US1823071A - Vacuum cleaner brush - Google Patents

Description

. J. R, THAMM v-ACUUM CLEANER BRUSH Filed OG.. 24, .1928

Patented Sept. 15, 1931 UNITED STA TES PATENT omer.-A

GUSTA'V J. R.KTHAMM, 0F NEW YORKyN. Y.

VACUUM CLEANER :BRUSH Application led October 24, 1928. Serial No. 314,726.

The invention provides a brush attachment for vacuum cleaners,- whereby dust may be removed from lamp shades and similar articles and furnishings without any possible injury to the delicate covering and trimming, yet insuring a thorough removalv of the dust and like matter settling thereon.

'While the drawings illustrate'a preferred embodiment of the invention, itis to be understood that in adapting the means to meet specific needs and requirements, the design may be varied and such other changes in the minor details of construction may be resorted to within the scope of the invention, as claimed, without departing from the spirit thereof.

For a. full understanding of the invention and the merits thereof, reference is to be had to the following description and the drawings hereto attached, in which v Figure 1 is a central, longitudinal sectional view of a vacuum cleaningbrush em bodying the invention.

Figure 2 is a sectional detail on the line 2 2 of Figure 1 looking in the direction denoted by the arrows. Y,

Figure 3 is a detail sectional view on the line 3 3 of Figure l.

Figure 4 is a detail perspective view of the delivery end of the nozzle.

Figure 5 is an enlarged fragmentary, sectional view showing more clearly the snap j connection between the brush andthe nozzle. Figure 6 is a fragmentary sectional view of the tip of the nozzle.

Corresponding and like parts are referred.

to in thev following description and designated in the several views of the'drawings by like reference characters. A

The numeral 1 designates the flexible tube of a vacuum cleaner which is reinforced by a metal end 2. The numeral '3 denotes the collar which is adapted to be'connected to the metal end 2 by means of a. slip joint. The numeral 4 designates the nozzle which is.

connected to .the collar 3 in any preferred' way. The delivery end of the nozzle 4 is flattened as indicated at 5. The extremities of the flattened sides of the part 5 are spaced apart to form an opening, as indicated at- 6.

'side portions of the brush head 7 in A of the flattened sides 5. Openings 9 are formed in the flat sides 5 through which air and dust are drawn when the nozzleis in 'active service. rl`he openings) 4are formed by partly cutting portions from the sides 5 and pressing said portions outwardly, as indicated `at 13. These parts 13 constitute pin 12 gracingly connects the terminals tongues or deflectors to catch the dust and direct it through the openin s 9.

A brush is fitted to the flattened end 5 of the nozzle and comprises a ll-shaped head 7 to which is applied tufts 8 of bristles or other suitable brush material.y The brush head 7 is channeled, or substantially of U-'shapeopenings 10 and when sufficient force is ap plied the brush may be removed from the nozzle by the projections 11 riding out of the openings l10.

The device is used in substantially the same manner as any attachment applied to the outer end of the flexible tube of a vacuum clean-l er, the dust being dislodged by the brush and nozzle through the sideopendrawn into the ings 9, as Will be/readily The ybrush attachment pied to or detached from the nozzle, thereby admitting'o'f the latter being used in the ordinary way, the dust being drawn in through the open end 6 and sideopenings 9. When the attachment is in appreciated.

remaining uncovered to admitof dust being drawn therethrough into the nozzle. The U-shape of the brush head insures a close fit between `the side portions thereof and the nozzle, since the distance between the legs is less than the width of the nozzle and said may be readily .ap-l4 position the open end 6 is closed by the head 7 the side openings 9 legs are pressed apart when placing the attachment on the nozzle.

Having thus described the invention, I claim 1. A nozzle having a flattened end, the sides of which are spaced apart and provided with openings, a substantially U-shaped head hollow upon its inner side to snugly embrace the marginal portion of the nozzle and extend across the end and along opposite side edges thereof, and tufts of brush material fitted to and projecting laterally from the said head.

2. The combination with a nozzle having a flattened end and having portions partly eut from the fiat sides and bent outwardly to form side openings and delectors, a U-shaped head channeled upon its inner side to receive and snugly fit the marginal portion of the flattened nozzle end and extendingA across and along the side edges thereof, brush material carried by the head, and interengaging means between the parts of the nozzle and head in contact consisting of complemental openings and projections.

3. A brush attachment for vacuum cleaners comprising a substantially U-shaped head of spring material, the legs of the U beingsprung toward each other, said head being provided with bristles projecting outwardly therefrom, said head being channeled upon itsinner side and adapted to extend across tllie edge and embrace the sides of a flat nozz e. v

In testimony whereof lf affix my signature. A

. GUSTAV J. R. THAMM. [14. s]

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