US2916358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for detecting carbon monoxide
Assignee: Coal Industry Patents Ltd
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Filing: 1957-07-29
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Granted: 1959-12-08
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Expires: 1977-07-29
Abstract
No abstract record available.
Inventors
- 👤 Valentine Reginald
- 👤 Harold G Glover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:08
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/14; G01N27/16; Y; Y10; Y10T; Y10T436/00; Y10T436/20; Y10T436/204998; Y10T436/205831
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
APPARATUS FOR THE DETECTION OF CARBON MONOXIDE IN AN ATMOSPHERE, COMPRISING A CONDUIT THROUGH WHICH A SAMPLE OF THE ATMOSPHERE CAN BE PASSED A MASS OF THERMAL INSULTING MATERIAL IN SAID CONDUIT, A MASS OF OXIDISER IN SAID INSULATING MATERIAL, A PAIR OF THERMISTOR THE TEMPERATURE SENSITIVE PORTION OF EACH OF WHICH LIES WITHIN SAID CONDUIT SAID THERMISTORS AND SAID MASS OF OXIDISER BEING ARRANGED SUCH THAT THE TENPERATURE SENSITIVE PORTION OF ONE ONLY OF SAID THERMISTORS LIES WITHIN SAID MASS OF OXIDER AND SAID MASS OF OXIDISER IS SITUATED DOWNSTREAM OF SAID CONDUIT WITH RESPECT OT THE TEMPERATURE SENSITIVE OF THE OTHER OF SAID THERMISTORS, AND A HEAT EXCHANGER THROUGH WHICH SAID SAMPLE CAN BE PASSED BEFORE ENTERING SAID CONDUIT, SAID HEAT EXCHANGER HAVING A VERY HIGH HEAT CAPACITY COMPARED TO THE CONDUIT AND ITS CONTENTS AND A HIGH THERMAL CONDUCTIVITY ALONG ITS LENGHT, SAID HEAT EXCHANGER SURROUNDING SAID CONDUIT AND BEING ARRANGED SUCH AS TO EFFECT HEAT EXCHANGE BETWEEN THAT PORTION OF SAID SAMPLE WHICH AT ANY GIVEN INSTANT IS IN
Claim 2
Dependent Claim
173 words
APPARATUS FOR THE DETECTION OF CARBON MONOXIDE IN AN ATMOSPHERE, COMPRISING A CONDUIT THROUGH WHICH A SAMPLE OF THE ATMOSPHERE CAN BE PASSED A MASS OF THERMAL INSULTING MATERIAL IN SAID CONDUIT, A MASS OF OXIDISER IN SAID INSULATING MATERIAL, A PAIR OF THERMISTOR THE TEMPERATURE SENSITIVE PORTION OF EACH OF WHICH LIES WITHIN SAID CONDUIT SAID THERMISTORS AND SAID MASS OF OXIDISER BEING ARRANGED SUCH THAT THE TENPERATURE SENSITIVE PORTION OF ONE ONLY OF SAID THERMISTORS LIES WITHIN SAID MASS OF OXIDER AND SAID MASS OF OXIDISER IS SITUATED DOWNSTREAM OF SAID CONDUIT WITH RESPECT OT THE TEMPERATURE SENSITIVE OF THE OTHER OF SAID THERMISTORS, AND A HEAT EXCHANGER THROUGH WHICH SAID SAMPLE CAN BE PASSED BEFORE ENTERING SAID CONDUIT, SAID HEAT EXCHANGER HAVING A VERY HIGH HEAT CAPACITY COMPARED TO THE CONDUIT AND ITS CONTENTS AND A HIGH THERMAL CONDUCTIVITY ALONG ITS LENGHT, SAID HEAT EXCHANGER SURROUNDING SAID CONDUIT AND BEING ARRANGED SUCH AS TO EFFECT HEAT EXCHANGE BETWEEN THAT PORTION OF SAID SAMPLE WHICH AT ANY GIVEN INSTANT IS IN
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) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |