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Publication numberUS3184775 A
Publication typeGrant
Publication dateMay 25, 1965
Filing dateMay 22, 1962
Priority dateMay 22, 1962
Publication numberUS 3184775 A, US 3184775A, US-A-3184775, US3184775 A, US3184775A
InventorsDowney David F, Moughty John J
Original AssigneeElectrolux Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electric carpet sweepers
US 3184775 A
Abstract  available in
Images(2)
Previous page
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Claims  available in
Description  (OCR text may contain errors)

y 1965 D. F. DOWNEY ETAL 3,184,775

ELECTRIC CARPET SWEEPERS 2 Sheets-Sheet 1 Filed May 22, 1962 INVENTORS Dav/0 FDowNEY Jomv J/Woueurr THEIR ATTORNEY y 1965 D. F. DOWNEY ETAL 3,184,775

ELECTRIC CARPET SWEEPERS 2 Sheets-Sheet 2 Filed May 22, 1962 a ain---" INVENTORS Dav/0 FIDowNEY Jom/ J Mousnrv THEIR ATTORNE United States Patent Edd 5,775 ELECTlRl-[C CAillE'lt SWEEPERS David F. Downey, Stamford, and Echo .l. Moughty, (liid Greenwich, Conn, assigners to Electrolux Corporation, Old Greenwich, Conn, a corporation of Delaware Filed May 22, 1962, Ser. No. 196,781 9 Claims. (Cl. 15 328) Our invention relates to a combined carpet sweeper and suction nozzle for a vacuum cleaner.

In according with our invention there is provided a device including a rotary brush driven by a low voltage electric motor. This brush is arranged to sweep dirt and other surface litter from a rug into a dirt receiving compartment where it remains if the device is being used as a carpet sweeper. A rechargeable storage battery provides the power for operating the motor under these conditions. The device is provided with a hollow handle for moving it back and forth over the floor and which communicates with the dirt receiving compartment and which may be connected to a vacuum cleaner when it is desired to use it as a suction nozzle. Under these conditions air is caused to flow inwardly through the dirt receiving compartment and through the handle to the vacuum cleaner, thus carrying along dirt removed from the rug or other surface being cleaned, as well as picking up and removing any dirt which has previously been accumulated in the dirt receiving compartment. When used as a suction noz- 21o an electric cord is preferably provided which may be connected to the circuit in the vacuum cleaner to thereby supply current to a step-down transformer in the nozzle which supplies low voltage current to operate the motor for driving the brush and also for recharging the storage battery, a suitable rectifier bein provided for converting the alternating current from the transformer to direct current for charging the battery.

Further objects and advantages of our invention will be apparent from the following description when considered in connection with the accompanying drawings which form part of this specification and of which:

FIG. 1 is a top view of a combined carpet sweeper and vacuum cleaner nozzle in accordance with our invention, part of the cover being broken away;

FIG. 2 is a cross-sectional view taken on the line 2-2 of FIG. 1;

FIG. 3 is a cross-sectional view taken on the line 33 of FIG. 1;

FIG. 4 is a cross-sectional view taken on the line 4- l of FIG. 1;

FIG. 5 is a bottom view of the device shown in the preceding figures;

FIG. 6 is a fragmentary view of a portion of the device as shown in FIG. 1;

FIG. 7 is a view on a reduced scale of the combined carpet sweeper and nozzle connected to a vacuum cleaner; and

FIG. 8 is a wiring diagram showing the circuitry of the device shown in the preceding figures.

Referring to the drawings, reference character it) designates generally the combined carpet sweeper and vacuum cleaner nozzle. it includes a base member 12, which preferably is a die casting. One longitudinal edge of the base member 12 is formed as a tunnel 1 1- within which is rotatably mounted a cylindrical brush member 16. The rear wall of the tunnel 14 is formed with an opening 1 .3, shown in FlGS. 3 and 4, which communicates with a dirt receiving compartment 24) formed in the base member 12. Compartment 24B is formed with an open bottom which, however, is normally closed by means of a pivoted cover member 22.

Base member 112 is formed with a pasageway 24 shown Patented May 25, 1965 'ice in FIG. 3 which communicates with the center of dirt receiving compartment 2t) and extends backwardly therefrom to a semi-circular seat formed in the base member. A coupling member 2 5 having a cylindrical end portion is pivotally mounted on the semi-cylindrical seat and is secured in place by means of a cap member 32 which is likewise formed with a semi-cylindrical seat. A preferably rigid hollow member 3 is secured to coupling n1ember 26 and consequently may be pivoted with respect to the base member and associated parts while remaining in communication with passageway 24.

The lower surface of base member 12 is covered by a surface contacting plate secured to the base member by screws 27. This plate is formed with an elongated opening 29 in line with the open bottom of compartment 2t) and which is normally occupied by the pivoted cover member 22. Plate 25 is also formed with an elongated opening 31 in line with tunnel 14 and brush 1d, the bristles of the latter extending through opening 31 so as to contact and sweep over the surface eing cleaned. Preferably a number of bridges 33 extend across opening 31 to prevent a rug or the like from being drawn too far into the opening when the device is used as a suction nozzle. In addition, an opening 35 may be provided in plate 25 through which projects a roller 37 which is rotatably mounted in base member 12 and serves to support the rear edge of the device, particularly when it is used on a hard surface.

A low voltage direct current electric motor 36 is mounted on the upper surface of base member 12 behind the dirt receiving compartment 29 and to one side of the coupling member 26. A flexible belt 38 driven by the motor 36 engages a pulley dtl mounted on the shaft of brush to so as to rotate the latter.

A rechargeable storage battery 42 is removably mounted by means of a strap 4-3 on the upper surface of base member 12 behind the dirt compartment 4d and on the opposite side of coupling member 26 from the electric motor. Also mounted in this space are a step-down transformer 44, a resistor and a full wave rectifier 48, the electrical connection of which are shown in detail in FIG. 8. The motor, storage battery, transformer, resistor and r ctifier are enclosed by means of a hood member which is secured to the base member 12 in any suitable manner and is provided with an opening 52 through which the coupling member 26 extends. Preferably the portion 54 of the hood member which is over the storage battery 42 is connected to the remainder of the hood member by means of a hinge so that it may be readily pivoted to the position shown in FIG. 7 so as to expose the battery 42 in the event it is necessary to replace the latter.

As is shown in the wiring diagram of FIG. 8, the primary winding 53 of the transformer 44- is supplied with normal house current at 120 volts and cycles through a pair of conductors 6d. The secondary winding 62 of the transformer is provided with a center tap which is connected by means of a conductor 64 to one terminal of the resistor t6, the other terminal being connected to one side of the battery 42. The other side of the battery is connected by conductors as and 63 to the opposite terminals of secondary so, the rectifiers 4-3 being interposed in these conductors so as to provide full wave rectification.

()ne terminal of the motor 36 is connected to one side of the battery 4?. by means of a conductor 7d, while the other terminal of the motor is connected by a conductor 72 with the blade '74 of a single pole, double throw switch. One pole of the switch is connected by conductor 76 with the opposite side of the battery 42, while the other pole is connected by means of the conductor '73 with the conductor which connects the center tap of the secondary with the resistor 46.

The pair of conductors 60 which supply the primary of the transformer are incorporated in an electric cord which extends along the handle 34-, preferably through a channel St) formed on the exterior of the handle. At the upper end the cord 60 may be provided with an electric plug 32 which may be connected to a suitable receptacle on the exterior of a flexible hose 84 which extends from the upper end of hollow handle 34 to the inlet of an electric vacuum cleaner 86, and the hose carries suitable electric conductors which may be connected in well known manner to the electric circuit of the vacuum cleaner, which includes a cord 88 adapted to be plugged into any suitable outlet. A plug or stopper 9% is preferably secured to the upper end of the handle 34 by means of a flexible strap or chain 92 and may be inserted into the upper end of the handle when the hose 84 is disconnected therefrom.

The above described device operates as follows:

If it is desired to use the device simply as a carpet sweeper, the plug 90 is placed in the upper end of the handle 34 and the switch shown in FIG. 8 is thrown to the right-hand position, thus supplying the motor 36 with direct current from the battery 32. Operation of the motor rotates the brush l6 and if the device is moved by the handle over a surface of a rug or the like, the rotating brush sweeps surface dirt and other litter therefrom through the openings 31 and 18 into the dirt receiving compartment 20, where it is retained in the manner usual with carpet sweepers. The plug ht) prevents any dirt or dust from escaping through the hollow handle. The dirt may be removed from the compartment 2th by holding the device over a suitable receptacle and pivoting the cover member 22 to open position, thus permitting the dirt to fall out the now open bottom of the dirt receiving compartment.

On the other hand, the dirt may be allowed to remain within the compartment to be removed therefrom by airflow when the device is next used as a vacuum cleaner nozzle. This is accomplished by removing the plug W and connecting the hose 84 to the upper end of the handle 34 and by connecting the electric plug 32 to the receptacle on the hose 84. When the vacuum cleaner is operated air is caused to enter the compartment 20 through the openings 31 and 18 and to leave through the passageway 24 leading to the coupling member 26 and hollow handle 34. This flow of air picks up any dirt which may be in the dirt receiving compartment 2% At the same time, the supply of electric current through the conductor 60 energizes the transformer i4 and causes a low voltage alternating current to appear at the terminals of the secondary winding 62. This alternating current is rectified by the rectifiers 4-8 and if the switch 74 is thrown to the left-hand position, the motor 3:6 is supplied with low voltage rectified current, while at the same time this rectified current is supplied to the battery through the resistor 46 so as to recharge the battery during the time the device is used as a suction nozzle.

Operation of the motor rotates the brush 16 as previously described, and the brush aids the stream of air in removing dirt from the surface being cleaned, and this dirt is carried along through the compartment 2% and the passageway 24 to the hollow handle 34 and thence through the hose 84 to the vacuum cleaner.

Should it occur that the device is not used as a suction nozzle a sufiicient proportion of the time to maintain the battery properly charged, the plug 82 may be connected directly to any 120 volt outlet while the device is stored, in this case the switch 74 being in its open position. Under these conditions rectified low voltage direct current will be supplied through the resistor 46 to recharge the battery, but the motor 36 will not operate.

We have thus provided a device which may be used as an electric carpet sweeper which is particularly adapted for quick clean up jobs, and which also may be used as a power nozzle in conjunction with a vacuum cleaner for a more thorough and extensive cleaning using both the sweeping action of the brush and the cleaning action of the air. Under normal conditions of use the battery will be kept charged automatically and without conscious attention on the part of the operator due to the fact that it is recharged whenever the device is used as a vacuum cleaner nozzle.

While we have shown a more or less specific embodiment of our invention, it is to be understood that this has been done for the purpose of illustration only and that the scope of our invention is not to be limited thereby, but is to be determined from the appended claims.

What we claim is:

1. In an electric carpet sweeper, a hollow body formed with a lower elongated inlet opening adapted to be moved over a surface to be cleaned, walls forming a dirt-receiving compartment within said body and communicating with said opening, a brush rotatably mounted in said body and extending through said opening whereby rotation thereof sweeps dirt from said surface through said opening into said compartment, an electric motor for driving said brush, a rechargeable electric battery within said body for supplying current to said motor, conduit means for connecting said compartment to an electric vacuum cleaner for removing accumulated dirt from the compartment and for inducing flow of air through said inlet opening to aid said brush in removing dirt from said surface, and electric conductor means associated with said conduit means for supplying current from said vacuum cleaner for recharging said battery.

2. In an electric carpet sweeper, a hollow body formed with a lower elongated inlet opening adapted to be moved over a surface to be cleaned, walls forming a dirt-receiving compartment Within said body and communicating with said opening, a brush rotatably mounted in said body and extending through said opening whereby rotation thereof sweeps dirt from said surface through said opening into said compartment, an electric motor for driving said brush, a rechargeable electric battery within said body for supplying current to said motor, a rigid conduit pivotally mounted on said body for moving the latter over said surface and for connecting said compartment to an electric vacuum cleaner for removing accumulated dirt from the compartment and for inducing flow of air through said inlet opening to aid said brush in removing dirt from said surface, electric conductor means for supplying current from said vacuum cleaner for re charging said battery, and means for closing said rigid conduit when the latter is disconnected from said vacuum cleaner.

3. In an electric carpet sweeper, a hollow body formed with a lower elongated inlet opening adapted to be moved over a surface to be cleaned, walls forming a dirt-receiving compartment within said body and communicating with said opening, a brush rotatably mounted in said body and extending through said opening whereby rotation thereof sweeps dirt from said surface through said opening into said compartment, said compartment having an opening, closure means for the latter openable for the emptying of accumulated dirt from the compartment, an electric motor for driving said brush, a rechargeable electric battery within said body for supplying current to said motor, conduit means for connecting said compartment to an electric vacuum cleaner for removing accumulated dirt from the compartment and for inducing flow of air through said inlet opening for aiding said brush in removing dirt from said surface, and electric conductor means associated with said conduit means for supplying current from said vacuum cleaner for recharging said battery.

4. In an electric carpet sweeper, a hollow body formed with a lower elongated inlet opening adapted to be moved over a surface to be cleaned, a brush rotatably mounted in said body and extending through said opening, walls forming an elongated dirt-receiving compartment within said body parallel to said brush and having a side aperture immediately adjacent to said brush whereby rotation of the latter sweeps dirt from said surface through said Opening and said aperture into said compartment, said compartment having a bottom opening, closure means for the latter openable for the emptying of accumulated dirt from the compartment, an electric motor for driving said brush, a rechargeable electric battery within said body for supplying current to said motor, conduit means for connecting said compartment to an electric vacuum cleaner for removing accumulated dirt from the compartment and for inducing flow of air through said inlet opening and aperture for aiding said brush in removing dirt from said surface, and electric conductor means associated with said conduit means for supplying current from said vacuum cleaner for recharging said battery.

5. In an electric carpet sweeper, a hollow base structure formed with a lower elongated inlet opening adapted to be moved over a surface to be cleaned, walls forming a dirt-receiving compartment within said structure and communicating with said opening, a brush rotatably mounted in said structure and extending through said opening whereby rotation thereof sweeps dirt from said surface through said opening into said compartment, a hood mounted on said structure and enclosing a space above said structure, an electric motor in said space for driving said brush, a rechargeable electric battery in said space for supplying current to said motor, conduit means for connecting said compartment to an electric vacuum cleaner for removing accumulated dirt from the compart ment and for inducing flow of air through said inlet opening to aid said brush in removing dirt from said surface, and electric conductor means associated with said conduit means for supplying current from said vacuum cleaner for recharging said battery.

6. In an electric carpet sweeper, a hollow base structure formed with a lower elongated inlet opening adapted to be moved over a surface to be cleaned, walls forming a dirt-receiving compartment within said structure and communicating with said opening, a brush rotatably mounted in said structure and extending through said opening whereby rotation thereof sweeps dirt from said surface through said opening into said compartment, a hood mounted on said structure and enclosing a space above said structure, an electric motor in one end of said space for driving said brush, a rechargeable electric battery in the other end of said space for supplying current to said motor, conduit means extending into said space between said motor and said battery for connecting said compartment to an electric vacuum cleaner for removing accumulated dirt from the compartment and for inducing flow of air through said inlet opening to aid said brush in removing dirt from said surface, and electric conductor means associated with said conduit means for supplying current from said vacuum cleaner for recharging said battery.

7. In an electric carpet sweeper, a hollow base structure formed with a lower elongated inlet opening adapted to be moved over a surface to be cleaned, walls forming a dirt-receiving compartment within said structure and communicating with said opening, a brush rotatably mounted in said structure and extending through said opening whereby rotation thereof sweeps dirt from said surface through said opening into said compartment, a hood mounted on said structure and enclosing a space above said structure, an electric motor in said space for driving said brush, a rechargeable electric battery in said space for supplying current to said motor, said hood having an opening above said battery, a hinged cover. for said opening, conduit means for connecting said compartment to an electric vacuum cleaner for removing accumulated dirt from the compartment and for inducing flow of air through said inlet opening to aid said brush in removing dirt from said surface, and electric conductor means associated with said conduit means for supplying current from said vacuum cleaner for recharging said battery.

