DE264758C - - Google Patents
Info
- Publication number
- DE264758C DE264758C DENDAT264758D DE264758DA DE264758C DE 264758 C DE264758 C DE 264758C DE NDAT264758 D DENDAT264758 D DE NDAT264758D DE 264758D A DE264758D A DE 264758DA DE 264758 C DE264758 C DE 264758C
- Authority
- DE
- Germany
- Prior art keywords
- overpressure
- colored
- lamp
- liquid
- mine gases
- 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
- 239000007789 gas Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 12
- 238000009792 diffusion process Methods 0.000 claims description 6
- 230000011664 signaling Effects 0.000 claims description 2
- 239000011521 glass Substances 0.000 description 9
- 239000004927 clay Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 235000019687 Lamb Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/10—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Audible And Visible Signals (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE264758C true DE264758C (th) |
Family
ID=522043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT264758D Active DE264758C (th) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE264758C (th) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5400655A (en) * | 1991-07-04 | 1995-03-28 | Fuji Electric Co., Ltd. | Pressure measuring apparatus |
-
0
- DE DENDAT264758D patent/DE264758C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5400655A (en) * | 1991-07-04 | 1995-03-28 | Fuji Electric Co., Ltd. | Pressure measuring apparatus |
| US5551299A (en) * | 1991-07-04 | 1996-09-03 | Fuji Electric Co., Ltd. | Apparatus for measuring pressure in a fluid using a seal diaphragm and pressure transmitting medium |
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