BE470437A - - Google Patents

Info

Publication number
BE470437A
BE470437A BE470437DA BE470437A BE 470437 A BE470437 A BE 470437A BE 470437D A BE470437D A BE 470437DA BE 470437 A BE470437 A BE 470437A
Authority
BE
Belgium
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 of BE470437A publication Critical patent/BE470437A/xx

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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
    • A47L9/1436—Connecting plates, e.g. collars, end closures
    • A47L9/1445—Connecting plates, e.g. collars, end closures with closure means
    • A47L9/1454—Self-sealing closures, e.g. valves
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
    • H03B5/26—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator frequency-determining element being part of bridge circuit in closed ring around which signal is transmitted; frequency-determining element being connected via a bridge circuit to such a closed ring, e.g. Wien-Bridge oscillator, parallel-T oscillator
BE470437D 1946-01-18 BE470437A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US641992A US2596806A (en) 1946-01-18 1946-01-18 Vacuum cleaner dust bag

Publications (1)

Publication Number Publication Date
BE470437A true BE470437A (fr)

Family

ID=24574705

Family Applications (1)

Application Number Title Priority Date Filing Date
BE470437D BE470437A (fr) 1946-01-18

Country Status (7)

Country Link
US (1) US2596806A (fr)
BE (1) BE470437A (fr)
CH (1) CH258822A (fr)
DE (1) DE886803C (fr)
FR (1) FR939472A (fr)
GB (1) GB629674A (fr)
NL (1) NL70292C (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2720277A (en) * 1952-05-27 1955-10-11 Lewyt Corp Filter structures for vacuum cleaners
US3108736A (en) * 1952-12-20 1963-10-29 Electrolux Corp Container closures
BE528696A (fr) * 1953-05-11
GB766086A (en) * 1954-04-22 1957-01-16 Lewyt Corp Improvements in or relating to vacuum cleaners
US2766842A (en) * 1954-09-02 1956-10-16 Hoover Co Filter mounting means
US2818936A (en) * 1955-02-21 1958-01-07 Hoover Co Suction cleaner filter bags
US2833372A (en) * 1955-07-29 1958-05-06 Robert I Lappin Vacuum cleaner equipped with disposable bag
US3200571A (en) * 1961-08-30 1965-08-17 Shannah Gale Stone Disposable filter bag
DE1278245B (de) * 1962-08-01 1968-09-19 Rank Xerox Ltd Selbsttragender Filterbeutel fuer elektrophotographische Kopiermaschinen
US3252274A (en) * 1962-08-01 1966-05-24 Xerox Corp Xerographic powder filter
US3245605A (en) * 1963-04-26 1966-04-12 Carl E Meyerhoefer Resilient seal assembly
US3237846A (en) * 1964-03-06 1966-03-01 Electrolux Corp End closure for disposable dust bag
US3410060A (en) * 1964-09-30 1968-11-12 Xerox Corp Xerographic filter apparatus
US3421298A (en) * 1967-03-28 1969-01-14 Electrolux Corp End closure for a disposable vacuum cleaner dust bag
US3538686A (en) * 1968-10-21 1970-11-10 Louis Schwab Self-sealing and self-holding filter frame
US5039324A (en) * 1989-03-27 1991-08-13 Mastercraft Industries, Inc. Sealable collar vacuum cleaner bag
DE4007147A1 (de) * 1990-03-07 1991-09-12 Esta Apparatebau Absaugeinrichtung fuer schweisspistolen
DE9405637U1 (de) * 1994-04-05 1994-05-26 Voit Geb Filter-Einsatz-Beutel, insbesondere für Staubsauger
ITGE20030025U1 (it) * 2003-11-27 2005-05-28 Filtri Di Padroni Marco Genova Sacchetto per aspirapolvere realizzato in tessuto non tessuto
US7171719B1 (en) * 2004-07-27 2007-02-06 David Harrelson Disposal apparatus
DE202007004650U1 (de) * 2007-03-27 2007-06-06 Alt, Hans Filtervorrichtung

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US571708A (en) * 1896-11-17 Dust-guard for air-brake hose-couplings
US670794A (en) * 1900-07-25 1901-03-26 John B Lott Valve.
US946318A (en) * 1906-02-28 1910-01-11 Bates Valve Bag Co Valve-bag.
US931888A (en) * 1908-05-20 1909-08-24 James Reaney Jr Valved bag.
US1140625A (en) * 1913-09-23 1915-05-25 Ernest Spitzler Bait-receptacle.
US1241352A (en) * 1915-02-23 1917-09-25 Charles Doering Jr Water-dispensing device.
US1629661A (en) * 1926-11-23 1927-05-24 Joseph M Gerhard Candy-dispensing box
CH142719A (fr) * 1929-03-18 1930-10-15 Hoover Co Sac pour aspirateurs de poussière et son procédé de fabrication.
FR701447A (fr) * 1930-01-14 1931-03-16 Constr Apparecchi Elettrodomes Perfectionnements aux dispositifs pour recueillir la poussière dans les aspirateursélectriques
US2070674A (en) * 1935-11-05 1937-02-16 Utility Innovations Inc Dust bag
BE427037A (fr) * 1937-03-19
US2234032A (en) * 1940-02-26 1941-03-04 Beech Nut Packing Co Display stand
US2325820A (en) * 1940-05-16 1943-08-03 Hoover Co Suction cleaner dirt bag
US2270737A (en) * 1940-07-26 1942-01-20 Jesse D Langdon Siphon breaker and valve
US2378878A (en) * 1941-05-05 1945-06-19 Acme Steel Co Container and method of forming the same

Also Published As

Publication number Publication date
GB629674A (en) 1949-09-26
FR939472A (fr) 1948-11-16
US2596806A (en) 1952-05-13
DE886803C (de) 1953-08-17
CH258822A (fr) 1948-12-31
NL70292C (fr)

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