US2068943A

US2068943A - Carpet sweeper dustpan

Info

Publication number: US2068943A
Application number: US758211A
Authority: US
Inventors: Callan Earl
Original assignee: Individual
Current assignee: Individual
Priority date: 1934-12-19
Filing date: 1934-12-19
Publication date: 1937-01-26
Anticipated expiration: 1954-01-26

Description

Jan. 26, 1937. E, CALLAN CARPET SWEEPER DUSTPAN Filed Dec. 19, 1954 //1/ z/f/A/ ro e iV/ez. 6774 A /V/V- Patented Jan. 26, 1937 UNITED STATES PATENT OFFICE 6 Claims.

My invention relates to a carpet sweeper dust pan and has for its principal objects, to generally improve upon the construction of the dust pans now generally used in the conventional forms of carpet sweepers, further, to construct that portion of the dust pan that is positioned adjacent the periphery of the sweeper brush or the ends of the brush bristles so that the latter cannot come in contact with the accumulations in the pans, thus preventing accidental discharge of the contents of the pans as the sweeper is moved back and forth over the iioor or surface that is being swept and further, to construct the dust pan so'as to increase the holding capacity thereof.

In practically all sweepers now on the market, the pivot points of the dust pans occupy a horizontal plane below the axis of the sweeper brush and the inner walls of the sweeper pans extend only a short distance above the pivots of the pans and it frequently happens and particularly where the pans are not frequently discharged of their contents, that the matted accumulations in the pans rise above those walls of the pans that are positioned adjacent the end of the bristles of the brush, with the result that the brush while in operation and particularly when the movement of the sweeper is reversed, the matted accumulations are engaged by and drawn out of the pans by the brush and thus discharged onto the oor or surface that is being swept.

This accidental discharge of the contents of carpet sweeper pans occurs more frequently in cold weather, due to the fact that the operation of the rotary brush over a carpet or other floor covering generates electricity which attracts and draws portions of the matted sweepings toward the brush, with the result that said accumulations are engaged and drawn by the brush bristles from the pans and discharged onto the floor.

lt is one of the prime objects of my invention, to construct the dust pans so that the matted accumulations cannot come in contact with the sweeper brush and thus accidental dumping or discharge of the sweepings from the pans while the sweeper is in operation is eiectually prevented.

With the foregoing and other objects in view my invention consists in certain novel features of construction and arrangements of parts that will be hereinafter more fully described and claimed and illustrated in the accompanying drawing in which: g

Fig. 1 is a vertical cross section taken through the center of a conventional carpet sweeper and,

showing the same equipped with dust pans of my improved construction.

Fig. 2 is a perspective view of one of the dust pans.

Fig. 3 is a perspective View of a portion of a "5l modified form of the pan.

Fig. 4 is a perspective view of a portion of a further modified form of the pan.

Referring by numerals to the accompanying drawing which illustrates a preferred embodiment l0 of my invention, I0 designates the housing of the carpet sweeper, II the sweeper brush and I2 the wheels that travel on the oor or surface that is being swept and which transmit rotary motion to the brush. l5

The pans contemplated by my invention are mounted in their usual positions between the lower portion of the brush and the lower portions of the side walls of the sweeper housing as illustrated in Fig. l. The pan is preferably con- 20 structed from sheet metal and comprises a bottom I3, a relatively narrow upstanding outer wall I4 that occupies a position just inside the lower edge of the side wall and the sweeper housing, upstanding end walls I5 and a relatively high 25 inner wall I6.

The pan is pivotally mounted on the end walls of the sweeper body in the conventional manner preferably by means of pins or screws I5a and said pins having associated therewith conven- 30 tional manually operable spring latches (not shown) for effecting tilting movement of the pans to discharge their contents.

The inner wall of the pan is curved in vertical section so as to conform to the periphery of the 35 cylindrical brush and said wall extends from the rear edge of the bottom of the pan I3 upwardly to a horizontal plane a substantial distance above the axis of the brush. Thus the carrying capacity of the pan is materially increased and 40 the upper portion of this upwardly extended wall I6 provides a guard that is effective in pre- Venting the ends of the brush bristles from coming in contact with the matted accumulation and sweepings within the pan and which action 45 would otherwise cause the brush to engage and drag the sweepings and accumulations out of the pans as the sweeper is being moved over the floor or other surface that is being swept.

In Fig. 3 I have illustrated a modified con- 50 struction wherein the upper edge of the curved inner wall I6 of the pan is provided with a series of inwardly and downwardly projecting hooks or lingers such as I1 and which latter are effective in engaging the upper portion of the matted accumulation and holding the same from rising above the upper edge of said inner wall.

In the modied construction illustrated in Fig. 4, a series of wires I8 are suitably secured to the inner wall of the pan, the latter being of normal height, which wires extend upwardly from the upward edge of said inner wall a suitable distance and the upper ends of said wires terminating in inwardly and downwardly bent hooks I9 that engage and hold the matted accumulations in the event that the same rise an appreciable distance above the upper edge of the inner wall.

Thus it will be seen that I have provided a sweeper dust pan that is relatively simple in construction, inexpensive of manufacture, capable of being used in practically all forms of carpet sweepers now on the market and which pan is constructed so as to effectively prevent the discharge of the contents of the pans as a result of the engagement of the sweeper brush with matted sweepings that accumulate in the pan.

It will be understood that minor changes in the size, form and construction of the various parts of my improved carpet sweeper dust pan may be made and substituted for those'herein shown and described without departing from the spirit of my invention, the' scope of which is set forth in the appended claims.

I claim as my invention:

l. The combination with a carpet sweeper body and the rotary brush therein, of a pan pivotally mounted in the sweeper body and a plurality of hooks extending upwardly from that wall of the pan that is positioned adjacent said brush with the ends of said hooks projecting inwardly over said pan.`

2. In a carpet sweeper, a pan comprising a bottom, end walls, an outer side wall and a relatively -high inner side wall that is curved to conform with the curvature of the periphery of the rotary brush of a carpet sweeper, the lower portion of which curved inner side wall extends inwardly over the pan and hooks projecting from the upper portion of said curved side wall, which hooks extend inwardly over the pan.

3. The combination with a carpet sweeper body and the rotary brush therein, of a pan mounted in the sweeper body, a wall of said pan being positioned adjacent the periphery of said brush and substantially parallel thereto, said wall extending inwardly over said pan, the upper edge of said wall lying in a plane higher than that of the axis of said brush, and said upper edge of said wall being formed to provide means extending inwardly and downwardly over said pan for preventing the escape of the accumulated sweepings in said pan.

4. The structure of claim 3, and said means formed on the upper edge of said wall comprisingaplurality of inwardly and downwardlydirected extensions of said'wall "5. Inja vcarpet sweeper, a pan comprising a bottom, end walls, land at least one side wall, said sidewall ,being/positioned adjacent the periphery ofarotary sweeper' ,brush and being curvedto coriform'substantially to the curvature of said brush, said vsidewall extending-inwardly over said pan bottom, the upper edge of said brushlying` in a plane higher than that ofthe axis of 'said `brush and being formed to provide means extendingzinwardly and downwardly over said'panfor preventing the escape of the accumulated sweepings in said pan.

6. The structure of claim 5, and said 'means formed on the upper edge of said side wall comprising a plurality of inwardly and downwardly directedextensions of said wall.

EARL CALLAN.