US3167113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equalization of loads on heat exchangers
Assignee: Phillips Petroleum Co
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Filing: 1962-09-13
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Granted: 1965-01-26
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Expires: 1982-09-13
Abstract
No abstract record available.
Inventors
- 👤 Louis D Kleiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:31
CPC Classifications
F; F28; F28F; F28F27/00; F28F27/02; F25; F25J; F25J3/00; F25J3/06; F25J3/0605; F25J3/061; F25J3/063; F25J3/0635; F25J3/066; F25J3/0685; F25J3/069; F25J3/0695; F25J2210/00; F25J2210/06; F25J2290/00; F25J2290/50
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
95 words
IN A HEAT EXCHANGE PROCESS WHEREIN A FIRST FLUID IS PASSED THROUGH A PLURALITY OF HEAT EXCHANGERS IN PARALLEL AND WHEREIN A PLURALITY OF SECOND FLUIDS ARE PASED THROUGH RESPECTIVE ONES OF SAID HEAT EXCHANGERS IN HEAD EXCHANGE RELATIONSHIP WITH SAID FIRST FLUID; A METHOD OF CONTROL WHICH COMPRISES COMPUTING THE PERFORMANCES OF EACH OF SAID HEAT EXCHANGERS, EACH OF SAID PERFORMANCES BEING COMPUTED BY MEASURING THE TEMPERATURE DIFFERENTIAL BETWEEN FIRST AND SECOND FLUIDS IN EACH HEAT EXCHANGER; COMPUTING THE AVERAGE PERFORMANCE OF SAID PLURALITY OF HEAT EXCHANGERS FROM THE COMPUTED PERFORMANCES OF EACH OF
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) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |