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Publication numberUS3775800 A
Publication typeGrant
Publication dateDec 4, 1973
Filing dateDec 20, 1971
Priority dateDec 20, 1971
Publication numberUS 3775800 A, US 3775800A, US-A-3775800, US3775800 A, US3775800A
InventorsVeneziani M
Original AssigneeVeneziani M
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Rotary brush
US 3775800 A
Abstract
Portable electromechanical household tool appliance consisting of a box-like casing made of a number of parts of plastics enclosing an electric motor. A driving shaft of the motor emerges from the box-like casing. A plurality of working tools or cleaning members can be removably secured to the device, the cleaning members including a first interchangeable cleaning member provided with brush means and removably mounted on the shaft and a second interchangeable cleaning member provided with a peripheral row of bristles and removably mounted on the casing of the device.
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Description  (OCR text may contain errors)

United States Patent 11 1 Veneziani ROTARY BRUSH [76] Inventor: Marco Antonio Veneziani, Via Trezzo dAdda 3, Milan, Italy 22 Filed: Dec. 20, 1971 [21] Appl. No.: 209,770

[52] US. Cl. 15/28 [51] 1m.c1 ..A4 b 13 02 [58] Field of Search 15 4, 28, 29, 49 R,

[56] References Cited UNITED STATES PATENTS 1,093,820 4 1914 Beach 15 344 1,433,021 10 1922 Michael... 15/28 x 1,464,336 8 1923 P0lan sky..... 15 344'ux 1,58l-=,85-5 4 1926 May 15 28 x 2,178,943 11 1939 Terauchi. 15 29 2,644,189 7/1953 Calvin 15 28 x [111 3,775,800 Dec. 4, 1973 Libecap l5/28 X Kowalesk i 15/28 Primary Examiner-Edward L. Roberts AttorneyGuido Modiano et al.

57 ABSTRACT Portable electromechanical household tool appliance consisting of a box-like casing made of a number of parts of plastics enclosing an electric motor. A driving shaft of the motor emerges from the box-like casing. A plurality of working tools or cleaning members can be removably secured to the device, the cleaning members including a first interchangeable cleaning member provided with brush means and removably mounted on the shaft and a second interchangeable cleaning member provided with a peripheral row of bristles and removably mounted on the casing of the device. I

2 Claims, 8 Drawing Figures PATENTEU DEC 4 I975 11,775,800 SHEET 10F .22

INVENTOR Marco Antonio VENEZIANI BY Q i f v Agen ROTARY BRUSH BACKGROUND OF THE INVENTION The present invention relates to an electromechanical device particularly useful as a household electrical applicance for cleaning windows, furniture, shutters;

SUMMARY OF THE INVENTION The object of the present invention is to effectively resolve the problem of cleaning smooth surfaces such as windows, mirrors, furniture, tiles and the like by providing a household electrical applicance of practical use and reliable operation, and able to reach parts of the object to be cleaned which are not easily accessible.

A further object of the present invention is that said apparatus may also be employed for gardening operations such as grass or hedge cutting, or finishing operations on grass lawns along edges and comers which are not easily accessible to other cutting means.

A further object of the present invention is that said electromechanical device may be employed as a fan for environmental aeration and freshening.

A further object of the present invention is that said electromechanical device may be advantageously employed for dusting and washing operations on shutters and the like.

These and further objects which will be better evident hereinafter are attained by the electromechanical device according to the invention comprising a box-like casing in a number of parts, an electric motor disposed within said box-like casing, means for fixing'together the pieces forming said box-like casing, a driving shaft rigid with said motor and emerging from said box-like casing, a plurality of working tools of rotary movement which can be alternatively connected to said driving shaft, means for removably fixing each of said plurality of working tools on to said driving shaft, and gripping and/or resting means formed in said box-like casing for supporting and manipulating said electromechanical device.

BRIEF DESCRIPTION OF THE DRAWINGS Further characteristics and advantages of the invention will be more evident from the detailed description given hereinafter of some preferred but not exclusive embodiments given by way of example with reference to the accompanying drawings in which:

FIG. 1 is a perspective exploded view of the device according to the invention with cleaning members comprising brushes;

FIG. la and lb show further cleaning members before mounting on the device;

FIG. 2 is a modification of the device according to the invention;

FIG. 3 is a cross-sectional view through the centre line of the brush mounted on the device of FIG. 2;

FIG. 4 is a modification of the device shown in FIG.

FIG. 5 is a device employed as a cutting device; and

FIG. 6 shows the device employed as a fan.

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a box-like casing or housing 1 of pistol form which houses an electric motor, not shown in the figure. The box-like casing 1 is formed in two pieces, i.e., a central drum 2 which extends downwardsin the form of a grip or handle 3 and a front cover 4 which extends downwards on to the grip in the form of an appendix 5. The cover 4 is retained against the central portion 2 by means of screws which engage with the motor body. On the appendix 5 of the cover 4 there is an aperture 7 for housing a pushbutton 8 which operates the switch for starting and stopping the motor. The driving shaft 9 emerges by way of the cover 4 through its externally threaded hollow hub 4a, for removable engagement with a working tool. Between the tool and driving shaft 9 a tool support plate 10 is provided for fixing to the free end of the driving shaft 9 by bush and nut or screw coupling. On the body of the tool support plate 10 two or more plugs 10a and 10b may be provided for snap engagement with correspondingly shaped bores (not shown) provided in one of the brushes 12a, 12b, 12c. Between the plate 10 and cover 4 a bristled cap. generally indicatedat 11 may be mounted provided with a peripheral border 13 carrying a row of peripheral bristles (not shown in FIG. 1) fixed in holes 14 formed along its peripheral border 13. The bristled cap 11 is fixed to the cover 4 by screwing it by means of the central threaded bore on to the hollow hub 4a and serves to give good stability to'the apparatus as it ensures a large support area and prevents spraying of liquid by the brushes 12a, 12b and when they carry outwashing operations. Each brush 12a, 12b and 12c is formed of a number of bristle groups, 15, 16 and 17 which may be disposed in a spiral manner so as to give rise to a suction action in addition to a brushing action. The brush 120 is particularly suitable for massage. The brushes 12a, 12b and 12 each define a first cleaning member, while the cap 11 provided with the bristles defines a second cleaning member.

Advantageously the grip 3 of the box-like casing 1 is provided of tubular form for insertion of elongation members 6 so as to be able to move the device 1 to difficulty accessible points.

In FIG. 2 the bristled cap member'll is replaced by a bristled member of substantially rectangular form 19 in which are mounted two brushes 13a and 13b entirely similar to those shown in FIG. 1 in the assembled position.

The bristled member 19 has therefore portions converging into right angles, thereby to allow the bristles of said second cleaning member to reach and clean the corners of the window-panels.

FIG. 3 shows a cross-section through the device of FIG. 2. It can be seen that by way of the bristled member 19, the shaft 9 drives a pinion 20 which meshes with the gears 13c and 13d rigid with their respective brushes. Consequently during operation the brushes 13a and 13b are driven in rotation directions and a good cleaning effect is obtained. Because of the presence of the bristles along the periphery of the member 19, as in the case of the member 11 of FIG. 1, a good finish and stability are also obtained.

FIG. 4 is similar to FIGS. 1 and 2 with the exception that the protection member 21 is of elliptical configuration and three rotating brushes are provided within it instead of two. This multiple tool with three br'u'shes is particularly suitable for cleaning large dimensional surfaces.

FIG. 5 shows that the device described may be adapted for being used as a mower-cutter device, comprising a blade 22 mounted directly on the driving shaft and a protective member 23 fixed directly on to said box-like casing l and of substantially truncated conical form.

Finally FIG. 6 shows the device adapted for being used as a fan 24 with a protective mask 25 consisting of support members 18 fixed to the box-like casing l and snap connected to the peripheral member 19. The lower end of the grip 3 is connected to a knuckle 27 rigid with a base 28 by way of a dovetail 26.

Operation of the device according to the invention is as follows. Tools suitable for the type of operation to be carried out are mounted together with their accessories.

The second cleaning member 11 or 19 is mounted first by screwing it on to the hub 4a. The first cleaning member is then directly fixed on to the free end of the driving shaft 9 emerging from the threaded hub 4a. The grip may be fixed to a base, held in the hand or provided with an extension according to requirements.

The working motion starts after pushing the switch 8, having previously connected the motor electrically to the mains by means of a normal plug.

As it appears from the foregoing description, the hub 4a is rigid with the cover member 4.

Advantageously these members, as well as the drum member of the casing 1 and the discs 10, 12a, 12b, 12c and the cap 11 are made of plastics material. In the preferred embodiment the tool support plate has an externally threaded hollow hub member 10c in the cavity of which a conical-longitudinally partially split clamping bush of known type is arranged to cooperate with a tightening screw for clamping therethrough the plate i Advantageously the right hand or left hand screw threads are selected depending on the direction of rotation of the shaft 9 in order to obtain a tightening of the screw engagements during operation.

The invention so conceived is susceptible to numerous modifications all falling within the scope of the inventive idea.

Various other types of rotating tools may be mounted on the driving shaft 9 without leaving the scope of the present invention.

I claim:

1. A cleaning device in form of a brush, particularly for cleaning window-panes, comprising a housing having a handle extending therefrom;

a motor mounted within said housing and having a shaft extending out of said housing;

at least a first cleaning member including a disc member and brush means mounted thereon and extending substantially perpendicular thereto;

a second cleaning member having a peripheral border provided with a row of bristles arranged substantially surrounding said first cleaning member; and

means for removably mounting said first cleaning member on said shaft for rotation therewith and said second cleaning member on said housing for being rigid therewith, said means including an externally threaded hub rigid with said housing and surrounding said shaft for a portion of its length, thereby to have the end portion of said shaft emerging from said externally threaded hub;

a central threaded bore in said second cleaning member for screwing said second cleaning member on said externally threaded hub;

and means for removably securing said first cleaning member on said end of said shaft emerging from said externally threaded hub.

2. A cleaning device as claimed in claim 1, wherein said peripheral border of said second cleaning member provided with said row of bristles has portions converging into substantially right angles, thereby to allow the bristles of said second cleaning member to reach and clean the corners of the window-panes.

Patent No. finn 1 I Datefi "fipnambpr A. 197

CERTIFICATE QE,;(1ORRECT'IO 'Inventoflg) Marco Ar'lt onio V ENE ZIANIv It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below: In the title page"; after fp he line idefi'ti fy ing the applicatiq'n number, in'se rt the- -iollowilrigr .'/30/ ,Foreigh ApplicationPriofity pate McCOY M. GIBSON JR,

Attesuins" Officer- 'f I Pm QFQ Q ent 5

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1093820 *Jun 9, 1913Apr 21, 1914Wisconsin Electric CompanyVacuum-cleaner.
US1433021 *Dec 16, 1921Oct 24, 1922Michael Robert EVacuum duster
US1464336 *Feb 27, 1922Aug 7, 1923Arpad PolanskyShoe-polishing set
US1581855 *May 21, 1925Apr 20, 1926Ernest MaySurface-rubbing machine
US2178943 *Aug 23, 1938Nov 7, 1939Seichi TerauchiRotary brush
US2644189 *Apr 12, 1950Jul 7, 1953Calvin Elizabeth CHand-supported suction brush for clothes
US2753576 *Aug 17, 1953Jul 10, 1956Roy Libecap ClydeMeat block cleaner
US2967314 *Jan 31, 1957Jan 10, 1961Electrolux CorpCombination hand power tool and floor polisher
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4045836 *Jan 29, 1976Sep 6, 1977Glenn Robert MAutomobile polishing apparatus
US4574722 *Apr 5, 1985Mar 11, 1986Mitsui Engineering & Shipbuilding Co., Ltd.Underwater cleaning apparatus
US5070567 *Feb 19, 1991Dec 10, 1991Neta HollandElectrically-driven brush
US5471695 *Aug 31, 1994Dec 5, 1995Aiyar; SanjayMotorized brush
US5500972 *Nov 7, 1994Mar 26, 1996Foster; David C.Rotating back scrubber
US6000083 *Sep 30, 1998Dec 14, 1999Dr. Johns Products, Ltd.Electric toothbrush
US6189693 *Jan 25, 1999Feb 20, 2001Dr. Johns Products, Ltd.Electric toothbrush
US6360395Jan 22, 2001Mar 26, 2002The Procter & Gamble CompanyElectric toothbrush
US6371294Nov 9, 2000Apr 16, 2002The Procter & Gamble CompanyElectric toothbrush
US6564940May 21, 2001May 20, 2003The Procter & Gamble CompanyElectric toothbrush
US6799346Jan 4, 2002Oct 5, 2004Atico International Usa, Inc.Toothbrush with oppositely reciprocating brush heads
US6932216May 21, 2001Aug 23, 2005The Procter & Gamble CompanyElectric toothbrush
US7234187Aug 8, 2005Jun 26, 2007Church & Dwight Co., Inc.Electric toothbrush
US7356866Dec 9, 2003Apr 15, 2008Church & Dwight Co., Inc.Modular electric toothbrushes
US7748070Aug 14, 2008Jul 6, 2010The Procter & Gamble CompanyElectric toothbrush comprising an electrically powered element
US7845039May 17, 2004Dec 7, 2010The Procter & Gamble CompanyToothbrush with severable electrical connections
US8185992Feb 5, 2007May 29, 2012Qxr Cleaning Products GmbhHand-guided device and tool connectable thereto
CN101212925BFeb 5, 2007Dec 22, 2010古德威伯瑞森公司Hand-operated device and tools which can be connected to it
DE102009004519A1 *Jan 9, 2009Jul 15, 2010Budke, GudulaPaved surface cleaning device, has brush that is movable by drive unit i.e. electric motor, and front carriage provided with wheel, and pivotably fastened to device about horizontal rotational axis
DE102009004520A1 *Jan 9, 2009Jul 15, 2010Budke, GudulaBrush for cleaning paved surfaces, is provided with brush head holder, where connections are provided for detachable fixing of brush heads with bristles
WO2005063143A1 *Dec 10, 2003Jul 14, 2005Procter & GambleModular electric toothbrushes
WO2007087666A1Feb 5, 2007Aug 9, 2007Qxr Cleaning Products GmbhHand-operated device and tools which can be connected to it
Classifications
U.S. Classification15/28
International ClassificationA47L1/00, A47L23/00, A47L11/00, A47L1/05, A01D34/00, A01D34/84, A47L23/06, A47L11/38, A01G3/00, A01G3/053
Cooperative ClassificationA01G3/0535, A47L11/4069, A01D34/84, A47L11/4075, A47L1/05, A47L23/06, A47L11/38, A47L11/4038
European ClassificationA47L11/40L, A47L11/40F2, A47L11/40J4, A01D34/84, A47L23/06, A47L11/38, A47L1/05, A01G3/053B