US3102513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for controlling rate of temperature changes of heat generators during startup and shutdown
Assignee: Sulzer AG
•
Filing: 1959-08-19
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Granted: 1963-09-03
•
Expires: 1979-08-19
Abstract
No abstract record available.
Inventors
- 👤 Profos Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:14
CPC Classifications
F; F22; F22B; F22B35/00; F22B35/004; D; D01; D01G; D01G1/00; D01G1/02; D01G1/04; F01; F01K; F01K3/00; F01K3/18; F01K3/20; F01K3/22; F22B21/00; F22B21/34; F22B35/06; F22B35/10; F22B35/14; F22G; F22G5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN THE STARTING UP AND SHUTTING DOWN OF A HEAT TRANSFER SYSTEM, THE METHOD OF OPERATING A HEAT EXCHANGER IN SAID SYSTEM HAVING A HEAT EXCHANGE SURFACE EXPOSED ON ONE SIDE TO A VARIABLE SOURCE OF HEAT AND EXPOSED ON ITS OTHER SIDE TO A HEAT ABSORBING MEDIUM FLOWING THROUGH A CHANNEL DEFINED IN PART BY SAID SURFACE AND HAVING OUTLET PORTS UPSTREAM AND DOWNSTREAM OF SAID SURFACE WHICH COMPRISES MEASURING THE TIME RATE OF CHANGE OF TEMPERATURE OF SAID SURFACE, DECREASING THE OPENING OF SAID UPSTREAM PORT AND INCREASING THE OPENING OF SAID DOWNSTREAM PORT UPON RISE IN SAID RATE ABOVE AN UPPER LIMITING VALUE, AND INCREASING THE OPENING OF SAID UPSTREAM PORT AND DECREASING THE OPENING OF SAID DOWNSTREAM PORT UPON FALL IN SAID RATE BELOW A LOWER LIMITING VALUE.
Claim 2
Dependent Claim
132 words
IN THE STARTING UP AND SHUTTING DOWN OF A HEAT TRANSFER SYSTEM, THE METHOD OF OPERATING A HEAT EXCHANGER IN SAID SYSTEM HAVING A HEAT EXCHANGE SURFACE EXPOSED ON ONE SIDE TO A VARIABLE SOURCE OF HEAT AND EXPOSED ON ITS OTHER SIDE TO A HEAT ABSORBING MEDIUM FLOWING THROUGH A CHANNEL DEFINED IN PART BY SAID SURFACE AND HAVING OUTLET PORTS UPSTREAM AND DOWNSTREAM OF SAID SURFACE WHICH COMPRISES MEASURING THE TIME RATE OF CHANGE OF TEMPERATURE OF SAID SURFACE, DECREASING THE OPENING OF SAID UPSTREAM PORT AND INCREASING THE OPENING OF SAID DOWNSTREAM PORT UPON RISE IN SAID RATE ABOVE AN UPPER LIMITING VALUE, AND INCREASING THE OPENING OF SAID UPSTREAM PORT AND DECREASING THE OPENING OF SAID DOWNSTREAM PORT UPON FALL IN SAID RATE BELOW A LOWER LIMITING VALUE.
References Cited (Backward Citations)
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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) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |