US3683670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atmosphere analyzer working by variation of the combustion front
Assignee: Individual
•
Filing: 1970-02-05
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Granted: 1972-08-15
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Expires: 1990-02-05
Abstract
Abstract An atmosphere analyzer operates by variation of the combustion front. The analyzer includes a main or pilot burner having an inlet and a nozzle. A thermosensor is held centrally within the nozzle by a flame shaping member which forms a flame having the shape of a star with three or more points. The inner vertices of the star are situated near the thermosensor and the other vertices near the walls of the nozzle.
Inventors
- 👤 Joaquin M Iriondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:28
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/20; G01N25/22; G01N25/28; F; F23; F23Q; F23Q9/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
150 words
An atmosphere analyzer operating by the variation of the combustion front, said analyzer comprising a burner having an inlet and a round nozzle communicating with said inlet, and having an open top, a thermosensor located in the middle of said nozzle and having an end extending beyond said top, a flameshaping part located within said nozzle adjacent said top and engaging said thermosensor and the inner walls of said nozzle adjacent said top, said flame-shaping part having at least three flame-shaping passages extending radially star-like between said thermosensor and said inner walls, and means injecting a fuel into said inlet wherein it is mixed with air and ignited, whereby a flame is formed which extends star-shaped around said thermosensor and beyond said top with the inner vertices of the star-shaped flame being located adjacent said thermosensor and the outer vertices of the star-shaped flame being located adjacent said inner walls.
Claim 2
Dependent Claim
150 words
An atmosphere analyzer operating by the variation of the combustion front, said analyzer comprising a burner having an inlet and a round nozzle communicating with said inlet, and having an open top, a thermosensor located in the middle of said nozzle and having an end extending beyond said top, a flameshaping part located within said nozzle adjacent said top and engaging said thermosensor and the inner walls of said nozzle adjacent said top, said flame-shaping part having at least three flame-shaping passages extending radially star-like between said thermosensor and said inner walls, and means injecting a fuel into said inlet wherein it is mixed with air and ignited, whereby a flame is formed which extends star-shaped around said thermosensor and beyond said top with the inner vertices of the star-shaped flame being located adjacent said thermosensor and the outer vertices of the star-shaped flame being located adjacent said inner walls.
Claim 3
Dependent Claim
67 words
Atmosphere analyzer working by variation of the combustion front, as described in claim 1, characterized by the fact that, under normal atmosphere conditions, the combustion front forms along the contours of the flame-shaping part, i.e., the flame burns near the thermosensor at the inner vertices of the star, and near the wall of the flue or burner nozzle in the outEr area, where it can be piloted.
Claim 4
Dependent Claim
90 words
Atmosphere analyzer working by variation of the combustion front, as described in claim 2, characterized by the fact that, when oxygen richness varies in the atmosphere from which the primary combustion air is drawn, i.e., when the percentage of oxygen diminishes, the combustion front also varies, such that the points of the star become rounder, and the hot zone of the flame moves away from the thermosensor until it reaches a point far enough away to deactivate the latter when a predetermined degree of rarification is attained in the atmosphere.
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |