FR1140189A - Multistage pumping device - Google Patents

Multistage pumping device

Info

Publication number
FR1140189A
FR1140189A FR1140189DA FR1140189A FR 1140189 A FR1140189 A FR 1140189A FR 1140189D A FR1140189D A FR 1140189DA FR 1140189 A FR1140189 A FR 1140189A
Authority
FR
France
Prior art keywords
pumping device
multistage pumping
multistage
pumping
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
Other languages
French (fr)
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.)
Balzers und Leybold Deutschland Holding AG
Original Assignee
E Leybolds Nachfolger AG
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 E Leybolds Nachfolger AG filed Critical E Leybolds Nachfolger AG
Application granted granted Critical
Publication of FR1140189A publication Critical patent/FR1140189A/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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/06—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/02—Liquid sealing for high-vacuum pumps or for compressors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR1140189D 1955-01-15 1956-01-13 Multistage pumping device Expired FR1140189A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1140189X 1955-01-15

Publications (1)

Publication Number Publication Date
FR1140189A true FR1140189A (en) 1957-07-16

Family

ID=7726449

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1140189D Expired FR1140189A (en) 1955-01-15 1956-01-13 Multistage pumping device

Country Status (1)

Country Link
FR (1) FR1140189A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1226239B (en) * 1960-11-03 1966-10-06 Leybolds Nachfolger E Operating procedure for a vacuum pump unit
DE3514317A1 (en) * 1984-04-20 1985-10-31 Tokico Ltd., Kawasaki, Kanagawa VACUUM PUMP
FR2652390A1 (en) * 1989-09-27 1991-03-29 Cit Alcatel VACUUM PUMP GROUP.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1226239B (en) * 1960-11-03 1966-10-06 Leybolds Nachfolger E Operating procedure for a vacuum pump unit
DE3514317A1 (en) * 1984-04-20 1985-10-31 Tokico Ltd., Kawasaki, Kanagawa VACUUM PUMP
FR2652390A1 (en) * 1989-09-27 1991-03-29 Cit Alcatel VACUUM PUMP GROUP.
WO1991005166A1 (en) * 1989-09-27 1991-04-18 Alcatel Cit Vacuum pumping group
US5165864A (en) * 1989-09-27 1992-11-24 Alcatel Cit Vacuum pump unit

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