DE157471C - - Google Patents
Info
- Publication number
- DE157471C DE157471C DENDAT157471D DE157471DA DE157471C DE 157471 C DE157471 C DE 157471C DE NDAT157471 D DENDAT157471 D DE NDAT157471D DE 157471D A DE157471D A DE 157471DA DE 157471 C DE157471 C DE 157471C
- Authority
- DE
- Germany
- Prior art keywords
- piston
- liquid
- air
- valve
- boot
- 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 16
- 239000012530 fluid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims 1
- 229910052753 mercury Inorganic materials 0.000 claims 1
- 230000000284 resting Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000007906 compression Methods 0.000 description 2
- 230000002730 additional Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007787 solid Substances 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
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE157471C true DE157471C (sv) |
Family
ID=423739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT157471D Active DE157471C (sv) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE157471C (sv) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0587547A2 (en) * | 1992-09-10 | 1994-03-16 | ELECTROLUX RESEARCH & INNOVATION AB | Vacuum pump |
-
0
- DE DENDAT157471D patent/DE157471C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0587547A2 (en) * | 1992-09-10 | 1994-03-16 | ELECTROLUX RESEARCH & INNOVATION AB | Vacuum pump |
| EP0587547A3 (en) * | 1992-09-10 | 1994-10-12 | Electrolux Res & Innovation | Vacuum pump. |
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