US3247899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plate type heat exchanger
Assignee: United Aircraft Products Inc
•
Filing: 1963-04-10
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Granted: 1966-04-26
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Expires: 1983-04-10
Abstract
No abstract record available.
Inventors
- 👤 Harvey C Branch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:18
CPC Classifications
F; F28; F28D; F28D9/00; F28D9/0062; F28F; F28F2275/00; F28F2275/04; F28F2275/06; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/356; Y10S165/387; Y10S165/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A PLATE TYPE HEAT EXCHANGER COMPRISING SUPERPOSED FLAT PARTING SHEETS, AND BAR SPACERS BETWEEN SAID SHEETS, EACH OF SAID SPACERS BEING AN ELONGATED MEMBER HAVING AN ENLARGED TAB AT EACH END PROJECTING OUTWARDLY OF THE PLANE OF THE SPACER IN TWO DIRECTIONS AT RIGHT ANGLES TO ONE ANOTHER, SAID SPACERS BEING PROVIDED IN LATERALLY SPACED APART PAIRS BETWEEN ADJACENT SHEETS WITH VERTICALLY ADJACENT PAIRS OF SPACERS BEING AT RIGHT ANGLES TO ONE ANOTHER, ADJACENT LIKE TABS OF UNDERLYING AND OVERLYING BAR SPACERS BEING ALIGNED WITH ONE ANOTHER, SAID PARTING SHEETS HAVING PROJECTED PORTIONS RECEIVED BETWEEN SAID TABS IN ALTERNATING RELATION THERETO AND DEFINING WITH SAID TABS CONTINUOUS VERTICAL MOUNTING COLUMNS EACH HAVING PROJECTED FACES AT RIGHT ANGLES TO ONE ANOTHER.
Claim 2
Dependent Claim
120 words
A PLATE TYPE HEAT EXCHANGER COMPRISING SUPERPOSED FLAT PARTING SHEETS, AND BAR SPACERS BETWEEN SAID SHEETS, EACH OF SAID SPACERS BEING AN ELONGATED MEMBER HAVING AN ENLARGED TAB AT EACH END PROJECTING OUTWARDLY OF THE PLANE OF THE SPACER IN TWO DIRECTIONS AT RIGHT ANGLES TO ONE ANOTHER, SAID SPACERS BEING PROVIDED IN LATERALLY SPACED APART PAIRS BETWEEN ADJACENT SHEETS WITH VERTICALLY ADJACENT PAIRS OF SPACERS BEING AT RIGHT ANGLES TO ONE ANOTHER, ADJACENT LIKE TABS OF UNDERLYING AND OVERLYING BAR SPACERS BEING ALIGNED WITH ONE ANOTHER, SAID PARTING SHEETS HAVING PROJECTED PORTIONS RECEIVED BETWEEN SAID TABS IN ALTERNATING RELATION THERETO AND DEFINING WITH SAID TABS CONTINUOUS VERTICAL MOUNTING COLUMNS EACH HAVING PROJECTED FACES AT RIGHT ANGLES TO ONE ANOTHER.
References Cited (Backward Citations)
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Cited
FR1125663A
Cited
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Cited
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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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |