FR933771A - Enhancements to high vacuum pumps - Google Patents

Enhancements to high vacuum pumps

Info

Publication number
FR933771A
FR933771A FR933771DA FR933771A FR 933771 A FR933771 A FR 933771A FR 933771D A FR933771D A FR 933771DA FR 933771 A FR933771 A FR 933771A
Authority
FR
France
Prior art keywords
enhancements
high vacuum
vacuum pumps
pumps
vacuum
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.)
Heraeus Noblelight Analytics Ltd
Original Assignee
Cathodeon Ltd
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 Cathodeon Ltd filed Critical Cathodeon Ltd
Application granted granted Critical
Publication of FR933771A publication Critical patent/FR933771A/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
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F9/00—Diffusion pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR933771D 1945-08-08 1946-09-20 Enhancements to high vacuum pumps Expired FR933771A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB933771X 1945-08-08

Publications (1)

Publication Number Publication Date
FR933771A true FR933771A (en) 1948-04-30

Family

ID=10747630

Family Applications (1)

Application Number Title Priority Date Filing Date
FR933771D Expired FR933771A (en) 1945-08-08 1946-09-20 Enhancements to high vacuum pumps

Country Status (1)

Country Link
FR (1) FR933771A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966418C (en) * 1952-12-21 1957-08-01 Heraeus Gmbh W C Cold trap to prevent back diffusion of the propellant from diffusion and steam jet pumps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966418C (en) * 1952-12-21 1957-08-01 Heraeus Gmbh W C Cold trap to prevent back diffusion of the propellant from diffusion and steam jet pumps

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