DE228933C - - Google Patents
Info
- Publication number
- DE228933C DE228933C DENDAT228933D DE228933DA DE228933C DE 228933 C DE228933 C DE 228933C DE NDAT228933 D DENDAT228933 D DE NDAT228933D DE 228933D A DE228933D A DE 228933DA DE 228933 C DE228933 C DE 228933C
- Authority
- DE
- Germany
- Prior art keywords
- piston
- pressure
- annular space
- space
- pressure vessel
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
- F04B37/16—Means for nullifying unswept space
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE228933C true DE228933C (cs) |
Family
ID=489288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT228933D Active DE228933C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE228933C (cs) |
-
0
- DE DENDAT228933D patent/DE228933C/de active Active
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