US1631549A - Vacuum cleaner - Google Patents

Description

June 7 1927. 1,631,549

F. F. PEASE VACUUM CLEANER Filed April 9, 1923 2 Sheets-Sheet 1 J1 FK/' J? 10 49 June 7 1927.

F. F. PEASE vacuum CLEANER Filed A 'ril 9. 1923 2 Sheets-Sheet 2 V a... June 1,1921.

UNlT-ED srArEs PATENT OFFICE.

run rome'r PIA, 01' EAST BBAIHTBII, MASSACHUSETTS, ABSIGHOB TO I. I.

PEABE INQ, 01' BOSTON, HASSACHUSETTB, A CORPORATION OF MASSACHUSETTS.

VACUUM CLEANER.

Application filed April 8,

The present invention relates to cleaning devlees and more (particularly to vacuum cleaners of a new an improved type.

It is desirable in connection with vacuum 6 cleaners, especially of the smaller portable type, that the dust, dirt and other solid matter may be completely removed from the air with a compact and relatively simple form of separatin device and without creat- 10 ing an undesirab e back pressure upon the air.

It is accordingly an object of the present invention to prov1de an nnproved form of cleaning apparatus which embodies certain desirable features more particularly in connection with the separation of the dust, dirt and other solids from the air.

With this and other objects in view the various features of the invention consist in certain novel features of construction, combinations and arrangements of parts hereinafter described and claimed, the advantages of which will be obvious to those skilled in the art from the follo description.

In the accompanying awings illustrating the preferred form of the invention Fig. 1 represents a side elevation partly in section of a cleaner embodying the features of the invention, and Fig. 2 represents a front so elevation partly in section of the cleaner shown in Fig. 1.

According to the present invention,the vacuum created by a revolving fan draws air and dirt throu h a nozzle contacting with the surface to cleaned. Solid particles of comparatively large size such as ins; buttons or the like which may be drawn into the nozzle are initially removed by a stationary separating device which oflr'ers no substantial impedance to the passage of 'air therethrou h. Thereafter the air with the dust and 'rt carried thereby is discharged from the fan directly against the surface of a revolving screen, the air passing through the open meshes of the screen and the solid matter, such as dust and dirt, being thrown off centrifugally and collecting in a removable receptacle. This form of apparatus provides a com act and self-contained construction for in ucing a draft of cleaning air and separating the dust, dirt and other solid matter from the air, the entire construction including the separating devices occupying substantially no 1988. Serial No. 880,707.

greater space than the usual type of cleaning apparatus without the separator bag or,

its equivalent.

As shown in the illustrated embodiment of the invention the apparatus as a whole,

A draft of air is induced upwardly in the nozzle by a series of fan blades 24 rotating .within a fan'chamber formed in the casing 10, the fan blades projecting from a hub 25 which is secured directly to the motor shaft 26, the latter extending from an electric motor of conventional type indicated at 28. The motor is rigidly supported within the casing 10 by an annular shield or eastin 30 to which the motor casing is eonnecte The apparatus as a whole may be guided through the provision of a handle 32 connecte to opposite sides ofthe casing 10 through. pivot connections 34. The air drawn upwardly through'the nozzle 22 by the fan blades 24 first passes through a coarse mesh screen 36 secured to the mner ortion of the casing 10 ahead of the fan. is screen ma be secured to the wall of the casmg in any esired manner and is in close proximity to but out of contact with the revolving fanblades. (logis'te'solid particles engaged and intercepted any, the screen 36 drop downwardly in a'collecting chamber 40 and are received in a removable drawer 42 which may be withdrawn for dumping. The air, together with the dust and dirt passing through the stationary screen 36, is directed outwardly to the .tips of the fan blades and thence longitudinally of the casing across the surface of a conical screen 44, which as indicated clearly in Fig. 1 extends longitudinally of the caslng 10. Thi coni-. cal screen at its smaller end is connected to a flange 46 forming a part. of the fan and rotating therewith and at its opposite end to an annular ring 48 connected through a second ring 49 with the tip ends of arms 52 screen the air is disc arged rearwardly through openings 54 formed in a web .56

which provides a rear wall of the casing. The dust and dirt thrown off from the separator screen into the space between the casing 10 and the outer surface of the screen is discharged into a receptacle formed in the lower portion of the apparatus and into which the revolving screen dips. The s ace separating the screen from t e wall 0 the casing is maintained clear by the revolving extensions 52 forming part of the fan.

With this construction it will be evident that the draft of air is inducedfand the dirt, dust and other solid matter completely separated from the air in a relatively efiicient manner and through the employment of ap-* paratus which occupies substantially no greater space than that occupied by the fan and drivin motor. Furthermore the provision of t e revolving screen as a means of separation permits the substantially complete removal of the dust and dirt without creating any appreciable back pressure on the air. 'T is 1s due not only to the fact that the air passes freely through the meshes of the screen but in addition to the fact that the revolving screen 'is self cleaning and'the dust and dirt are not permitted to collect nuances sential except so far as specified in the claims and may be changed or modified without be understood that departing from the broader features of the I invention.

The invention having been described, what is claimed is:

1. The combination in a vacuum cleaner of an electric motor, .a fan connected to one end of the motor, a tubular screen beyond the fan and extending about the motor, and means for rotating the screen with the fan.

2. The combination in a vacuum cleaner of a casing,ian-elect1'ic motor mounted within the casing, a fan connected to one end of the motor and rotating within the casing, and a tubular screen rotating within the casing around the motor, the space between the outer surface of the screen and the easing serving to collect dust and dirt thrown from the screen. a

3. The combination in a vacuum cleaner of a fan, a motor for driving the fan, a

conical separator screen located beyond the fan and having its smaller end adjacent the fan, and means for collecting dust and dirt thrown ofi from the screen.

4. The combination in a vacuum cleaner of a casing, a fan, a rota screen throu h which the air is directed rom the fan, t e fan having some of its blades provided with extensions arranged longitudinally -'of the screen and close to the inner wall of the casing for preventing accumulation of dust on the casing, and meansfor collecting dust and dirt thrown from the screen.

FRED FORREST PEASE.

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