Patent US3076443A successfully refreshed from Google Patents.
US3076443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: MITCHELL ENGINEERING Ltd
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Filing: 1959-06-17
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Granted: 1963-02-05
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Expires: 1979-06-17
Abstract
No abstract record available.
Inventors
- 👤 Coles Harold John
- 👤 Sutherland John Mackintosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:39
CPC Classifications
G; G21; G21C; G21C15/00; G21C15/16; F; F22; F22B; F22B1/00; F22B1/02; F22B1/08; F22B1/12; F22B1/123; F22B37/00; F22B37/02; F22B37/26; F22B37/32; F22B37/327; F22D; F22D1/00; F22D1/02; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
248 words
A HEAT EXCHANGER WHEREIN A LIQUID IS VAPORIZED BY HEAT EXCHANGE WITH A HOT FLUID MEDIUM, COMPRISING A LOWER CASING HAVING A CLOSED LOWER END, AN UPPER CASING HAVING A CLOSED UPPER END, A FIRST TUBE PLATE SECURED BETWEEN AND SEPARATING THE CASINGS TO DEFINE THEREWITH LOWER AND UPPER CLOSED CHAMBERS, THE LOWER CHAMBER HAVING AN INLET THERETO AND AN OUTLET THEREFROM FOR THE FLUID MEDIUM, A PLURALITY OF FIRST TUBES SEALED IN HOLES IN THE TUBE PLATE AND EXTENDING DOWNWARDLY TOWARDS THE LOWER END OF THE LOWER CHAMBER, SAID FIRST TUBES BEING OPEN AT THEIR UPPER ENDS TO THE UPPER CHAMBER AND BEING CLOSED AT THEIR LOWER ENDS, A SECOND TUBE PLATE MOUNTED WITHIN THE UPPER CHAMBER ABOVE AND IN SPACED RELATION TO THE FIRST TUBE PLATE, SAID SECOND TUBE PLATE HAVING ITS PERIPHERY SPACED FROM THE UPPER CASING, A PLURALITY OF SECOND TUBES SEALED IN HOLES IN THE SECOND TUBE PLATE AND EXTENDING DOWNWARDLY THEREFROM COAXIALLY INTO THE FIRST TUBES TO ADJACENT THEIR LOWER ENDS, EACH SECOND TUBE BEING OPEN AT EACH END, A CYLINDRICAL BAFFLE ACCOMMODATED WITHIN THE UPPER CHAMBER AND EXTENDING UPWARDLY FROM THE PERIPHERY OF THE SECOND TUBE PLATE IN SPACED RELATION TO THE UPPER CASING, SAID CYLINDRICAL BAFFLE AND SAID SECOND TUBE PLATE TOGETHER DEFINING A WELL, SAID CYLINDRICAL BAFFLE HAVING AN UPPER EDGE SPACED VERTICALLY AWAY FROM THE UPPER END OF THE UPPER CASING, A LIQUID SUPPLY PIPE HAVING AN OUTLET DELIVERING THE LIQUID INTO THE WELL AT A LEVEL SUBSTANTIALLY
Claim 2
Dependent Claim
248 words
A HEAT EXCHANGER WHEREIN A LIQUID IS VAPORIZED BY HEAT EXCHANGE WITH A HOT FLUID MEDIUM, COMPRISING A LOWER CASING HAVING A CLOSED LOWER END, AN UPPER CASING HAVING A CLOSED UPPER END, A FIRST TUBE PLATE SECURED BETWEEN AND SEPARATING THE CASINGS TO DEFINE THEREWITH LOWER AND UPPER CLOSED CHAMBERS, THE LOWER CHAMBER HAVING AN INLET THERETO AND AN OUTLET THEREFROM FOR THE FLUID MEDIUM, A PLURALITY OF FIRST TUBES SEALED IN HOLES IN THE TUBE PLATE AND EXTENDING DOWNWARDLY TOWARDS THE LOWER END OF THE LOWER CHAMBER, SAID FIRST TUBES BEING OPEN AT THEIR UPPER ENDS TO THE UPPER CHAMBER AND BEING CLOSED AT THEIR LOWER ENDS, A SECOND TUBE PLATE MOUNTED WITHIN THE UPPER CHAMBER ABOVE AND IN SPACED RELATION TO THE FIRST TUBE PLATE, SAID SECOND TUBE PLATE HAVING ITS PERIPHERY SPACED FROM THE UPPER CASING, A PLURALITY OF SECOND TUBES SEALED IN HOLES IN THE SECOND TUBE PLATE AND EXTENDING DOWNWARDLY THEREFROM COAXIALLY INTO THE FIRST TUBES TO ADJACENT THEIR LOWER ENDS, EACH SECOND TUBE BEING OPEN AT EACH END, A CYLINDRICAL BAFFLE ACCOMMODATED WITHIN THE UPPER CHAMBER AND EXTENDING UPWARDLY FROM THE PERIPHERY OF THE SECOND TUBE PLATE IN SPACED RELATION TO THE UPPER CASING, SAID CYLINDRICAL BAFFLE AND SAID SECOND TUBE PLATE TOGETHER DEFINING A WELL, SAID CYLINDRICAL BAFFLE HAVING AN UPPER EDGE SPACED VERTICALLY AWAY FROM THE UPPER END OF THE UPPER CASING, A LIQUID SUPPLY PIPE HAVING AN OUTLET DELIVERING THE LIQUID INTO THE WELL AT A LEVEL SUBSTANTIALLY
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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |