CH579219A5 - - Google Patents

Info

Publication number
CH579219A5
CH579219A5 CH326074A CH326074A CH579219A5 CH 579219 A5 CH579219 A5 CH 579219A5 CH 326074 A CH326074 A CH 326074A CH 326074 A CH326074 A CH 326074A CH 579219 A5 CH579219 A5 CH 579219A5
Authority
CH
Switzerland
Application number
CH326074A
Original Assignee
Cit Alcatel
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cit Alcatel filed Critical Cit Alcatel
Publication of CH579219A5 publication Critical patent/CH579219A5/xx

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)
  • Applications Or Details Of Rotary Compressors (AREA)
CH326074A 1973-03-21 1974-03-08 CH579219A5 (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7310183A FR2222886A5 (xx) 1973-03-21 1973-03-21

Publications (1)

Publication Number Publication Date
CH579219A5 true CH579219A5 (xx) 1976-08-31

Family

ID=9116654

Family Applications (1)

Application Number Title Priority Date Filing Date
CH326074A CH579219A5 (xx) 1973-03-21 1974-03-08

Country Status (10)

Country Link
US (1) US3912415A (xx)
JP (1) JPS49128306A (xx)
BE (1) BE812288A (xx)
CH (1) CH579219A5 (xx)
DE (1) DE2411247C2 (xx)
FR (1) FR2222886A5 (xx)
GB (1) GB1459933A (xx)
IT (1) IT1014568B (xx)
NL (1) NL7403784A (xx)
SU (1) SU667162A3 (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8105614A (nl) * 1981-12-14 1983-07-01 Ultra Centrifuge Nederland Nv Hoog-vacuum moleculair pomp.
US4708586A (en) * 1985-08-14 1987-11-24 Rikagaku Kenkyusho Thread groove type vacuum pump
JPS6238899A (ja) * 1985-08-14 1987-02-19 Osaka Shinku Kiki Seisakusho:Kk ねじ溝式真空ポンプ
JPS6351195U (xx) * 1986-09-20 1988-04-06
JPH06205706A (ja) * 1992-12-09 1994-07-26 Ciba Geigy Ag コンタクトレンズケース
GB2585936A (en) * 2019-07-25 2021-01-27 Edwards Ltd Drag pump
EP4194700A1 (de) * 2023-04-18 2023-06-14 Pfeiffer Vacuum Technology AG Vakuumpumpe mit einer holweck-pumpstufe mit veränderlicher holweck-geometrie

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR536278A (fr) * 1921-06-01 1922-04-29 Pompe hélicoïdale pour vides élevés
US1492846A (en) * 1922-05-11 1924-05-06 Mullard Radio Valve Co Ltd Vacuum pump
FR1293546A (fr) * 1961-02-09 1962-05-18 Alsacienne Constr Meca Perfectionnements aux pompes moléculaires rotatives
US3697190A (en) * 1970-11-03 1972-10-10 Walter D Haentjens Truncated conical drag pump
DE2118738C3 (de) * 1971-04-17 1974-11-14 Dornier Dmbh, 7990 Friedrichshafen Molekularpumpe, bestehend aus einem mit Innengewinde versehenen zylindrischen Stator

Also Published As

Publication number Publication date
NL7403784A (xx) 1974-09-24
BE812288A (fr) 1974-09-16
DE2411247A1 (de) 1974-09-26
US3912415A (en) 1975-10-14
GB1459933A (en) 1976-12-31
SU667162A3 (ru) 1979-06-05
JPS49128306A (xx) 1974-12-09
FR2222886A5 (xx) 1974-10-18
IT1014568B (it) 1977-04-30
DE2411247C2 (de) 1983-03-24

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Legal Events

Date Code Title Description
PL Patent ceased