FR974729A - - Google Patents

Info

Publication number
FR974729A
FR974729A FR974729DA FR974729A FR 974729 A FR974729 A FR 974729A FR 974729D A FR974729D A FR 974729DA FR 974729 A FR974729 A FR 974729A
Authority
FR
France
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
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.)
Publication date
Application granted granted Critical
Publication of FR974729A publication Critical patent/FR974729A/fr
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • A47L5/362—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the horizontal type, e.g. canister or sledge type
    • 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
    • F04D17/164—Multi-stage fans, e.g. for vacuum cleaners

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR974729D 1947-11-07 Expired FR974729A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE279608X 1947-11-07

Publications (1)

Publication Number Publication Date
FR974729A true FR974729A (fr) 1951-02-26

Family

ID=20306974

Family Applications (1)

Application Number Title Priority Date Filing Date
FR974729D Expired FR974729A (fr) 1947-11-07

Country Status (4)

Country Link
US (1) US2723724A (fr)
CH (1) CH279608A (fr)
FR (1) FR974729A (fr)
NL (1) NL143174B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6595753B1 (en) * 1999-05-21 2003-07-22 A. Vortex Holding Company Vortex attractor
DE102012211250A1 (de) * 2012-06-29 2014-01-02 BSH Bosch und Siemens Hausgeräte GmbH Staubsaugergebläse und Staubsauger mit einem Staubsaugergebläse

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US993985A (en) * 1909-09-07 1911-05-30 Electric Renovator Mfg Co Pneumatic pumping-machine.
US2149135A (en) * 1936-01-03 1939-02-28 Electrolux Corp Vacuum cleaner
US2285338A (en) * 1939-10-28 1942-06-02 Ingersoll Rand Co Centrifugal blower
US2322948A (en) * 1941-01-23 1943-06-29 Electrolux Corp Vacuum cleaner
US2450671A (en) * 1946-12-19 1948-10-05 Ingersoll Rand Co Casing for pumps

Also Published As

Publication number Publication date
CH279608A (de) 1951-12-15
US2723724A (en) 1955-11-15
NL143174B (nl) 1957-04-15

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