FR573931A - Device that warns of the presence of flammable gas in the air and can signal fires - Google Patents
Device that warns of the presence of flammable gas in the air and can signal firesInfo
- Publication number
- FR573931A FR573931A FR573931DA FR573931A FR 573931 A FR573931 A FR 573931A FR 573931D A FR573931D A FR 573931DA FR 573931 A FR573931 A FR 573931A
- Authority
- FR
- France
- Prior art keywords
- warns
- air
- flammable gas
- signal fires
- fires
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
- G01N25/28—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly
- G01N25/38—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using the melting or combustion of a solid
- G01N25/385—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using the melting or combustion of a solid for investigating the composition of gas mixtures
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR573931T | 1923-09-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR573931A true FR573931A (en) | 1924-07-02 |
Family
ID=8952344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR573931D Expired FR573931A (en) | 1923-09-10 | 1923-09-10 | Device that warns of the presence of flammable gas in the air and can signal fires |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR573931A (en) |
-
1923
- 1923-09-10 FR FR573931D patent/FR573931A/en not_active Expired
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