US3924291A - Blower connection and exhaust valve configuration for a cleaner or the like - Google Patents

Blower connection and exhaust valve configuration for a cleaner or the like Download PDF

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Publication number
US3924291A
US3924291A US397614A US39761473A US3924291A US 3924291 A US3924291 A US 3924291A US 397614 A US397614 A US 397614A US 39761473 A US39761473 A US 39761473A US 3924291 A US3924291 A US 3924291A
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United States
Prior art keywords
cleaner
exhaust valve
valve
discharge air
extending
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
US397614A
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English (en)
Inventor
Donald B Tschudy
John L Fawcett
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 US397614A priority Critical patent/US3924291A/en
Priority to CA192,565A priority patent/CA1001811A/en
Priority to JP49082089A priority patent/JPS5056757A/ja
Priority to GB40256/74A priority patent/GB1486284A/en
Priority to AU73402/74A priority patent/AU484127B2/en
Priority to DE19742444430 priority patent/DE2444430A1/de
Priority to FR7431334A priority patent/FR2244109A1/fr
Application granted granted Critical
Publication of US3924291A publication Critical patent/US3924291A/en
Priority to CA248,955A priority patent/CA1007813A/en
Assigned to MAYTAG CORPORATION, A DE CORP. reassignment MAYTAG CORPORATION, A DE CORP. MERGER (SEE DOCUMENT FOR DETAILS). JANUARY 26, 1989 - DELEWARE Assignors: CHICAGO PACIFIC CORPORATION
Assigned to HOOVER COMPANY, THE reassignment HOOVER COMPANY, THE NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS). Assignors: MAYTAG CORPORATION
Assigned to CHICAGO PACIFIC CORPORATION, A CORP. OF DE reassignment CHICAGO PACIFIC CORPORATION, A CORP. OF DE MERGER (SEE DOCUMENT FOR DETAILS). DECEMBER 31, 1987 - DELAWARE Assignors: HOOVER COMPANY, THE, (MERGED INTO)
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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/009—Details of suction cleaner tools for additional purposes
    • 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
    • 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
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/242—Hose or pipe couplings

Definitions

  • ABSTRACT A floor care appliance is provided with an exhaust valve and blower conversion arrangement in which the exhaust valve has high air flow passing characteristics.
  • the exhaust valve includes a fixed, serpentine, vertically extending member and a movable, serpentine, vertically extending member. When the undulations on the two members coincide the valve is closed and blower conversion may be made. When the undulations do not coincide, the valve is open, thus offering a relatively unobstructed, large 'flow path for air exiting around the periphery of the cleaner.
  • Cleaner conversion and exhaust air structures in an attempt to meet these goals, have included: cleaner structures without a conversion valve in which both suction cleaner air and air for blower conversion exits from the cleaner through a single port or opening, adapted for hose connection; cleaners in which an internal valve directs exiting air selectively into one of a pair of passageways, one leading to a hose connector and the other leading to a separate exit means that may discharge the air generally peripherally or locally of the cleaner housing and cleaners having a valving means close to the cleaner discharge which are converted, upon closing of the valve flow passageway to discharge, to blower operation.
  • the invention is provided in a canister cleaner, as exemplary of a floor care appliance, with the same including an exhaust valve and blower conversion arrangement disposed generally peripherally near the cleaner bottom side.
  • the exhaust valve and blower conversion arrangement exhausts air peripherally around the bottom of the canister cleaner through an opening formed be tween a bottom supporting pan for the cleaner and the bottom of an intermediate shell which forms, in large part, the bag-receiving cavity of the cleaner.
  • the exhaust valve has its stationary sealing valve part disposed in the bottom surface of the bottom of the intermediate shell, with the same integrally formed therein when the intermediate shell is press-formed during manufacture.
  • the stationary valve part takes the form of a downwardly extending, somewhat annular, closed peripheral Wall which, in plan view, has a series of regular undulations that provide peaks and valleys in this valve part as they extend around the bottom of the intermediate shell to form their closed, serpentine loop.
  • the movable valve part mounted beneath this valve part is the movable valve part that may be conveniently formed from a plastic molding of generally annular shape that includes an integral upstanding wall that undulates as it extends around this valve part to form a closed loop having, in plan view, a series of peaks and valleys.
  • the movable valve part is spring urged to an out-of-phase relationship with the fixed valve part so that the peaks of one correspond to the valleys of the other and a flat portion of the valve base covers a bottom pan blower access port.
  • This provides an extremely large flow path area that is enhanced by making the diameters of the fixed and movable valve parts large so that it places them radially outwardly (peripherally) of the fan and diffuser system for the canister cleaner, in the flow path of cleaner suction air immediately prior to discharge of it outwardly of the cleaner.
  • Blower conversion is accomplished by movement of the movable valve part rotatably, through the aegis of an integral, radially extending lever tab, until the inphase relationship is reached with the fixed valve part and the blower access port in the bottom pan is uncovered.
  • a circular aperture that includes the female portions of a bayonet Connection is formed in the movable valve part, with this aperture located so that it conforms to a peak in the fixed valve part when the valve parts are in an in-phase relationship to permit insertion and confluent communication between the closed volume formed by the walls of the two valve parts, the bottom pan, and a hose having a hose fitting with male portions of a bayonet coupling. Blower conversion is then completed by insertion of the male hose connector through the bottom pan access port and into twist-lock engagement with the aligned movable valve exhaust port.
  • FIG. 1 is a cross-sectional elevational view of a canister cleaner incorporating the invention
  • FIG. 2 is a bottom plan view of the canister cleaner of FIG. 1;
  • FIG. 3 is a view of the canister cleaner taken on line 3-3 of FIG. 1; r
  • FIG. 4 is a cross-sectional view of the canister cleaner taken on line 4-4 of FIG. 1;
  • FIG. 5 is a sectional view, similar to FIG. 4, but showing the valve parts in an in-phase relationship
  • FIG. 6 is a fragmentary sectional elevational view of the invention taken generally on lines 66 of FIG. 4;
  • FIG. 7 is a fragmentary sectional elevational view of the invention taken generally on lines 7-7 of FIG. 5;
  • FIG. 8 is a fragmentary sectional elevational view of the invention taken on line 88 of FIG. 5;
  • FIG. 9 is a plan view of the movable valve member in detached condition.
  • a housing 11 with a hinged lid 14 mounted to an intermediate housing shell 12.
  • a bottompan 16 and a medallion section 18 also cooperate to form housing
  • a motor 20 drives a fan system 22, including a pair of fans 24, 26, to provide a suction flow of cleaner air passing into cleaner through a hose coupling fitting 28.
  • This hose coupling communicates with a chamber 30, enclosed by housing 11, in which a dirt-collecting bag 32 is disposed so as to separate dust and dirt from the dirt-laden suction air so that relatively clean air may pass through the motor for cooling the same.
  • This air then passes through the fan system 22 for peripheral discharge between a radially outer termination of the intermediate shell 12 and the bottom pan 16 through an opening 34.
  • Cleaner 10 is transported over and supported above the floor by large rear wheels 44, 44 (only one shown) and front caster wheel 46, with a handle 42 also providing a convenient grasping means for transportation of the canister cleaner 10.
  • Suction air flow within the cleaner is generally conventional, passing downwardly through a secondary filter and, as set out, previously the motor 20.
  • first stage fan 26 the flow of cleaner air passes through a first stage diffuser 52 of fan system 22 which directs the air flow, as indicated by the flow arrows, to an eye of the second stage fan 24, from whence air is discharged into a second stage diffuser 54 of fan system 22 that directs the cleaner air flow upwardly, axially relative to the fan system 22 into a tuming chamber 56, formed between a radially inward portion of the bottom face of intermediate shell 12 and an upper, outer periphery of second stage diffuser 54.
  • Air flow is then through a passage 58, located between portions of the bottom face of intermediate shell 12 and portions of a top face of bottom pan 16, to. eventual ambient discharge.
  • An auxiliary flow of cooling, induced, ambient air may be introduced to the canister cleaner 10 to reduce, primarily, air discharge temperature of 1 the total air flow discharged from the canister cleaner.
  • This air may conveniently enter the cleaner 10 through a series of ports 59 in the bottom face of bottom: pan 16 and thence through a series of ports 60 (note flow arrows).
  • second stage diffuser 24 This air then moves along a bottom face of the second stage fan 24 to mix with air discharged from it as it passes through the diffuser.
  • a resilient mounting and sealing arrangement for the fan system 22 and motor 20 is provided in the lower portions of the canister cleaner 10.
  • a pair of vertically spaced, resilient, annular ring members 62 and 64 perform this function.
  • the lower of these resilient ring members is ring member 62. It is disposed between a top face of the bottom pan 16 and a bottom face of ,sec- 0nd stage diffuser 54 to. supportingly maintain this diffuser and, through it, the fan system 22 and motor 20 in a resilient, vibration arresting relationship with the bottom pan 16.
  • the upper resilient ring 64 is mounted between the innermost portions of the bottom face of intermediate shell 12 and an upper face of a motor end support plate 66 so that the resilient ring 64 resiliently and vibrationally isolates the intermediate shell I 12 from the motor 20 and fan system 22.
  • the resilient ring members 62, 64 form a sandwich about the motor and fan system to cocoon the same relative to. outward passage of noise and vibration.
  • Exhaust valve and blower conversion means 70 is located between the bottom of the intermediate shell 12 and the top of the bottom pan 16 in the passageway 58 so as to be capable of controlling the outward flow of discharge air from cleaner 10. As can be clearly seen in FIG. 1, the exhaust valve and blower conversion means 70 is located radially outwardly of the fan system 22 and extends around it outwardly of its periphery adjacent the outer periphery of canister cleaner 10.
  • valve wall 72 may be formed in a conventional manner, in a bottom, generally flat, radially intermediate laterally extending portion of intermediate shell 12 when the same is made by press-forming.
  • This valve wall includes a pair of tapered, radially spaced inner and outer portions 76, 78, respectively, that merge into a bottom portion 80 of widened extent so as to provide a seat for a top face 82 of valve wall 74.
  • valve wall 72 because of its integral relationship with relatively fixed intermediate shell 12 is the fixed valve part, while valve wall 74 is made the movable valve part by being made an integral portion of a relatively laterally extending movable valve means 83, the movable valve means 83 being mounted for guided rotation on the bottom pan 16 through an annular, upstanding rib 84, integral with the bottom pan and conveniently formed at the time of formation of bottom pan 16.
  • the movable valve means 83 is generally flat but includes a downwardly opening, grooved portion 86 that extends annularly, nearly the whole way around the approximately annular movable valve means 83, terminating only in the area utilized for blower conversion.
  • This grooved portion receives the rib 84 of bottom pan 16 so that it is guided as aforesaid as movable valve means 83 is rotated.
  • the movable valve means rotates from the position illustrated in FIGS. 5, 7 and 8, it opens exhaust valve and blower conversion means 70 to permit flow of cleaner air to pass out through the cleaner exit opening 34. This is accomplished in the following manner.
  • valve wall portions 72 and 74 are in the form of an undulating, serpentine configuration of generally annular extent and closed configuration when viewed in plan, with the undulating, serpentine arrangement of each being similar to the other so that they may conform and have abutting edges when placed in an inphase relationship (e.g., FIG. 5).
  • the valve wall portions 72 and 74 when the valve wall portions 72 and 74 are in an out-ofphase relationship (e.g., FIG. 2), the valve wall portions 72 and 74 only have conforming abutment at widely spaced points on the bottom portion 80 and top face 82 of valve walls 72 and 74, respectively.
  • chain dashed line 88 (FIG. 4) has been drawn to represent the mean circumference of the radial width of valve walls 72 and 74.
  • a series of valleys or inner radial portions 90 and 92 are formed by the valve walls 72, 74, respectively, inwardly of the mean circumference 88 and a series of peaks or outer radial portions 94 and 96 are formed by the valve walls 72, 74, respectively, outwardly of the mean circumference 86.
  • the area between a peak on one of the valve parts and the valley on the other valve part, e.g., area 98 represents one segment of the cross-sectional area of flow path for the exiting cleaner air.
  • the total area available for exit air flow is, thus, the summation of the individual areas 98.
  • An extremely large air flow is thereby provided, relative to valve size, by the undulating, serpentine configuration of the valve walls or dikes so that relatively little pressure drop and noise occurs due to valve-imposed flow restriction resistance with the valve in open condition.
  • the movable valve means 83 is normally urged counterclockwise to a position where the exhaust valve and blower converter means is fully open by a biasing means consisting of a tension spring 100 (FIG. 2) that is mounted to a radially extending tab 102, integral with movable valve means 83.
  • the opposite, fixed end of the spring 100 engages under a struck-out tab 104 formed on bottom pan 16 so that the spring has a fixed reaction point to place it in resilient tension relative to movable valve part 83.
  • a flat 115 on movable valve means 83 covers a port 114 in the bottom pan to prevent air exit therethrough
  • an additional radially extending, integral tab 106 is provided on movable valve means 83.
  • This tab extends outwardly past the radial outward termination of the bottom plate 16, being bent to extend thereby, and through opening 34 so as to be easily graspable and manipulatable by the user of the canister cleaner 10.
  • the tab 106 then can be manually manipulated clockwise to bring the valve walls 72 and 74 into an in-phase relationship. In this location of the valve walls blower conversion is made.
  • FIGS. 2 and 4 it can be seen that one of the peaks on each of the valve walls 72 and 74 is made slightly larger to provide a larger flattened area 108 on the movable valve means 83 to accommodate a generally conventional, standard hose coupler l 10 having a standard female-type bayonet fitting 112 for connection to a hose 126. provided with the male half of the bayonet fitting and utilizable for blowing purposes. Connection to the hose coupler is made through the port 114 extending through bottom pan 16, with a male bayonet hose coupler part 128 extended through this port and lockingly coupled with hose coupler 110.
  • This locked coupling also prevents movable valve means 83 from again rotating counter-clockwise due to the biasing of spring 100, since the male hose coupling part abuts against the internal circular periphery of hose coupler 110 to prevent it. Uncoupling of the blowing hose 126 from hose coupler 110 and its removal from port 114 again permits movable valve means 83 to rotate counter-clockwise until the position illustrated in FIG. 4 is reached. Port 114 is closed by a flat portion 115 of movable valve means 83 in this position so that all air flow is between the valve'walls 22 and 74 to exit 34.
  • Stop 116 is formed by one of the studs 68 and a spacer 120 mounted thereon, with the stud and included spacer, of course, fixed with respect to bottom pan 16.
  • the stop 116 is engageable with a ledge 122 integral with the movable valve means 83 to limit counter-clockwise rotation of this valve part under the bias of spring 100.
  • Stop 118 is similarly formed by a stud 68 around which is a spacer 120.
  • a second ledge 124 again formed integrally with movable valve means 83, may abut the stop 118 when the tab 106 is manually moved clockwise. In this abutting position overtravel of the movable valve means 83 is prevented and the bore 114 is aligned with the hose coupler 110.
  • An exhaust valve and blower conversion arrangement for use with a floor care appliance having a fan for inducing a flow of discharge air and an apertured housing section having a first aperture therein for providing an exit, at least part of the time, for said discharge air and including;
  • said second relatively flat, laterally extending portion having a second aperture extending therethrough
  • said first and second transversely extending dikes having substantially closed configurations, in plan view, and being undulating in their closed, configured extent whereby, when abutting conformance of said undulations is effected alignment of said first and second apertures is also effected said first and second apertures providing a passageway whereby said blower conversion is effectable.
  • said undulations upon assuming a non-abutting conformance, permit exit of discharge air therebetween in a substantially unimpeded manner.
  • An exhaust valve arrangement for a floor care appliance having a fan means providing a discharge air flow including;
  • each of said dikes taking the form, in plan view, of
  • one of said first and second members includes a hose coupling structure
  • a hose and means for securing said hose is provided for securement to said hose coupling structure
  • said means for securing said hose when attached to said hose coupling structure abuttingly interfering with movement of one of said first and second members to non-abutting conformance with the other of said members.
  • one of said first and second members is biasingly maintained with said dikes in one of said abutting and non-abutting positions by a connected resilient spring biasing arrangement.
  • each of said connected series of radially inner and outer segments provide a serpentine-like configuration to each of said dikes.
  • said dikes each take the general form of a closed annulus.
  • a cleaner having an exhaust valve and blower conversion arrangement including;
  • a bottom member for said cleaner having an outer p p y b. a member having a relatively flat portion disposed above said bottom member and forming a part of the bag-receiving cavity for said cleaner,
  • said passageway also extending peripherally around said fan system, and f. a valve means for controlling the flow of discharge air through said passageway, including a portion of said passageway, wholly disposed radially outwardly of said fan system, and also extending peripherally around said fan system but within the space between said bottom member and said flat portion whereby discharge air is discharged with lowered noise and reduced back pressure as it passes through the valve means when open because of the large valve flow area occasioned by the peripheral extent and placement of said valve means.
  • said valve means including a portion of said passageway, includes a vertically extending movable dike member and a vertically extending fixed dike member, and
  • each of said dike members has a serpentine-like configuration in plan view, capable of abutting conformance for preventing the discharge of discharge air therebetween.
  • valve member extending annularly around said fan means and disposedly mounted in said passageway means for movement relative to said passageway means to abuttingly conform with and move from conformance with a portion of said passageway means surrounding said fan means, to alternately interrupt and permit surrounding peripheral exit flow of said discharge air.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Suction Cleaners (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US397614A 1973-09-17 1973-09-17 Blower connection and exhaust valve configuration for a cleaner or the like Expired - Lifetime US3924291A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US397614A US3924291A (en) 1973-09-17 1973-09-17 Blower connection and exhaust valve configuration for a cleaner or the like
CA192,565A CA1001811A (en) 1973-09-17 1974-02-14 Blower connection and exhaust valve configuration for a cleaner or the like
JP49082089A JPS5056757A (enrdf_load_stackoverflow) 1973-09-17 1974-07-17
GB40256/74A GB1486284A (en) 1973-09-17 1974-09-16 Suction cleaning appliances having blower-conversion valves
DE19742444430 DE2444430A1 (de) 1973-09-17 1974-09-17 Geblaesekonvertierbarkeits- und auslassventilanordnung fuer staubsauger oder dgl.
FR7431334A FR2244109A1 (enrdf_load_stackoverflow) 1973-09-17 1974-09-17
AU73402/74A AU484127B2 (en) 1974-09-17 Blower connection and exhaust valve configuration fora cleaner orthe like
CA248,955A CA1007813A (en) 1973-09-17 1976-03-26 Blower connection and exhaust valve configuration for a cleaner or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US397614A US3924291A (en) 1973-09-17 1973-09-17 Blower connection and exhaust valve configuration for a cleaner or the like

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US3924291A true US3924291A (en) 1975-12-09

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Application Number Title Priority Date Filing Date
US397614A Expired - Lifetime US3924291A (en) 1973-09-17 1973-09-17 Blower connection and exhaust valve configuration for a cleaner or the like

Country Status (6)

Country Link
US (1) US3924291A (enrdf_load_stackoverflow)
JP (1) JPS5056757A (enrdf_load_stackoverflow)
CA (1) CA1001811A (enrdf_load_stackoverflow)
DE (1) DE2444430A1 (enrdf_load_stackoverflow)
FR (1) FR2244109A1 (enrdf_load_stackoverflow)
GB (1) GB1486284A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2722327A1 (de) * 1976-05-18 1978-02-02 Microdot Inc Kontaktanordnung
US4451951A (en) * 1982-09-15 1984-06-05 Kioritz Corporation Engine-driven blower/dust collector
US4683608A (en) * 1986-01-27 1987-08-04 Shop-Vac Corporation Alternate blower outlet for vacuum cleaner
US6385809B1 (en) * 2000-03-03 2002-05-14 Emerson Electric Co. Gasketless wet/dry vacuum with switchable blowing
US6499182B2 (en) 2001-05-29 2002-12-31 Shop-Vac Corporation Convertible blower port for vacuum cleaner
US20060179601A1 (en) * 2005-02-17 2006-08-17 Shop Vac Corporation Removable internal air diffuser
US20070094838A1 (en) * 2005-11-02 2007-05-03 The Scott Fetzer Company Vacuum cleaner with removable cleaning attachment
US20130017079A1 (en) * 2011-07-14 2013-01-17 Jonathan Armstrong Debris blowing and/or vacuum appliance
US11116369B2 (en) 2016-04-27 2021-09-14 Diversey, Inc. Vacuum cleaner
US12270419B2 (en) 2021-03-23 2025-04-08 Techtronic Cordless Gp Electric tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2560098Y2 (ja) * 1990-10-19 1998-01-21 廣光 奥村 吸引装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2027158A (en) * 1931-03-07 1936-01-07 Electrolux Corp Vacuum cleaner
US2751038A (en) * 1954-05-14 1956-06-19 Hoover Co Air supported cleaner with control
US2757753A (en) * 1954-06-18 1956-08-07 Royal Appliance Mfg Suction cleaner diverter valve construction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2027158A (en) * 1931-03-07 1936-01-07 Electrolux Corp Vacuum cleaner
US2751038A (en) * 1954-05-14 1956-06-19 Hoover Co Air supported cleaner with control
US2757753A (en) * 1954-06-18 1956-08-07 Royal Appliance Mfg Suction cleaner diverter valve construction

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2722327A1 (de) * 1976-05-18 1978-02-02 Microdot Inc Kontaktanordnung
US4451951A (en) * 1982-09-15 1984-06-05 Kioritz Corporation Engine-driven blower/dust collector
US4683608A (en) * 1986-01-27 1987-08-04 Shop-Vac Corporation Alternate blower outlet for vacuum cleaner
US6385809B1 (en) * 2000-03-03 2002-05-14 Emerson Electric Co. Gasketless wet/dry vacuum with switchable blowing
US6499182B2 (en) 2001-05-29 2002-12-31 Shop-Vac Corporation Convertible blower port for vacuum cleaner
US7627928B2 (en) 2005-02-17 2009-12-08 Shop-Vac Corporation Removable internal air diffuser
WO2006088536A1 (en) * 2005-02-17 2006-08-24 Shop Vac Corporation Removable internal air diffuser
US20060179601A1 (en) * 2005-02-17 2006-08-17 Shop Vac Corporation Removable internal air diffuser
US20100071151A1 (en) * 2005-02-17 2010-03-25 Shop Vac Corporation Removable Internal Air Diffuser
AU2005327466B2 (en) * 2005-02-17 2010-11-11 Shop Vac Corporation Removable internal air diffuser
US9107549B2 (en) 2005-02-17 2015-08-18 Shop Vac Corporation Removable internal air diffuser
US20070094838A1 (en) * 2005-11-02 2007-05-03 The Scott Fetzer Company Vacuum cleaner with removable cleaning attachment
US7690078B2 (en) 2005-11-02 2010-04-06 The Scott Fetzer Company Vacuum cleaner with removable cleaning attachment
US20130017079A1 (en) * 2011-07-14 2013-01-17 Jonathan Armstrong Debris blowing and/or vacuum appliance
US11116369B2 (en) 2016-04-27 2021-09-14 Diversey, Inc. Vacuum cleaner
US11452412B2 (en) 2016-04-27 2022-09-27 Diversey, Inc. Vacuum cleaner
US11937759B2 (en) 2016-04-27 2024-03-26 Diversey Switzerland Services Gmbh Vacuum cleaner
US12270419B2 (en) 2021-03-23 2025-04-08 Techtronic Cordless Gp Electric tool

Also Published As

Publication number Publication date
JPS5056757A (enrdf_load_stackoverflow) 1975-05-17
DE2444430A1 (de) 1975-04-03
GB1486284A (en) 1977-09-21
AU7340274A (en) 1976-03-25
CA1001811A (en) 1976-12-21
FR2244109A1 (enrdf_load_stackoverflow) 1975-04-11

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Date Code Title Description
AS Assignment

Owner name: MAYTAG CORPORATION, A DE CORP.

Free format text: MERGER;ASSIGNOR:CHICAGO PACIFIC CORPORATION;REEL/FRAME:005241/0170

Effective date: 19890126

Owner name: CHICAGO PACIFIC CORPORATION, A CORP. OF DE

Free format text: MERGER;ASSIGNOR:HOOVER COMPANY, THE, (MERGED INTO);REEL/FRAME:005241/0161

Effective date: 19871221

Owner name: HOOVER COMPANY, THE, OHIO

Free format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNOR:MAYTAG CORPORATION;REEL/FRAME:005241/0179

Effective date: 19890223