US3165147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature control of a confined space
Assignee: Phillips Petroleum Co
•
Filing: 1962-12-13
•
Granted: 1965-01-12
•
Expires: 1982-12-13
Abstract
No abstract record available.
Inventors
- 👤 Lewis B Roof
- 👤 Marvin E Reinecke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:59
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; G05D23/24; G01N2030/3084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE METHOD OF MAINTAINING THE INTERIOR OF AN INSULATED HOUSING AT A CONSTANT TEMPERATURE WHICH COMPRISES ADDING A CONSTANT AMOUNT OF HEAT TO THE INTERIOR OF SAID HOUSING BY MEANS OF A HEATING ELEMENT; COOLING A STREAM OF AIR; INTRODUCING SAID STREAM OF AIR TO THE INTERIOR OF SAID HOUSING; RECIRCULATING THE AIR IN SAID HOUSING; EXHAUSTING AIR FROM SAID HOUSING AT THE RATE IT IS INTRODUCED; CONTINUOUSLY SENSING THE TEMPERATURE OF THE INTERIOR OF SAID HOUSING; AND ADDING HEAT TO SAID AIR STREAM IN AN AMOUNT SUFFICIENT TO MAINTAIN THE SENSED TEMPERATURE OF THE INTERIOR OF SAID HOUSING CONSTANT.
Claim 2
Independent Claim
100 words
THE METHOD OF MAINTAINING THE INTERIOR OF AN INSULATED HOUSING AT A CONSTANT TEMPERATURE WHICH COMPRISES ADDING A CONSTANT AMOUNT OF HEAT TO THE INTERIOR OF SAID HOUSING BY MEANS OF A HEATING ELEMENT; COOLING A STREAM OF AIR; INTRODUCING SAID STREAM OF AIR TO THE INTERIOR OF SAID HOUSING; RECIRCULATING THE AIR IN SAID HOUSING; EXHAUSTING AIR FROM SAID HOUSING AT THE RATE IT IS INTRODUCED; CONTINUOUSLY SENSING THE TEMPERATURE OF THE INTERIOR OF SAID HOUSING; AND ADDING HEAT TO SAID AIR STREAM IN AN AMOUNT SUFFICIENT TO MAINTAIN THE SENSED TEMPERATURE OF THE INTERIOR OF SAID HOUSING CONSTANT.
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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 |