US2406915A - Suction cleaner - Google Patents

Suction cleaner Download PDF

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Publication number
US2406915A
US2406915A US484515A US48451543A US2406915A US 2406915 A US2406915 A US 2406915A US 484515 A US484515 A US 484515A US 48451543 A US48451543 A US 48451543A US 2406915 A US2406915 A US 2406915A
Authority
US
United States
Prior art keywords
air
nozzle
filter
inlet
suction
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 - Lifetime
Application number
US484515A
Other languages
English (en)
Inventor
Donald G Smellie
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.)
Hoover Co
Original Assignee
Hoover Co
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 Hoover Co filed Critical Hoover Co
Priority to US484511A priority Critical patent/US2409008A/en
Priority to US484515A priority patent/US2406915A/en
Priority to GB3511/44A priority patent/GB571584A/en
Priority to GB3509/44A priority patent/GB572065A/en
Priority to CH243324D priority patent/CH243324A/fr
Priority to CH241885D priority patent/CH241885A/fr
Application granted granted Critical
Publication of US2406915A publication Critical patent/US2406915A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47L9/0072—Mechanical means for controlling the suction or for effecting pulsating action
    • 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
    • A47L5/365—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type
    • 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
    • A47L9/20—Means for cleaning filters

Definitions

  • the :present invention relates'to suction cleanerscin general and more particularlyto new and novelarrangement of parts in a suction cleaner. More-specifically, the invention comprises an improved type of suction cleaner in which the dirtladen air'stream is drawnjby the suction-creating means of the cleaner through aninitial dirt separator andis exhausted by'the suction-creatingmeans into a' final dirt-separator, means being provided to clean thesfinaldirt-separator comprising a continuously operated cleaningnozzle which is supplied with a maximumfiow of-cleanihg' air each time the seal of the main cleaning nozzle is broken.
  • driven filter-cleaning nozzle will be claimed as "will'th'e broad aspects of the pressure-controlled valve structure; the present application being. directed to the improved air-flow controlling features of the valve and the it mechanism which cooperates therewith.
  • suction cleaner of the multiple-' dirt separator type which incorporates meansto prevent inrushes of unde'sirable non-working cleaning air
  • Figure-5 is a section-upon the line5-5 of Figure 4.
  • Figured is an enlarged partial vertical section through the suction-creating-fan unit and speedreducing' mechanism, 6--6of Figure'4:
  • the present invention comprises an improve ment relatingeto' the basic in-vention disclosed in the-patent toBible 2,247,472 in which a suction cleaner is" disclosed-"Which comprises an initial dirt separator; suction-creating meansto draw air from "a cleaning nozzleinto thein-i-tial separator andv to remove it-thereirom, and a final dirt-sepa. rator whicnreceivesair from the suction-creating means for the purpose of'rem'oving any -escaped foreign" material from the air stream which has escaped fromthe initia-l separator. Mr.
  • the invention is seen to comprise a cylindrical main casing l which seats, at its centrally apertured and flanged bottom plate 2, upon a supporting base 3 which seats a removable dirt pan or container 4, the upper peripheral edges of which are in sealed contact with the bottom plate 2.
  • the upper end of the cylindrical casing i is closed by a motor hood 6 which includes an inwardly flanged motorsupporting wall I. Y
  • a smaller cylindrical casing 9 Positioned concentrically within the main casing l is a smaller cylindrical casing 9 which is carried by the inner flanged peripheral edge of the bottom plate 2 of the casing I.
  • a transverse closure wall II divides the cylindrical casing 9 into a lower whirl chamber l2 and upper fan chamber l3, the latter being itself divided into a lower stage and an upper stage by a centrally positioned deflector l4.
  • Deflector M is formed with a multiplicity of fixed guide vanes which function to direct the air to the central inlet formed therein and which is indicated a [6.
  • the top of the fan chamber 13 is closed by cover plate ll of the cylindrical casing 9 while the bottom of the fan chamber is provided with a downwardly extending elongated inlet l8 which reaches downwardly beyond the mid-portion of the whirl chamber i2.
  • Vertically spaced spiders [9 within inlet i8 support a downwardly extending rod carrying a transverse pan-closing plate end and a strainer 22 immediately below the lower spider i9.
  • is spaced inwardly from the wall of casing 9 and provides a peripheral opening through which the foreign material can drop from the whirl chamber into the dirt pan 4 while the strainer 22 prevents the passage upwardly into the suction-creating fan chamber l3 of large size foreign objects.
  • the inlet of the cleaner comprises a' port 23 which is adapted to receive and seat the cleaner end of a dusting tool hose 5 which at its outer end carrie a suitable cleaning nozzle Ill.
  • Inlet 23 passes inwardly through the outer cylindrical casing I and connects directly to an inlet chamber 24 which opens tangentially intothe whirl chamber iii.
  • the construction is such that air entering through the inlet 23 and chamber 24 enters the whirl chamber tangentially resulting in a circular rotary movement of the air which tends to throw the foreign material outwardly and permits it to drop downwardly and into the dirt pan 4.
  • a two-stage fan comprising a lower rotary fan 26 and an upper fan 21, both carried by the downwardly depending shaft 28 of a motor 29 which is carried by the wall 1 and is positioned 2! at its lower partially within the motor hood 6 and partially within the upper end of casing I.
  • the rotation of the motor shaft 28 causes the tandem fan 26 and 21 to draw cleaning air in through the inlet port 23 and to remove the cleaned air upwardly through the inlet l8 into the fan chamber from which it is exhausted through suitable ports 35 into a, surrounding chamber which is indicated at 3! and which will be called the final filter chamber for a reason which will become apparent.
  • a cylindrical filter element 32 formed of suitable air-permeable dirt-impermeable material such as filter cloth.
  • Filter 32 is supported at it lower end by a flanged collar 33 fixedly carried by the casing 9.
  • a shouldered portion of a centrally apertured and flanged plate 34 which seats in sealing relationship upon the lower end of the casing of motor 29 and which is itself fixed in spaced relationship to the enclosing main casing l by means of spiders 3% which may be integrally formed.
  • Collar 33 and upper plate 34 form end enclosures i or the filter chamber 3
  • Discharge chamber 31 is closed at its upper end by th plate 1 and at its lower end by the bottom plate 2 of casing l and the only escape therefrom is afforded by the apertures 38 formed in the casing of motor 29 upon the opposite sides of the supporting wall I in the hood 8. Air entering the lower apertures 38 passes upwardly through the motor casing and escapes from the upper apertures and effects a cooling of the motor in doing so which is desirable.
  • the motor hood 6 above the plate I is provided with an exhaust port 39 adapted to receive and seat a dusting tool unit when it is desired to use the cleaner as a blowing unit and serves at all times as the cleaner exhaust port.
  • the driving motor 29 is provided with incoming power leads M which are connected to a suitable manually operable switch $2 to enable the operator to control the operation of the motor and so of the entire cleaner.
  • the machine which has hereinbefore been described comprises a completely operative cleaner, but one which has the inherent defect that no means have been provided to clean the filter 32.
  • an elongated nozzle 46 the length of which is equal to the height of the filter element 32 and which is adapted to mak sliding contact therewith.
  • Nozzle 46 has a filter-contacting opening or month which contacts only a limited area of the filter element 32 in any one position and accordingly means are provided to move the nozzle relative to the filter. This is accomplished by supporting nozzle 46 by a rotatable conduit seat 61 which encloses the vertical sleeve ie housing the motor shaft 28.
  • Conduit 41 is formed at its inner end with a downwardly facing circular seat which is rotatably mounted upon a supporting bearing 5
  • the latter conduit is mounted on the top plate ll of casing 9 and extends across the top and down the side thereof to connect to the inlet chamber 24 of th whirl chamber l2.
  • gear'59 carriedi'by a transverse horizontal jack shaft'fi'l' bearings 63 which is itself rotatably mounted in carried by brackets 62' supportedfrom the top wall of the housing-51;
  • Shaft't i itself carries a worm 64 at a poin-t'spaeed from its gear 59 and this worm in turn meshes with a gear 66 carried by a second and vertical jack shaft? 67.
  • Shaft Gl' is rotatably mounted "in bearings 68carrie'd in theupperandlower walls'of housing 5? andiscontinuously-rotated.
  • a gear 69 is fixedly connected to shaft El nearits lower end and transmits the continuous'dri-ving force'from sh'aft fil to .
  • a-large gear H whichcarries a bearing 12 rotatably seating upon the sleeve 49;
  • Gear H is:fixedly"connectedto the conduit-seat 41 of nozzle 4 6 by'means of suitable rivets-13;
  • A'coil spring misurrounds the sleeve 49 and exerts a downward force upon the top of the bearing" 12 and .thereby' forces the conduit seat ll against its supporting bearing 5i, a suitableshoulderit being provided-J upon the sleeve 39' to seat the spring;
  • means are providedi to. prevent therii'lrush of" air into the cleaner which. occurs when the seal of "the main nozzle Iii .with thesurface undergoing" cleaning is broken;
  • In thisinvention means are :provided which not only prevent thewinrush of no-n-clea'ningair which performs: noxuseful function: but'rwhich also turn the effective? action "of the icleaner suction-creating means to the useful:workiofdrawingan in-- creased volume 'ofcleaningainthrough thefiltercleaning nozzle 46;" v
  • This s construction will now be described:
  • Valve 88 is movshould ,1 rotate andl move over the i surface. of theafinali filtert 32 Fiat. aespeed. approaching. the:-
  • toggle 94 whichis pivotally mounted at its center supportedfrom the underside of the inlet chamber 24.
  • Toggle 94 1s suitably connected, as by a pin and slot connection, to a bracket 9'! upon the top p1ate83'of bellows 8i and at its upper end is formed'with a'slot 93 through which extends the lower right-angled end of the valve-carrying shaft 89.
  • the operation of the invention is as follows: The machine having been placed in operation by virtue of the operator closing the manually operable switch 42 the rotation of the cleaner motor Zil'effects the rotation of the shaft 25.
  • the suction-creating fans 26 and 2? carried by the shaft 28 cause a reduced pressure withinthe whirl chamber iZand air is drawn into the main cleaning nozzle it, through the dusting tool hose 5, through the inlet 25;, valve chamber 24 and With the nozzle passing over a surface covering to be cleaned foreign material removed by the air stream is brought into the whirl chamber where practically all ofthe foreign material i separated from the air and drops into the dirt pan 4 positioned below the transverse plate iii.
  • the cleaned air enters the fan unit i3 via the centrallylocated into the final filter and 2.
  • valve 88 With the valve 88 in the port-closing position, however, substantially the entire air-moving power of the suction-creating fan unit is effective to draw air through the conduit 52 leading to the filter-cleaning nozzle 45 and so long as this condition continues a greatly increased volume of air and a greatly increased suction is present within the nozzle and the cleaning ef- .feotiveness of the nozzle 46 is greatly increased.
  • a suction cleaner an initial separator having an inlet port, a suction-creating fan unit to draw air through said initial dirt separator, a motor to drive said fan unit, a final dirt separator to receive air exhausted from said. fan unit, a dirt-removing element in said final dirt separator, air-conducting means'connecting said element to said initial separator to draw air through said element at all times during normal surface cleaning operation, a valve to close said inlet port, and pressure-operated means to close said port upon a predetermined increase in the pressure at said port.
  • a manually movable nozzle adapted to contact a surface undergoing cleaning, an initial separator having an inlet connected to said nozzle, a suction-creating fan unit to draw air through said initial dirt separator, a motor to drive said fan unit, a final dirt separator to receive air exhausted from said fan unit, a dirt-removing element in said final dirt separator, means to provide a continuous flow of air from said element to said initial separator during cleaner surface-cleaning operation and with air flowing from said nozzle to said initial separator, and means to increase the flow of air from said element and to decrease the fiow of air from said nozzle to said initial separator.
  • an initial separator having an inlet, a suction-creating fan unit to draw air through said initial dirt separator, a motor to drive said fan unit, a final dirt separator to receive air exhausted from said fan unit, a dirt-removing element in said final dirt separator, an air conduit connecting said element directly to said initial separator to convey air thereto at all times during normal surface cleaner operation, a valve to close partially said inlet to said initial separator to reduce materially the fiow of air therethrough and thereby increase the flow of air through said air conduit, and pressure-operated means connected to said inlet to close said valve upon a predetermined increase in the pressure in said inlet.
  • an initial separator having an inlet, a suction-creating fan unit to draw air through said initial dirt separator, a motor to drive said fan unit, a final dirt separator including a filter to receive air exhausted from said fan unit, a movable cleaning nozzle for said final filter, air-conducting means connecting said nozzle to said initial separator to draw air through said nozzle at all times during the normal surface cleaning operation, power-transmitting mean connecting said nozzle to said motor to actuate the latter at all times during cleaner operation, a valve to reduce the flow of air through said inlet and to increase the flow of air through said movable cleaning nozzle, and pressure-operated means reduce the flow of air through said inlet upon a predetermined increase in the flow of air through said inlet.
  • a main cleaning nozzle through which cleaning air enters at a rate variable with the contact of the nozzle with a surface being cleaned, an initial dirt separator connected to said nozzle, a final dirt separator, "a second cleaning nozzle for said final separator, air-conducting means to conduct air from said second nozzle continuously during normal surface cleaning operation, suction-creating means to move air through said nozzles, air-conducting means and said separators, valve means to control the flow of air through said nozzles, pressure-operated means to determine the flow of air through said main nozzle, and means connecting said pressure-operated means to said valve means to move the latter to reduce the flow of air through the main nozzle and to increase the flow of air through the second nozzle upon the flow of air through said main nozzle exceeding a predetermined rate.
  • a surface-cleaning nozzle of the type through which the flow of cleaning air varies with the contact thereof with the surface being cleaned an initial dirt separator connected to said nozzle, suction-creating means connected to said initial separator to draw air therethrough, a final dirt separator connected to said suction-creating means to receive air exto move said valve to hausted therefrom, a separator-cleaning nozzle for said final dirt separator, air-conducting means at all times connecting said separatorcleaning nozzle to said initial dirt separator, valve means controlling the flow of air from said nozzles into said initial separator and arranged to vary the air flow through said surface-cleaning nozzle from a maximum to a minimum at which air actually flows'and at the same time to vary the air flow through said separator-cleaning nozzle to a maximum, and pressure-responsive means exposed to a point of air fiow in said cleaner to actuate said valve means to reduce the flow of air through said surface-cleaning nozzle to said minimum upon the flow of air there
  • a suction cleaner an inlet adapted to receive a dusting tool unit, an initial separator connected to said inlet, a suction-creating unit to draw air through said inlet and said initial dirt separator, a motor to drive said suctioncreating unit, a final dirt separator to receive air exhausted from said suction-creating means, a dirt-removing element in said final dirt separator, means to provide a continuous flow of air from said element to said initial separator during the cleaning operation of the cleaner and while air enters said inlet from a dusting tool unit, and means to vary inversely the flow of air through said inlet from a dusting toolunit and through said means to provide a continuous flow of air from said dirt-removing element to said initial separator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
US484515A 1943-04-26 1943-04-26 Suction cleaner Expired - Lifetime US2406915A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US484511A US2409008A (en) 1943-04-26 1943-04-26 Suction cleaner
US484515A US2406915A (en) 1943-04-26 1943-04-26 Suction cleaner
GB3511/44A GB571584A (en) 1943-04-26 1944-02-25 Improvements in or relating to suction cleaners
GB3509/44A GB572065A (en) 1943-04-26 1944-02-25 Improvements in or relating to suction cleaners
CH243324D CH243324A (fr) 1943-04-26 1944-04-25 Aspirateur.
CH241885D CH241885A (fr) 1943-04-26 1944-04-25 Aspirateur.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US484515A US2406915A (en) 1943-04-26 1943-04-26 Suction cleaner

Publications (1)

Publication Number Publication Date
US2406915A true US2406915A (en) 1946-09-03

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ID=23924466

Family Applications (1)

Application Number Title Priority Date Filing Date
US484515A Expired - Lifetime US2406915A (en) 1943-04-26 1943-04-26 Suction cleaner

Country Status (3)

Country Link
US (1) US2406915A (fr)
CH (2) CH243324A (fr)
GB (2) GB572065A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2482166A (en) * 1947-07-16 1949-09-20 William I Gage Stationary filter type suction cleaner
US2605857A (en) * 1946-08-09 1952-08-05 Hoover Co Suction cleaner
US2648867A (en) * 1946-05-10 1953-08-18 Separator Ab Currying machine for connection with vacuum systems
US5129128A (en) * 1990-01-12 1992-07-14 Trc Acquisition Corporation Vacuum cleaner
US5218736A (en) * 1990-01-12 1993-06-15 Trc Acquisition Corporation Vacuum cleaner

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI71660C (fi) * 1983-12-16 1990-11-11 Martti Ilmari Ollila Sugare.
JP4041150B2 (ja) * 2006-03-31 2008-01-30 株式会社東芝 電気掃除機
JP3990428B1 (ja) * 2006-08-25 2007-10-10 株式会社東芝 電気掃除機
CN119327167B (zh) * 2024-12-20 2025-03-11 杭州宝乐事科技有限公司 一种具有高分子烧结微孔滤芯的过滤装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2648867A (en) * 1946-05-10 1953-08-18 Separator Ab Currying machine for connection with vacuum systems
US2605857A (en) * 1946-08-09 1952-08-05 Hoover Co Suction cleaner
US2482166A (en) * 1947-07-16 1949-09-20 William I Gage Stationary filter type suction cleaner
US5129128A (en) * 1990-01-12 1992-07-14 Trc Acquisition Corporation Vacuum cleaner
US5218736A (en) * 1990-01-12 1993-06-15 Trc Acquisition Corporation Vacuum cleaner

Also Published As

Publication number Publication date
GB572065A (en) 1945-09-20
GB571584A (en) 1945-08-30
CH241885A (fr) 1946-04-15
CH243324A (fr) 1946-07-15

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