US3244227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plate type heat exchangers
Assignee: SPX Flow Technology Crawley Ltd
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Filing: 1964-06-09
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Granted: 1966-04-05
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Expires: 1984-06-09
Abstract
No abstract record available.
Inventors
- 👤 John D Usher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:08
CPC Classifications
F; F28; F28F; F28F3/00; F28F3/08; F28F3/10; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/356; Y10S165/364; Y10S165/365; Y10S165/369
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
IN A PLATE TYPE HEAT EXCHANGER, A PACK OF PLATES IN SPACED FACE TO FACE RELATIONSHIP DEFINING FLOW SPACES THEREBETWEEN, ADJACENT FLOW SPACES BEING IN HEAT EXCHANGER RELATIONSHIP THROUGH THE INTERVENING PLATES, EACH PLATE INCLUDING A PERIPHERAL GASKET RECEIVING RECESS, INTERPLATE GASKETS IN SAID RECESSES, AN OUTER WALL ON EACH OF SAID RECESSES, THE OUTER WALL OF THE RECESS OF AT LEAST ONE PLATE BEING FOLDED BACK TO DEFINE A SECONDARY RECESS OPENING IN THE OPPOSITE DIRECTION TO THE GASKET RECEIVING RECESS ALONG AT LEAST PART OF THE LENGTH OF THE SAID GASKET RECEIVING RECESS, A PORTION OF THE GASKET HOUSED IN THE GASKET RECEIVING RECESS IN THE ADJACENT PLATE IN THE SAID DIRECTION HAVING A RAISED SECTION LOCATED IN THE SECONDARY RECESS IN THE SAID AT LEAST ONE PLATE TO PROVIDE ADDITIONAL SUPPORT FOR THE GASKET AGAINST FLUID PRESSURE IN THE FLOW SPACE BETWEEN THE SAID ADJACENT PLATE AND THE SAID AT LEAST ONE PLATE.
Claim 2
Dependent Claim
156 words
IN A PLATE TYPE HEAT EXCHANGER, A PACK OF PLATES IN SPACED FACE TO FACE RELATIONSHIP DEFINING FLOW SPACES THEREBETWEEN, ADJACENT FLOW SPACES BEING IN HEAT EXCHANGER RELATIONSHIP THROUGH THE INTERVENING PLATES, EACH PLATE INCLUDING A PERIPHERAL GASKET RECEIVING RECESS, INTERPLATE GASKETS IN SAID RECESSES, AN OUTER WALL ON EACH OF SAID RECESSES, THE OUTER WALL OF THE RECESS OF AT LEAST ONE PLATE BEING FOLDED BACK TO DEFINE A SECONDARY RECESS OPENING IN THE OPPOSITE DIRECTION TO THE GASKET RECEIVING RECESS ALONG AT LEAST PART OF THE LENGTH OF THE SAID GASKET RECEIVING RECESS, A PORTION OF THE GASKET HOUSED IN THE GASKET RECEIVING RECESS IN THE ADJACENT PLATE IN THE SAID DIRECTION HAVING A RAISED SECTION LOCATED IN THE SECONDARY RECESS IN THE SAID AT LEAST ONE PLATE TO PROVIDE ADDITIONAL SUPPORT FOR THE GASKET AGAINST FLUID PRESSURE IN THE FLOW SPACE BETWEEN THE SAID ADJACENT PLATE AND THE SAID AT LEAST ONE PLATE.
References Cited (Backward Citations)
US502819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |