Patent US3343523A successfully refreshed from Google Patents.
US3343523A
Expired / Lapsed
US
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Vapor generator
Assignee: Foster Wheeler Inc
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Filing: 1965-10-22
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Granted: 1967-09-26
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Walter P Gorzegno
- 👤 Cooper Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:15
CPC Classifications
F; F22; F22B; F22B29/00; F22B29/06; F22B29/061; F22B29/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN ONCE-THROUGH VAPOR GENERATOR COMPRISING A RECTANGULAR VERTICALLY ORIENTED FURNACE ENCLOSURE; THE ENCLOSURE COMPRISING SIDE-BY-SIDE PANEL SECTIONS DEFINING AT LEAST THREE UPFLOW PASSES; EACH PANEL SECTION COMPRISING PARALLEL VERTICALLY ORIENTED FINNED TUBES WELDED TOGETHER THE PANEL SECTIONS BEING WELDED TOGETHER SO THAT THE ENCLOSURE IS ESSENTIALLY GAS-TIGHTG BURNER MEANS RADIANTLY HEATING SAID ENCLOSURE HEADER MEANS CONNECTING THE FLOW PASSES IN SERIES, THE ENTHALPY OF THE FLUID INCREASING IN SUCCESSIVE PASSES; THE PANEL SECTIONS BEING ARRANGED WHEREBY AN INTERMEDIATE ENTHALPY PASS COMPRISING MULTIPLE PANEL SECTIONS IS DISPOSED ON OPPOSITE SIDES OF AN INTERMEDIATE THE PANEL SECTIONS OF THE HIGHER AND LOWER ENTHALPY PASSES.
Claim 2
Dependent Claim
102 words
AN ONCE-THROUGH VAPOR GENERATOR COMPRISING A RECTANGULAR VERTICALLY ORIENTED FURNACE ENCLOSURE; THE ENCLOSURE COMPRISING SIDE-BY-SIDE PANEL SECTIONS DEFINING AT LEAST THREE UPFLOW PASSES; EACH PANEL SECTION COMPRISING PARALLEL VERTICALLY ORIENTED FINNED TUBES WELDED TOGETHER THE PANEL SECTIONS BEING WELDED TOGETHER SO THAT THE ENCLOSURE IS ESSENTIALLY GAS-TIGHTG BURNER MEANS RADIANTLY HEATING SAID ENCLOSURE HEADER MEANS CONNECTING THE FLOW PASSES IN SERIES, THE ENTHALPY OF THE FLUID INCREASING IN SUCCESSIVE PASSES; THE PANEL SECTIONS BEING ARRANGED WHEREBY AN INTERMEDIATE ENTHALPY PASS COMPRISING MULTIPLE PANEL SECTIONS IS DISPOSED ON OPPOSITE SIDES OF AN INTERMEDIATE THE PANEL SECTIONS OF THE HIGHER AND LOWER ENTHALPY PASSES.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |