GB1473713A - Drum type molecular pump and method of manufacturing it - Google Patents

Drum type molecular pump and method of manufacturing it

Info

Publication number
GB1473713A
GB1473713A GB3829074A GB3829074A GB1473713A GB 1473713 A GB1473713 A GB 1473713A GB 3829074 A GB3829074 A GB 3829074A GB 3829074 A GB3829074 A GB 3829074A GB 1473713 A GB1473713 A GB 1473713A
Authority
GB
United Kingdom
Prior art keywords
land
grooves
groove
molecular pump
sept
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.)
Expired
Application number
GB3829074A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel CIT SA
Nokia Inc
Original Assignee
Compagnie Industrielle de Telecommunication CIT Alcatel SA
Nokia Inc
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 Compagnie Industrielle de Telecommunication CIT Alcatel SA, Nokia Inc filed Critical Compagnie Industrielle de Telecommunication CIT Alcatel SA
Publication of GB1473713A publication Critical patent/GB1473713A/en
Expired legal-status Critical Current

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)
  • Structures Of Non-Positive Displacement Pumps (AREA)
GB3829074A 1973-09-14 1974-09-02 Drum type molecular pump and method of manufacturing it Expired GB1473713A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7333097A FR2244370A5 (enExample) 1973-09-14 1973-09-14

Publications (1)

Publication Number Publication Date
GB1473713A true GB1473713A (en) 1977-05-18

Family

ID=9125050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3829074A Expired GB1473713A (en) 1973-09-14 1974-09-02 Drum type molecular pump and method of manufacturing it

Country Status (10)

Country Link
US (1) US3924962A (enExample)
JP (1) JPS5055911A (enExample)
BE (1) BE819441A (enExample)
CH (1) CH592818A5 (enExample)
DE (1) DE2443727A1 (enExample)
FR (1) FR2244370A5 (enExample)
GB (1) GB1473713A (enExample)
IT (1) IT1020719B (enExample)
NL (1) NL7412212A (enExample)
SU (1) SU580850A3 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2585936A (en) * 2019-07-25 2021-01-27 Edwards Ltd Drag pump

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.
JPH0784871B2 (ja) * 1986-06-12 1995-09-13 株式会社日立製作所 真空排気装置
JPH02502743A (ja) * 1987-12-25 1990-08-30 ショロホフ　ヴァレリイ　ボリソヴィチ 分子真空ポンプ
JPH02502840A (ja) * 1988-01-05 1990-09-06 ショロホフ　ヴァレリイ　ボリソヴィチ 分子真空ポンプ
DE3891263T1 (de) * 1988-02-26 1990-03-15 Nikolaj Michailovic Novikov Turbomolekular-vakuumpumpe
DE3891280T1 (de) * 1988-03-30 1990-04-05 Vladimir Pavlovic Sergeev Turbomolekular-vakuumpumpe
DE3831258C1 (enExample) * 1988-09-14 1989-10-12 Alcatel Hochvakuumtechnik Gmbh, 6980 Wertheim, De

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1053637A (en) * 1912-03-02 1913-02-18 John Arthur Hamilton O'reilly Fluid-propelled machine.
US1448079A (en) * 1920-07-08 1923-03-13 Noeggerath Jacob Emil Viscosity pump
US1902439A (en) * 1930-12-30 1933-03-21 Edward T Skeffington Flying worm steam motor
US1869106A (en) * 1931-06-12 1932-07-26 Charles J Marchant Rotary engine
NL7111948A (enExample) * 1971-08-31 1973-03-02

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2585936A (en) * 2019-07-25 2021-01-27 Edwards Ltd Drag pump
US11971041B2 (en) 2019-07-25 2024-04-30 Edwards Limited Drag pump

Also Published As

Publication number Publication date
DE2443727A1 (de) 1975-04-03
US3924962A (en) 1975-12-09
JPS5055911A (enExample) 1975-05-16
BE819441A (fr) 1975-03-03
FR2244370A5 (enExample) 1975-04-11
IT1020719B (it) 1977-12-30
SU580850A3 (ru) 1977-11-15
NL7412212A (nl) 1975-03-18
CH592818A5 (enExample) 1977-11-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee