DE131898C - - Google Patents
Info
- Publication number
- DE131898C DE131898C DENDAT131898D DE131898DA DE131898C DE 131898 C DE131898 C DE 131898C DE NDAT131898 D DENDAT131898 D DE NDAT131898D DE 131898D A DE131898D A DE 131898DA DE 131898 C DE131898 C DE 131898C
- Authority
- DE
- Germany
- Prior art keywords
- cylinder
- piston
- air
- closed
- pin
- 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
- 239000007788 liquid Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 241000220324 Pyrus Species 0.000 claims description 2
- 235000021017 pears Nutrition 0.000 claims description 2
- 239000003566 sealing material Substances 0.000 claims 1
- 230000000994 depressogenic effect Effects 0.000 description 1
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)
- Reciprocating Pumps (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE131898C true DE131898C (OSRAM) |
Family
ID=400197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT131898D Active DE131898C (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE131898C (OSRAM) |
-
0
- DE DENDAT131898D patent/DE131898C/de active Active
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