8. In an electric carpet sweeper, a hollow body formed with a lower elongated inlet opening adapted to be moved over a surface to be cleaned, walls forming a dirt-receiving compartment within said body and communicating with said opening, a brush rotatably mounted in said body and extending through said opening whereby rotation thereof sweeps dirt from said surface through said opening into said compartment, an electric motor for driving said brush, a rechargeable electric battery within said body for supplying current to said motor, conduit means for connecting said compartment to an electric vacuum cleaner for removing accumulated dirt from the compartment and for inducing flow of air through said inlet opening to aid said brush in removing dirt from said surface, and electric conductor means associated with said conduit means for supplying current from said vacuum cleaner to said carpet sweeper, said battery being connected to be recharged by said current, and switching means for selectively connecting said motor to be supplied with current from said electric conductor means or from said battery.

9. A device as defined in claim 8 wherein said switching means selectively disconnects said motor from both said conductor means and said battery.

References Cited by the Examiner UNITED STATES PATENTS 915,613 3/09 Leister 15-349 X 1,577,070 3/26 Orr 15352 2,230,264 2/41 Replogle 15-335 2,348,861 5/44 Smellie 15-377 X 2,867,039 1/59 Zach.

2,960,714 11/60 Senne 15349 2,980,939 4/61 Sparklin 15377 3,011,188 12/61 Menche 15- 377 X 3,039,130 6/62 Belicka et al. 15377 FOREIGN PATENTS 1,051,163 2/59 Germany. 1,052,265 3/59 Germany.

851,462 10/60 Great Britain.

WALTER A. SCHEEL, Primary Examiner.

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US3308498 *Mar 1, 1965Mar 14, 1967Gen ElectricBattery-powered clothes brush
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Classifications
U.S. Classification15/328, 15/412, 15/339, 15/327.1, 15/23, 15/349, 15/377
International ClassificationA47L11/00, A47L11/32, A47L11/202, A47L9/04
Cooperative ClassificationA47L11/4044, A47L9/0411, A47L9/0444, A47L11/32, A47L11/202, A47L11/4094, A47L11/4075, A47L11/4005, A47L11/40, A47L11/4041, A47L11/4069, A47L11/4002
European ClassificationA47L11/40B, A47L11/40J4, A47L11/40, A47L11/40F6, A47L11/40R, A47L11/40L, A47L11/40F4, A47L11/40B2, A47L11/32, A47L11/202, A47L9/04B2, A47L9/04C4
Legal Events
DateCodeEventDescription
Feb 19, 1999ASAssignment
Owner name: ELECTROLUX CORPORATION, CONNECTICUT
Free format text: RELEASE OF SECURITY INTEREST;ASSIGNORS:BANCBOSTON INVESTMENTS, INC.;WELLS FARGO & CO.;FIRST BOSTON MEZZANINE INVESTMENT PARTNERSHIP - 9;AND OTHERS;REEL/FRAME:009773/0310
Effective date: 19980831
Nov 6, 1998ASAssignment
Owner name: EL ACQUISITION CORPORATION, N/K/A ELECTROLUX CORP.
Free format text: RELEASE OF SECURITY INTEREST;ASSIGNOR:BANKBOSTON NA;REEL/FRAME:009580/0655
Effective date: 19980831
Jan 5, 1990ASAssignment
Owner name: BANCBOSTON INVESTMENTS INC.
Owner name: FIRST BOSTON MEZZANINE INVESTMENT PARTNERSHIP - 9
Owner name: FIRST BOSTON SECURITIES CORP.
Owner name: WELLS FARGO & CO.
Free format text: SECURITY INTEREST;ASSIGNOR:ELECTROLUX CORPORATION;REEL/FRAME:005206/0691
Effective date: 19891024
Owner name: WESRAY CAPITAL CORPORATION
Nov 7, 1989ASAssignment
Owner name: BANCBOSTON INVESTMENTS INC.,
Owner name: FIRST BOSTON MEZZANINE INVESTMENT PARTNERSHIP - 9
Owner name: FIRST BOSTON SECURITIES CORP.
Owner name: WELLS FARGO & CO.
Free format text: SECURITY INTEREST;ASSIGNOR:ELECTROLUX CORPORATION A CORP. OF DE.;REEL/FRAME:005195/0287
Effective date: 19891024
Owner name: WESRAY CAPITAL CORPORATION
Jun 9, 1988ASAssignment
Owner name: FIRST NATIONAL BANK OF BOSTON, THE
Free format text: SECURITY INTEREST;ASSIGNOR:EL ACQUISITION CORPORATION;REEL/FRAME:004923/0862
Effective date: 19871030