENERATING AND SUPERHEATING SURFACES WHEREBY THE FLOW THROUGH SAID PRESSURE REDUCING MEANS IS HEATED IN SAID PORTION BEFORE FLOWING TO SAID FLOW RECEIVING AND VAPOR SEPARATION MEANS; LIQUID BY-PASS CONDUIT MEANS CONNECTED TO SAID FLOW RECEIVING AND VAPOR SEPARATION MEANS TO HANDLE LIQUID FLOW THEREFROM; AND SEPARATE VAPOR BY-PASS CONDUIT MEANS CONNECTED TO SAID FLOW RECEIVING AND VAPOR SEPARATION MEANS TO HANDLE THE VAPOR FLOW THEREFROM.
Claim 2
Dependent Claim
132 words
A ONCE-THROUGH VAPOR GENERATOR COMPRISING A MAIN FLOW PATH INCLUDING, IN SERIES FLOW RELATIONSHIP, VAPOR GENERATING AND SUPERHEATING SURFACES; PRESSURE REDUCING MEANS IN SAID MAIN FLOW PATH BETWEEN VAPOR GENERATING SURFACE AND SUPERHEATING SURFACE; FLOW RECEIVING AND VAPOR SEPARATION MEANS OPERATIVELY CONNECTED WITH SAID MAIN FLOW PATH, THE POINT OF CONNECTION BEING SPACED FROM SAID PRESSURE REDUCING MEANS BY AT LEAST A PORTION OF SAID VAPOR GENERATING AND SUPERHEATING SURFACES WHEREBY THE FLOW THROUGH SAID PRESSURE REDUCING MEANS IS HEATED IN SAID PORTION BEFORE FLOWING TO SAID FLOW RECEIVING AND VAPOR SEPARATION MEANS; LIQUID BY-PASS CONDUIT MEANS CONNECTED TO SAID FLOW RECEIVING AND VAPOR SEPARATION MEANS TO HANDLE LIQUID FLOW THEREFROM; AND SEPARATE VAPOR BY-PASS CONDUIT MEANS CONNECTED TO SAID FLOW RECEIVING AND VAPOR SEPARATION MEANS TO HANDLE THE VAPOR FLOW THEREFROM.
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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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |