FR1449539A - Pompe à vide - Google Patents
Pompe à videInfo
- Publication number
- FR1449539A FR1449539A FR34781A FR34781A FR1449539A FR 1449539 A FR1449539 A FR 1449539A FR 34781 A FR34781 A FR 34781A FR 34781 A FR34781 A FR 34781A FR 1449539 A FR1449539 A FR 1449539A
- Authority
- FR
- France
- Prior art keywords
- vacuum pump
- vacuum
- pump
- 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
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
- G01N15/12—Investigating individual particles by measuring electrical or magnetic effects by observing changes in resistance or impedance across apertures when traversed by individual particles, e.g. by using the Coulter principle
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR34781A FR1449539A (fr) | 1964-11-16 | 1965-10-13 | Pompe à vide |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US411532A US3289916A (en) | 1964-11-16 | 1964-11-16 | Variable pressure pump for manometric metering device |
FR34781A FR1449539A (fr) | 1964-11-16 | 1965-10-13 | Pompe à vide |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1449539A true FR1449539A (fr) | 1966-08-12 |
Family
ID=26166740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR34781A Expired FR1449539A (fr) | 1964-11-16 | 1965-10-13 | Pompe à vide |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1449539A (fr) |
-
1965
- 1965-10-13 FR FR34781A patent/FR1449539A/fr not_active Expired
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