DE259404C - - Google Patents
Info
- Publication number
- DE259404C DE259404C DENDAT259404D DE259404DA DE259404C DE 259404 C DE259404 C DE 259404C DE NDAT259404 D DENDAT259404 D DE NDAT259404D DE 259404D A DE259404D A DE 259404DA DE 259404 C DE259404 C DE 259404C
- Authority
- DE
- Germany
- Prior art keywords
- room
- pressure difference
- air
- alarm
- outside air
- 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.)
- Active
Links
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000010790 dilution Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000013475 authorization Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910000743 fusible alloy Inorganic materials 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
- G08B19/005—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow combined burglary and fire alarm systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE259404C true DE259404C (enrdf_load_stackoverflow) |
Family
ID=517140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT259404D Active DE259404C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE259404C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT259404D patent/DE259404C/de active Active
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