FR25660E - Pompe hélicoïdale pour vides élevés - Google Patents

Pompe hélicoïdale pour vides élevés

Info

Publication number
FR25660E
FR25660E FR25660DA FR25660E FR 25660 E FR25660 E FR 25660E FR 25660D A FR25660D A FR 25660DA FR 25660 E FR25660 E FR 25660E
Authority
FR
France
Prior art keywords
high vacuum
helical pump
helical
pump
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
English (en)
Inventor
Fernand Holweck
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 filed Critical
Application granted granted Critical
Publication of FR25660E publication Critical patent/FR25660E/fr
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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/168—Pumps specially adapted to produce a vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR25660D 1921-11-15 1921-11-15 Pompe hélicoïdale pour vides élevés Expired FR25660E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR25660T 1921-11-15

Publications (1)

Publication Number Publication Date
FR25660E true FR25660E (fr) 1923-05-16

Family

ID=8664156

Family Applications (1)

Application Number Title Priority Date Filing Date
FR25660D Expired FR25660E (fr) 1921-11-15 1921-11-15 Pompe hélicoïdale pour vides élevés

Country Status (1)

Country Link
FR (1) FR25660E (fr)

Similar Documents

Publication Publication Date Title
FR536278A (fr) Pompe hélicoïdale pour vides élevés
FR25660E (fr) Pompe hélicoïdale pour vides élevés
FR531372A (fr) Pompe centripète
FR552945A (fr) Pompe pour serrures
US1474877A (en) Pump
FR507229A (fr) Aspirateur
GB179916A (en) An improved rotary pump
FR555900A (fr) Pompe
FR556331A (fr) Pompe à injection de vapeurs de mercure pour vides élevés
FR500669A (fr) Pompe
FR542152A (fr) Construction de pompe perfectionnée
CH82660A (de) Jauchepumpe
FR536077A (fr) Pompe aspirante
FR554417A (fr) Pompes
FR533452A (fr) Pompe
FR526832A (fr) Pompe
FR22657E (fr) Aspirateur
FR538490A (fr) Perfectionnements apportés aux pompes
CH82496A (de) Pumpe
FR535411A (fr) Porte-pompe pour cycles
CA212783A (fr) Pompe alternative
FI7363A (fi) Vätskepump
FI8750A (fi) Ventillös pump för vätskor
FR544777A (fr) Pompe à air pour bicyclette
FI7713A (fi) Centrifugalpump