US2779666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halide detector
Assignee: Union Carbide Corp
•
Filing: 1953-05-22
•
Granted: 1957-01-29
•
Expires: 1973-05-22
Abstract
No abstract record available.
Inventors
- 👤 Clifford C Anthes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:45
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; G; G01; G01N; G01N21/00; G01N21/62; G01N21/71; G01N21/72; Y; Y10; Y10T; Y10T436/00; Y10T436/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
IN A HALIDE DETECTOR HAVING A FLAME NOZZLE, A METAL REACTIOIN MEMBER ADJACENT SAID NOZZLE FOR BEING HEATED THEREBY, A FUEL GAS CONNECTION TO SAID NOZZLE, AND A CONNECTION FOR INTRODUCING AIR TO SAID NOZZLE, SAID NOZZLE BEING OF THE TYPE FOR HEATING SAID REACTION MEMBER TO A DULL RED HEAT WITH A SUBSTANTIALLY COLORLESS FLAME, THE COMBINATION THEREWITH OF THE IMPROVEMENT FOR ENCHANCING THE SENSITIVITY OF SAID DETECTOR, SAID IMPROVEMENT INCLUDING SAID REACTION MEMBER HAVING A SMALL AMOUNT OF SODIUM IN NON-VOLATILE FORM AT A DULL RED HEAT IN QUANTITY TO GIVE NO YELLOW COLOR TO A FLAME FROM SAID NOZZLE IN THE ABSENCE OF A GAS SELECTED FROM THE GROUP CONSISTING OF HALOGENS AND HALIDES IN AIR SUPPLIED TO SAID FLAME AFTER ANY VOLATILE SODIUM HAS BEEN BURNED OFF AT SAID DULL RED HEAT, BUT IN QUANTITY LARGE ENOUGH TO GIVE A YELLOW COLOR TO SAID FLAME AT SAID DULL RED HEAT WHEN A GAS SELECTED FROM THE GROUP
Claim 2
Dependent Claim
161 words
IN A HALIDE DETECTOR HAVING A FLAME NOZZLE, A METAL REACTIOIN MEMBER ADJACENT SAID NOZZLE FOR BEING HEATED THEREBY, A FUEL GAS CONNECTION TO SAID NOZZLE, AND A CONNECTION FOR INTRODUCING AIR TO SAID NOZZLE, SAID NOZZLE BEING OF THE TYPE FOR HEATING SAID REACTION MEMBER TO A DULL RED HEAT WITH A SUBSTANTIALLY COLORLESS FLAME, THE COMBINATION THEREWITH OF THE IMPROVEMENT FOR ENCHANCING THE SENSITIVITY OF SAID DETECTOR, SAID IMPROVEMENT INCLUDING SAID REACTION MEMBER HAVING A SMALL AMOUNT OF SODIUM IN NON-VOLATILE FORM AT A DULL RED HEAT IN QUANTITY TO GIVE NO YELLOW COLOR TO A FLAME FROM SAID NOZZLE IN THE ABSENCE OF A GAS SELECTED FROM THE GROUP CONSISTING OF HALOGENS AND HALIDES IN AIR SUPPLIED TO SAID FLAME AFTER ANY VOLATILE SODIUM HAS BEEN BURNED OFF AT SAID DULL RED HEAT, BUT IN QUANTITY LARGE ENOUGH TO GIVE A YELLOW COLOR TO SAID FLAME AT SAID DULL RED HEAT WHEN A GAS SELECTED FROM THE GROUP
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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) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |