US3195625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger plate and seal
Assignee: Individual
•
Filing: 1961-11-08
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Granted: 1965-07-20
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Expires: 1981-11-08
Abstract
No abstract record available.
Inventors
- 👤 Meredith C Thomson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:03
CPC Classifications
F; F28; F28F; F28F3/00; F28F3/08; F28F3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PLATE-TYPE HEAT EXCHANGER ASSEMBLY INCLUDING A PLURALITY OF PLATES EACH HAVING A PASS AREA, A GASKET SURROUNDING THE PASS OF EACH PLATE AND DISPOSED BETWEEN ADJACENT PLATES SO AS TO DEFINE A FLOW PATH BETWEEN THE PLATES AND GASKET, SAID GASKET BEING RIGIDLY SECURED TO AND FORMING A GENERALLY UNITARY ASSEMBLY WITH A RIGID MEMBER SURROUNDING THE OUTER PERIPHERY OF THE GASKET, SAID RIGID MEMBER HAVING OPPOSITELY FACING PLANAR FACES ARRANGED IN METAL-TO-METAL CONTACT WITH EACH PAIR OF ADJACENT PLATES AND FORMING WITH SAID PLATES A RIGID METAL-TO-METAL STACKED ARRANGEMENT OF SAID PLATES AND SAID RIGID MEMBERS, AND
Claim 2
Dependent Claim
99 words
A PLATE-TYPE HEAT EXCHANGER ASSEMBLY INCLUDING A PLURALITY OF PLATES EACH HAVING A PASS AREA, A GASKET SURROUNDING THE PASS OF EACH PLATE AND DISPOSED BETWEEN ADJACENT PLATES SO AS TO DEFINE A FLOW PATH BETWEEN THE PLATES AND GASKET, SAID GASKET BEING RIGIDLY SECURED TO AND FORMING A GENERALLY UNITARY ASSEMBLY WITH A RIGID MEMBER SURROUNDING THE OUTER PERIPHERY OF THE GASKET, SAID RIGID MEMBER HAVING OPPOSITELY FACING PLANAR FACES ARRANGED IN METAL-TO-METAL CONTACT WITH EACH PAIR OF ADJACENT PLATES AND FORMING WITH SAID PLATES A RIGID METAL-TO-METAL STACKED ARRANGEMENT OF SAID PLATES AND SAID RIGID MEMBERS, AND
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |