Patent US3165146A successfully refreshed from Google Patents.
US3165146A
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US
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Temperature control system
Assignee: Phillips Petroleum Co
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Filing: 1962-06-07
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Granted: 1965-01-12
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Expires: 1982-06-07
Abstract
No abstract record available.
Inventors
- 👤 Dexter E Smith
- 👤 Lewis B Roof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:39
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/26; G01N30/28; G01N30/30; G05; G05D; G05D23/00; G05D23/19; G05D23/1919; G05D23/20; G05D23/22; G01N2030/3084
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
116 words
A METHOD FOR MAINTAINING THE TEMPERATURE OF AN OBJECT AT A SUBSTANTIALLY CONSTANT VALUE WITHIN THE NORMAL RANGE OF AMBIENT TEMPERATURE WHICH COMPRISES PROVIDING A SOURCE OF FLUID AT AMBIENT TEMPERATURE, HEATING IN A CONSTANT TEMPERATURE ELECTRICAL HEATING ZONE A FIRST PORTION OF THE FLUID FROM SAID SOURCE TO A TEMPERATURE HIGHER THAN SAID VALUE, COMBINING THE THUS HEATED FIRST PORTION WITH A SECOND PORTION OF THE FLUID FROM SAID SOURCE, COOLING THE THUS COMBINED FLUID TO SAID VALUE, PASSING THE THUS COOLED FLUID IN HEAT EXCHANGING RELATIONSHIP WITH SAID OBJECT, AND MANIPULATING THE RATIO OF THE AMOUNT OF SAID FIRST PORTION TO THE AMOUNT OF SAID SECOND PORTION RESPONSIVE TO THE TEMPERATURE OF SAID OBJECT.
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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) | 1968-01-12 | 1968-07-13 | 1969-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-12 | 1972-07-13 | 1973-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-12 | 1976-07-13 | 1977-01-12 | $7700.00 | Window Closed / Lapsed |