US3097630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam generator
Assignee: Individual
•
Filing: 1961-02-24
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Granted: 1963-07-16
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Expires: 1981-02-24
Abstract
No abstract record available.
Inventors
- 👤 Brice W Kinyon
- 👤 Graydon D Whitman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:45
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/02; F22B1/06; F22B1/063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A STEAM GENERATOR WHEREIN A HEATING LIQUID IS CIRCULATED OVER THE EXTERIOR OF VERTICALLY-DISPOSED, WATERCONDUCTING TUBES, THE IMPROVED WATER-CONDUCTING TUBE WHICH COMPRISES AN INNER TUBE, AN INTERMEDIATE TUBE HAVING A DIAMETER SLIGHLY LARGER THAN THE DIAMETER OF SAID INNER TUBE AND DISPOSED COAXIALLY THEREWITH, THUS DEFINING A FIRST ANNULUS, AN OUTER TUBE HAVING A DIAMETER SLIGHTLY LARGER THAN THE DIAMETER OF SAID INTERMEDIATE TUBE AND DISPOSED COAXIALLY THEREWITH, THUS DEFINING A SECOND ANNULUS, MEANS TO DIRECT A FLOW OF FEED WATER UPWARDLY THROUGH SAID FIRST ANNULUS, MEANS LOCATED AT THE UPPER END OF SAID FIRST ANNULUS TO DIRECT THE FLOW OF WATER DOWNWARDLY INTO THE INTERIOR OF SAID INNER TUBE AND PERMIT SEPARATION OF STEAM THEREFORM, AND A STEAM
Claim 2
Dependent Claim
120 words
IN A STEAM GENERATOR WHEREIN A HEATING LIQUID IS CIRCULATED OVER THE EXTERIOR OF VERTICALLY-DISPOSED, WATERCONDUCTING TUBES, THE IMPROVED WATER-CONDUCTING TUBE WHICH COMPRISES AN INNER TUBE, AN INTERMEDIATE TUBE HAVING A DIAMETER SLIGHLY LARGER THAN THE DIAMETER OF SAID INNER TUBE AND DISPOSED COAXIALLY THEREWITH, THUS DEFINING A FIRST ANNULUS, AN OUTER TUBE HAVING A DIAMETER SLIGHTLY LARGER THAN THE DIAMETER OF SAID INTERMEDIATE TUBE AND DISPOSED COAXIALLY THEREWITH, THUS DEFINING A SECOND ANNULUS, MEANS TO DIRECT A FLOW OF FEED WATER UPWARDLY THROUGH SAID FIRST ANNULUS, MEANS LOCATED AT THE UPPER END OF SAID FIRST ANNULUS TO DIRECT THE FLOW OF WATER DOWNWARDLY INTO THE INTERIOR OF SAID INNER TUBE AND PERMIT SEPARATION OF STEAM THEREFORM, AND A STEAM
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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |