EP0141084A1 - Vacuum cleaner device - Google Patents

Vacuum cleaner device Download PDF

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Publication number
EP0141084A1
EP0141084A1 EP84109573A EP84109573A EP0141084A1 EP 0141084 A1 EP0141084 A1 EP 0141084A1 EP 84109573 A EP84109573 A EP 84109573A EP 84109573 A EP84109573 A EP 84109573A EP 0141084 A1 EP0141084 A1 EP 0141084A1
Authority
EP
European Patent Office
Prior art keywords
housing
motor
mounting
brush
cleaning device
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.)
Withdrawn
Application number
EP84109573A
Other languages
German (de)
English (en)
French (fr)
Inventor
Robert P. Whitney
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.)
McGraw Edison Co
Original Assignee
McGraw Edison 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 McGraw Edison Co filed Critical McGraw Edison Co
Publication of EP0141084A1 publication Critical patent/EP0141084A1/en
Withdrawn legal-status Critical Current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
    • 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
    • A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
    • A47L5/30—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with driven dust-loosening tools, e.g. rotating brushes

Definitions

  • the pressne invention relates to surface cleaning apparatus and more particularly to vacuum cleaner devices.
  • Upright vacuums typically and normally include a floor sweeping portion and an upright handle which houses or carries a collecting bag.
  • some prior vacuums have a sweeper portion that uses a separate frame to which a brush motor, wheels and the like are mounted.
  • a separate cover is used to conceal and protect the various parts mounted on the frame.
  • Other uprights use a single diecst housing to which the various membere are mounted.
  • Such diecast housings must be drilled after the casting process to provide mounting apertures for the various components.
  • Soms diecast housings have internal structures that are cast simultaneously with the housing, such as vacuum channel walls and the like.
  • One problem experienced with such housings is that these internal structures produce excessive wear on the diecast molds which necessitates repeated and expensive repairs to the molds. Hence such internal structures are often avoided and components ara used instead.
  • Vacuums which have a metal frame or housing present a hazard of electrical sbock if conductor contacts the frame or housing. Conversely, a metals associated thermal conductivity assists in reducing the incidents of overheating.
  • a vacuum cleaning device be lightweight and easily manufactured with a minimum amount of manufacturing process steps. It is also desirable that the vacuum cleaner operate with a high degree of efficiency while protecting against hazards to the operator.
  • the vacuum cleaner of the present invention includes a unitary, structural foam housing with a brush chamber and a vacuum passage channel integrally molded within the housing. Also integrally molded are means for mounting a motor, means for mounting wheel axles and means for mounting an electrical control means.
  • the housing simultaneously provides a structural main frame and cover to which the motor., wheel axles and electrical control means can be mounted.
  • the structural foam housing may also have vacuum channel side walls which extend downwardly, so that a closed vacuum passage can be effected by simply securing a cover over the channel walls.
  • the housing has an upwardly opening ventilation opening located above and generally adjacent the motor.
  • Spaced raised posts on the housing upper surface surround the ventilator opening, and a cover is mounted on the lands to leave generally open spaces which allow the air heated by the motor to flow through the ventilator opening.
  • a brush chamber gasket seals the end wall aperture, and includes a mounting flange and a sealing flange having a receiving aperture for the driven end of the brush.
  • the houaing has a flange mountion aurface oriented adjacent the end wall so that the sealing flange and mounting flange form an angle greater than the angle between the mounting surface and end wall. The sealing flange is therefore forced tightly against the end wall.
  • the electrical circuitry means for controlling the motor is mounted on an electrical mounting panel which is removably secured to the housing so that the panel can be removed from the housing, in order to provide access to the circuitry.
  • the housing may also include an electrical circuitry means containment chamber which is located behind the mounting panel so that the containment chamber and mounting panel form a fully nonconductive enclosure which surrounds the electrical circuitry means.
  • vacuum cleaner 1 (Fig. 1) is of an upright design, having a sweeper portion 2 and a tank or handle portion 3.
  • Sweeper portion 2 includes a unitary, structural foam housing (Fig. 2), which has a brush chamber 16, a vacuum passage channel 20, means 56 for mounting a motor, means 48 for mounting wheel axles, and means 34, 40 for mounting electrical control means all integrally molded with housing 10.
  • Motor 72 (Fig. 2) mounted in housing 10, is vented through vent aperture 58 adjacent motor 72. Vent aperture 58 is covered by a cover 154 mounted on raiaed posts 59 so as to leave a space through which air heated by motor 72 can flow for cooling purposes.
  • Brush chamber 16 is sealed at end wall 28, through which the rotating driven end 82 of brush 80 extends, by brush chamber seal 90 having sealing flange 92 and a mounting flange 94 mounted on a seal pads 30 adjacent end wall 28. Sealing flange 92 and mounting flange 94 define an angle greater than the angle between end vall 28 and seal pads 30, so that sealing flange 92 is pressed tightly against end wall 28 and deformed when mounting flange 94 is mounted on seal pads 30.
  • a plastic circuit box plate 136 is removably secured to housing 10, (Fig. 9) to which various electrical circuitry 144, 146 and 148 is mounted. Plate 136 can be simply removed to access the electrical circuitry for servicing.
  • Housing 10 (Fig. 3) is molded from structural foam plastic and includes a top 12, a front wall 13, a rear wall 14, and two sides 15.
  • Structural foam phenylene oxyde is the preferred material, having a tensile strength of about 3400 p.s.i., a flexural strength of about 6800 p.s.i., a compressive stsength (10% deformation) of about 5200 p.s.i., and ultimate shear strength of about 4450 p.s.i.
  • Other structural foam plastics may be satisfactory substitute materials.
  • Inside housing 10 ia an elongated roughly rectangular brush chamber 16 that extends along the front of housing 10.
  • Brush chamber 16 is separated from the remainder of housing 10 by divider wall 18 and end wall 28, in order to provide a vacuum chamber for vacuum 1.
  • Spaced along divider 18 and front wall 13 are screw apertures 31 which are used to secure a plate or shoe 106 to chamber 16.
  • a rectangular vacuum channel 20 communicative with brush chamber 16 is formed by channel walls 22 that extend downward from top 12.
  • Channel walls 22 also have screw apertures 23 which are used to secure a cover place on channel 20.
  • Vacuum aperture 24 is located at the end of vacuum channel 20 opposite brush chamber 16 and allows dirt picked up by sweeper portion 2 to be transported through housing 10 and into tank portion 3.
  • Located in channel 20 are recesses 26 which extend into top 12 in order to reduce the thickness of top 12 in the vicinity of channel 20.
  • a cover plate fits inside of channel 20 and covers recesses 26 so that channel 20 has a smooth top surface.
  • an aperture 29 that is large enough to receive the driven end 82 of a beater brush 80 (Fig. 13).
  • Adjacent end wall 28 are two seal mounting pads 30.
  • Seal mounting pads 30 are flat surfaces, each of which has an aperture for securing brush chamber seal 90.
  • Pads 30 are generally parallel to each other, but lie in two different verticle planes.
  • An electrical awitch box 34 (Fig. 3) is located in housing 10 adjacent vacuum channel 20.
  • Electrical switch box 34 has walls 36 that extend downwardly from top 12 to forming a quadrangel around an electrical switch mounting surface 38.
  • a wire passage 39 extends from the inside of awitch box 34 through recess 26 ao aa to be communicative with the opposite side of vacuum channel 20.
  • Four screw apertures 37 are located at the corners of walls 36 that are used to secure a cover plate 118 to switch box 34.
  • An open-backed circuit box 40 is formed in the rear of bousing 10 by walls 42 which extend downward from top 12. Walls 42 separate the inside of circuit box 40 from the remainder of the inside of bousing 10, with the exception of a wiring aperture 44 (Fig. 8) located in one of walls 42.
  • a circuit plate 136 carries a variety of strain reliefs and control components located within circuit box 40.
  • On rear wall 14 of housing 10 is a circuit plate mounting surface 46 (Fig. 8) which has screw apertures 43 which are used to secure a circuit plate 136 to housing 10.
  • mounting surfaces 48 for two axles 128 Protruding from rear wall 14 and sides 15 at the rear of housing 10 are mounting surfaces 48 for two axles 128 (Fig. 3). Each mounting surface has a screw receiving aperture 49. Mounting surfaces 48 are disposed in pairs on either side of wheel slots 50. Wheel slots 50 allow the wheels to extend through rear wall 14 (Figs. 5, 7). Located forward of axle mounting surfaces 48 are tank pivot bracket mounting surfaces 52 (Fig. 3). A bracket mounting susface 52 is positioned on either side of two spaced tank bracket slots 54, which allow a tank pivot bracket 124 to pass through housing 10 and be pivotally mounted on mounts 52.
  • motor mouts 56 depend from top 12. Two of the motor mounts 56 are located near the side of vacuum channel 20 opposite electrical switch box 34. Moter mounts 56 are spaced around a roughly rectangular ventilator aperture 58 through top 12. Ventilator aperture 58 passes through a raised top 60. Raised top 60 forms roughly rectangular protrusion up from the smooth top surface of bousing 10 (Figs. 1, 4). Ventilator aperture 58 is located in a recessed portion 62 of raised top 60. A lip 64 encircles recess 62. Lip 64 masks aperture 58 from the aide, and extends upwardly sufficiently that when cover 154 is placed over apertures 58, lip 64 and cover 154 give raiaed top 60 a level upper surface.
  • top 12 On the upper surface of top 12 are posts 59 which are spaced around vent aperture 58. Each post 59 has an aperture 66 in its center. Extending down into recessed portion 62 on one side of aperture 58 are slots 70. Slots 70 extend through top 12 and into vacuum channel walls 22, so that the thickness of walls 22 are reduced at those locations. This wall thickness reduction prevents the formation of hot spots at walls 22 during the molding process, and insures that the structural foam plastic material does not ripple or deform at walls 22 or recess 62.
  • a brush motor 72 (Fig. 2).
  • Motor 72 is secured to mounts 56 by screws with motor 72 positioned adjacent ventilator aperture 58.
  • a less powerful brush is required, so that a amaller brush motor 72 can be used.
  • a smaller brush motor 72 is mounted on mounts 56 by an adaptor bracket 74, shown in phantom in Figure 2.
  • Adaptor bracket 74 has a base 75 which is screwed to two mounts 56. Two extending legs 75a extend laterally to base 75, to which the smaller motor is bolted.
  • a pulley 76 is driven by motor 72, pulley 76 driving a belt 78 that rotates brush 80.
  • Rotating brush 80 is an elongated cylindrical brush rotatably mounted in brush chamber 16. Driven end 82 has a narrowed neck 84 that is received in aperture 29 in end wall 28. Carried on driven end 82 is brush pulley 86 that is driven by belt 78. Driven end 82 is rotatably supported on brush mounting aurfaee 32.
  • Seal 90 Positioned adjacent end wall 28 is a seal 90 for sealing end wall aperture 29 around brush 80.
  • Seal 90 (Figs. 10-13) has a sealing flange 92 from which extends a mounting flange 94. Sealing flange 92 and mounting flange 94 form an angle of one hundred degrees relative to each other.
  • Mounting flange 94 has two protrusions or feet 95, each of which have a hole 96 used to mount seal 90. Feet 9S have faces that lie parallel to each other, but which lie in different horizontal planes in order to mate with seal mounting pads 30 on housing 10.
  • Sealing flange 92 has a flat surface 93 that contacts end wall 28 when seal 90 is secured to housing 10.
  • Sealing flange 92 has an oblong aperture 98 that has a width greater than the diameter of brush pulley 86 but a height less than that of bruah polley 86, so that seal flange 92 can be placed over one edge of brush pully 86 and shifted until seal flange 92 contacts narrow neck 84, allowing seal 90 to be pivoted past remainder of brush pulley 86.
  • a pin 97 In each hole 96 through feet 95 is a pin 97, which fit into holes 33 in seal pads 30. End wall 28 and seal pads 30 form an angle of approximately ninety degrees relative to one another.
  • sealing flange 92 Since the approximately one hundred degree angle formed by sealing flange 92 and mounting flange 94 is greater than the approximately ninety degree angle defined by pads 30 and end wall 28, when in place sealing flange 92 is pressed into abutment and deformed against end wall 28 (Fig. 14). This deformation forms a tight seal between sealing flange 92 and end wall 28.
  • Sealing flange 92 has a shaved area 100 around the circumference of aperture 98 on the surface facing pulley 86. Shaved area 100 provides clearance between pulley 86 and seal 90, so that pulley 86 may rotate freely without interference from seal 90.
  • Sealing flange 92 has a curved bottom edge 102 that extends past the bottom edge of end wall 28 when seal 90 is in position (Fig.14).
  • a brush shoe 104 covers the periphery of bruah chamber 16 and defines a rectangular slot through which air flows into chamber 16 ( F ig. 2).
  • Brush shoe 104 is secured by screws to front wall 13 and divider wall 18, and has a pulley cover portion 106 at one end that covers pulley 86 and end wall 28.
  • On one aide of pulley cover portion 106 is a curved groove 168 which is shaped to sealingly engage bottom edge 102 of seal 90 (Fig. 14).
  • Vacuum channel covers 110, 111 seal vacuum channel 20 (Fig. 2) to form an air impermeable vacuum tunnel for transporting dirt from brush chamber 16 to vacuum aperture 24.
  • Removable cover 110 is secured by a clip 112. Screws 114 hold cover 111 in place.
  • Switch cover 118 covers electrical switch box 34 and the electrical switch mounted within.
  • Switch cover 118 is formed from a plastic material and is secured to walls 36 by screws 120 which are contained completely within walls 36, so that electrical switch box 34 provides a completely nonconductive enclosure for the switch within.
  • Two tank bracket axles 122 are mounted on tank bracket mounts 52, (Fig. 2) with tank mounting bracket 124 extending through slots 54.
  • One axle 122 has a spring 126 which urges tank mount bracket into a normally upright postion.
  • Two axles 128 are mounted on wheel axle mounts 48, each axle 128 having a wheel 130.
  • a circuit box cover 132 (Fig. 2) covers the bottom of circuit box 40 and is screwed to screw apertures 43 in walls 42.
  • a circuit plate 136 (Fig. 7) is screwed onto plate mounting surface 46. With circuit box cover 132 and circuit plate 136 in place, a fully nonconductive containment box surrounds the circuitry contained within.
  • Mounted on plate 136 are two cords 142, one of which permits connection of the machine with an outlet source and the other providing power to the vacuum tank motor located in tank portion 3.
  • Each cord 142 has a strain relief 144 which is located in plate 136 to prevent wear and failure of wires 142 at the point where wires 142 pass through plate 136.
  • Circuit breaker 146 (Fig. 9) is a standard circuit breaker switch that has a threaded metal throat which is used to connect circuit breaker 146 to a mounting surface.
  • Plate 136 carries a ring guard 140 that encircles the threaded metal throat in order to prevent accidental contact of the metal throat by a exposed wire.
  • cover plate 154 On the top of housing 10 is a cover plate 154 (Fige. 5, 6).
  • Cover plate 154 has a surface periphery 156, about which are spaced raised pads 158.
  • cover posts 160 Depending from pads 158 are cover posts 160 that are shaped to be received in posts 59 on housing 10.
  • Cover 154 is rectangular in shape and has a periphery slightly less than the periphery of recessed portion 62 in raised top 60.
  • Gap 162 extends around cover plate 154 and is communicetive with ventilator opening 58 to allow air flow from inside housing 10 through gap 162.
  • a height adjustment cam rod 150 (Fig. 2) of standard design which is held in position by a bracket 152.
  • a bottom plate 164 Pivotally connected to the bottom of housing 10 is a bottom plate 164 on which are mounted front wheels 166 and which is shown in the open position in Fig. 2.
  • Height adjustment bar 150 raises and lowers bottom plate 164 by conventional means and thus adjusts front wheels 166.
  • roller guide 172 Extending around the outer periphery of housing 10 is a rubber guard strip 170 .
  • roller guide 172 Located at the leading edge of the right side 15 of housing 10 is a roller guide 172 (Fig. 5).
  • Roller guide 172 has a housing 174 in which are mounted two rollers 176 that are generally aligned and rotatably connected to housing 174 by rivets 178.
  • Rollers 176 are cylindrical and have vertically oriented axes so they smoothly roll along an abutting vertical surface.
  • Housing 10 is molded as an integral element from structural foam plastic material. Simultaneous with the molding of. housing 10, all of the internal structures, such as divider wall 18, end wall 28, vacuum channel walls 22, electrical switch box 34, and circuitry box 40 are molded to form an integral unit with housing 10. During the molding of housing 10 all of the mounting surfaces, such as seal mounting pads 30, brush mounting surface 32, wheel axle mounting surfaces 48, tank bracket mounting surfaces 52 and motor mounting surfaces 56 are also integrally molded within housing 10, with the mounting surfaces having their respective screw apertures (for self tapping screws) and the like molded in position in the initial molding process. Therefore the housing and all the internal structures are simultaneously molded in a single process step, and apertures need not be drilled nor surfaces ground down after this molding step.
  • the structural foam material should develop an internal porous portion with a closed outer skin on either side.
  • Structural surfaces should have a structural foam depth of about one-quarter inch to develop an adequate porous portion. If the surface depth is less than approximately one-quarter inch, the structural foam may not form the proper strength required to firmly mount all the mechanical and electrical elements.
  • seal 90 Prior to mounting brush 80 in chamber 16, oblong aperture 98 of seal 90 is passed over the top of pulley 86. Seal 90 is slid downward until it contacts narrow neck 84, and is then pivoted around the remainder of pulley 86. Brush 80 is then connected to housing 10. Seal 90 is pressed into position with pins 97 received into holes 33. Brush shoe 104 is screwed into position on housing 10 with bottom edge 102 of seal flange 92 received in shoe slot 108. Seal 90 is doformes by shoe 104 so that the angle between sealing flange 92 and mounting flange 94 is reduced in order to provide a tight seal between sealing flange 92 and end wall 28. Seal 90 reduces air flow around driven end 82 of brush 80 so that efficiency of vacuum cleaner 1 is increased, yet seal 90 does not interfere with the rotation of brush 80.
  • motor 72 When mounted in position, motor 72 is located adjacent ventilation aperture 58.
  • Cover plate 154 is fitted over ventilator opening 58 with cover posts 160 passing through the holes in posts 59 on housing 10. press fasteners fit over the ends of cover posts 160 to hold cover plate 154 in place.
  • Gap 162 allows air flow around cover plate 154 so that the air heated by motor 72 may exhaust upward around cover plate 154 in order to cool both motor 72 and housing 10.
  • Structural foam housing 10 does not conduct heat like aluminum housings or the like. If ventilator opening 58 were not provided, motor 72 could overheat and fail or the portions of housing 10 sursound- ing motor 72 could melt from the trapped beat.
  • circuit box 34 and circuit box 40 Electrical controls are inatalled in electrical switch box 34 and circuit box 40. Wires pass from circuit box 40 through back aperture 44 to motor 72. Other wiring passes through passage 39 into electrical switch box 34 to be connected to the electric awitch mounted on mounts 38. With electrical switch cover 118, circuit box cover 132 and circuit box plate 136 acrewed into place the electrical contsols mounted in housing 10 are all confined within nonconductive enclosures. These nonconductive enclosures provide a barrier to contacting the wiring and reduce the possibility of loose wiring contacting a conductive portion of the housing with consequent hazard to the operator and the vacuum cleaner. Since circuit box plate 136 carries cords 142, circuit breaker 146 and switch 148, these elements are all easily accessible for servicing by simply removing the four screws holding plate 136 in place.
  • Guard ring 140 on the back of plate 136 encircles the metal threaded throat on circuit breaker 146. Should a wire become disconnected within circuit box 140 guard ring 140 tends to shield the circuit breaker throat thus preventing electrical shock to an operator attempting to push the circuit breaker switch.
  • the screws holding the plates in place all extend into the insulating walls where they cannot contact loose wiring or components.
  • Roller guide 172 aligna sweepar portion 2 with a wall or other upright surfaces when cleaning along such surfaces. Also roller guide 172 serves as a bumper that prevents damaga to the wall if sweeper portion 2 is accidentally struck against the wall. Since roller guide 172 has two pivotal rollers 176 that are generally aligned, roller guide 172 orients housing 10 in alignment with the wall being vacuumed against and keeps sweeper portion 2 in close abutment as rollers 176 roll along the wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Electric Suction Cleaners (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
EP84109573A 1983-08-12 1984-08-10 Vacuum cleaner device Withdrawn EP0141084A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52303683A 1983-08-12 1983-08-12
US523036 2000-03-10

Publications (1)

Publication Number Publication Date
EP0141084A1 true EP0141084A1 (en) 1985-05-15

Family

ID=24083417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84109573A Withdrawn EP0141084A1 (en) 1983-08-12 1984-08-10 Vacuum cleaner device

Country Status (9)

Country Link
EP (1) EP0141084A1 (da)
JP (1) JPS6090525A (da)
AU (1) AU3179184A (da)
BE (1) BE900350A (da)
DK (1) DK386684A (da)
FR (1) FR2550436A1 (da)
GB (1) GB2144626A (da)
NO (1) NO843215L (da)
ZA (1) ZA846254B (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0723311B2 (ja) * 1985-04-25 1995-03-15 日本クリニツク株式会社 血小板凝集抑制剤
US5774930A (en) * 1996-01-16 1998-07-07 White Consolidated Industries, Inc. Vacuum cleaner assembly
GB2318279A (en) * 1996-10-16 1998-04-22 Electrolux Ltd Suction cleaner handle
DE102014008442A1 (de) * 2014-05-05 2015-11-05 Stein & Co Gmbh Bodenpflegegerät

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1087547A (fr) * 1953-07-13 1955-02-24 Tornado A G Aspirateur de poussière ménager
FR2075985A1 (da) * 1970-01-08 1971-10-15 Singer Co
US3634905A (en) * 1969-10-27 1972-01-18 Gen Electric Electric vacuum cleaner construction
US3763635A (en) * 1971-09-30 1973-10-09 Whirlpool Co Vacuum cleaner construction
FR2389359A1 (en) * 1977-05-05 1978-12-01 Happich Gmbh Gebr Vacuum cleaner motor housing - has reinforcement incorporating mountings and walls for motor, cables guides and pipe union

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4364146A (en) * 1980-11-26 1982-12-21 Electrolux Corporation Quick cleanout for upright vacuum cleaner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1087547A (fr) * 1953-07-13 1955-02-24 Tornado A G Aspirateur de poussière ménager
US3634905A (en) * 1969-10-27 1972-01-18 Gen Electric Electric vacuum cleaner construction
FR2075985A1 (da) * 1970-01-08 1971-10-15 Singer Co
US3763635A (en) * 1971-09-30 1973-10-09 Whirlpool Co Vacuum cleaner construction
FR2389359A1 (en) * 1977-05-05 1978-12-01 Happich Gmbh Gebr Vacuum cleaner motor housing - has reinforcement incorporating mountings and walls for motor, cables guides and pipe union

Also Published As

Publication number Publication date
NO843215L (no) 1985-02-13
BE900350A (fr) 1984-12-03
AU3179184A (en) 1985-02-14
DK386684A (da) 1985-02-13
FR2550436A1 (fr) 1985-02-15
DK386684D0 (da) 1984-08-10
ZA846254B (en) 1985-03-27
GB2144626A (en) 1985-03-13
GB8420331D0 (en) 1984-09-12
JPS6090525A (ja) 1985-05-21

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Inventor name: WHITNEY, ROBERT P.