NL7202925A - - Google Patents
Info
- Publication number
- NL7202925A NL7202925A NL7202925A NL7202925A NL7202925A NL 7202925 A NL7202925 A NL 7202925A NL 7202925 A NL7202925 A NL 7202925A NL 7202925 A NL7202925 A NL 7202925A NL 7202925 A NL7202925 A NL 7202925A
- Authority
- NL
- Netherlands
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
- F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
- F04D19/044—Holweck-type pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Non-Positive Displacement Air Blowers (AREA)
- Springs (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2118738A DE2118738C3 (de) | 1971-04-17 | 1971-04-17 | Molekularpumpe, bestehend aus einem mit Innengewinde versehenen zylindrischen Stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7202925A true NL7202925A (en:Method) | 1972-10-19 |
Family
ID=5805019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7202925A NL7202925A (en:Method) | 1971-04-17 | 1972-03-06 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3802794A (en:Method) |
| DE (1) | DE2118738C3 (en:Method) |
| FR (1) | FR2134997A5 (en:Method) |
| GB (1) | GB1331012A (en:Method) |
| NL (1) | NL7202925A (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2222886A5 (en:Method) * | 1973-03-21 | 1974-10-18 | Cit Alcatel | |
| JPS6341695A (ja) * | 1986-08-07 | 1988-02-22 | Seiko Seiki Co Ltd | タ−ボ分子ポンプ |
| DE3728154C2 (de) * | 1987-08-24 | 1996-04-18 | Balzers Pfeiffer Gmbh | Mehrstufige Molekularpumpe |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1065208A (en) * | 1911-04-14 | 1913-06-17 | Charles G Strickler | Water turbine-wheel. |
| US1492846A (en) * | 1922-05-11 | 1924-05-06 | Mullard Radio Valve Co Ltd | Vacuum pump |
| US2730297A (en) * | 1950-04-12 | 1956-01-10 | Hartford Nat Bank & Trust Co | High-vacuum molecular pump |
| DE1010235B (de) * | 1955-04-22 | 1957-06-13 | Arthur Pfeiffer Fa | Molekularpumpe |
-
1971
- 1971-04-17 DE DE2118738A patent/DE2118738C3/de not_active Expired
-
1972
- 1972-02-23 GB GB833672A patent/GB1331012A/en not_active Expired
- 1972-03-06 NL NL7202925A patent/NL7202925A/xx unknown
- 1972-03-27 US US00238231A patent/US3802794A/en not_active Expired - Lifetime
- 1972-04-13 FR FR7213689A patent/FR2134997A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2118738A1 (de) | 1972-11-16 |
| FR2134997A5 (en:Method) | 1972-12-08 |
| DE2118738B2 (en:Method) | 1974-04-11 |
| GB1331012A (en) | 1973-09-19 |
| DE2118738C3 (de) | 1974-11-14 |
| US3802794A (en) | 1974-04-09 |