US2758331A

US2758331A - Suction cleaning tool with adjustable brush

Info

Publication number: US2758331A
Application number: US245299A
Authority: US
Inventors: Dale C Gerber
Original assignee: Hoover Co
Current assignee: Hoover Co
Priority date: 1951-09-06
Filing date: 1951-09-06
Publication date: 1956-08-14
Anticipated expiration: 1973-08-14

Description

Aug. 14, 1956 c, GERBER I 2,758,331

SUCTION CLEANING TOOL WITH ADJUSTABLE BRUSH Filed Sept. 6, 1951 3 Sheets-Sheet 1 Mil INVENTOR. Difle C. Gerber ATTORNEY.

4, 1956 D. c. GERBER 2,758,331

SUCTION CLEANING TOOL. WITH ADJUSTABLE BRUSH Filed Sept. 6, 1951 3 Sheets-Sheet 2 INVENTOR. Dale C. Gerber ATTORNEY.

Aug. 14, 1956 D. c. GERBER SUCTION CLEANING TOOL WITH ADJUSTABLE BRUSH Filed Sept. 6, 1951 3 Sheets-Sheet 3 United States Patent SUCTION CLEANING TOOL WITH ADJUSTABLE BRUSH Dale C. Gerber, North Canton, Ohio, assignor to The Hugger Company, North Canton, Ohio, a corporation of '0 Application September 6, 1951, Serial No. 245,299 7 Claims. (Cl. 15-399) The present invention relates to suction cleaners and more particularly to a cleaning tool adapted for use as a floor or furniture cleaning brush.

An object of the invention is to combine two cleaning nozzles into one tool. A further object is to provide a cleaning tool having double rows of bristles and a restricted nozzle mouth when cleaning one surface, and convertible to a different arrangement of bristles and an enlarged nozzle mouth to clean another type of surface. Other objects and advantages of the invention will be apparent from the following description and drawings, wherein:

Figure l is a front elevation of the cleaning tool adjusted for cleaning furniture;

Figure 2 is a bottom view, partly broken away, of Figure 1;

Figure 3 is a section on the line 3-3 of Figure 2;

Figure 4 is a bottom view showing the bristles and nozzle mouth extended for cleaning floors;

Figure 5 is a section on the line 55 of Figure 4; and

Figure 6 is an exploded view showing the structure for slidably mounting the bristles with respect to each other.

The embodiment of the invention herein disclosed comprises a body it) having an air inlet 11 to a passageway 12 communicating with a conduit 13 rotatably mounted at 14 to the body and adapted to be connected to a source of suction, for example a suction cleaner.

A pair of outer brush backs 15 are each arranged along the front and rear of the body at opposite sides of the air inlet 11 and are secured to the body by screws 16. Mounted in each brush back is a row of bristles to provide a set of spaced rows of surface engaging brushes 18 defining an opening 19 at their opposite ends.

A pair of inner brush backs 20 are each provided with a downwardly facing U-shaped recess 21 in which is mounted bristles to provide a set of brushes 22, and a marginal recess 23 is at the inner end 24 of each back 29. The inner brush backs 20 are each provided with a pair of flanges 25 which are slida-ble in a recess 26 formed between a shoulder 27 on each outer brush back 15 and the bottom surface 28 of the body 10 to movably support the inner brush backs on the outer brush backs. The inward movement of the inner brush backs 20 is limited by projections 30 abutting stops 31 on the outer brush backs 15, and the extension of the brush backs 20 is limited by the projections 30 engaging the stops 32.

In order to assemble the brush backs to the body 10 the flanges 25 of the inner brush backs 2i) are placed in the shoulders 27 on the outer brush backs 15 and the latter are then secured to the body It) by the screws 16 to complete the recesses 26 in which the flanges 25 are slidably mounted. Thereafter, a resilient furniture guard 34 is placed over the body 10 and about the outer brush backs 15 as shown in Figures 3 and 5.

When it is desired to clean surfaces Where the dirt is embedded, as for example upholstered furniture, the U- shaped brushes 22 are retracted inwardly of the outer brushes 18 to the position shown in Figure 2. In this position, the U-shaped brushes 22 cooperate to define a restricted nozzle mouth 36, and the brush backs 20 partially close the air inlet 11, and the walls of the cooperating marginal recesses 23 form a reestricted air inlet 37 to the air passageway 12. In this position of the brushes, a double row of

brushes

18 and 22 is formed forwardly and rearwardly of the restricted air inlet 37 to provide a relatively stiff set of brushes to easily remove the embedded dirt, and the reduced nozzle mouth 36 concentrates the flow of air beneath the double row of

brushes

18 and 22 to the restricted air inlet 37 to thereby aid in removing dirt from the surface being cleaned.

If a surface having non-embedded dirt, for example a floor, is to be cleaned the U-shaped brushes 22 are extended to the position shown in Figure 4. In this position the brushes 1818 and U-shaped brushes 22-22 cooperate to define a single row of brushes, except for the overlapping port-ion shown in Figure 4, and an enlarged nozzle mouth 38 communicating with the air inlet 11. In this extended arrangement of the brushes 22 the enlarged nozzle mouth 38 and unrestricted air inlet 11 clean a greater area upon movement of the tool over the surface to be cleaned.

While I have shown and described but one embodiment of my invention it is to be understood that this embodiment is to be taken as illustrative only and not in a limiting sense. I do not wish to be limited to the particular structure shown and described, but to include all equivalent variations thereof except as limited by the scope of the claims.

I claim:

1. A suction cleaning tool comprising a hollow body adapted to be connected to a source of suction, a first set of surface engaging brushes mounted on said body and forming part of a nozzle mouth, a second set of surface engaging brushes completing the nozzle mouth and mounted on said body for telescoping movement to retracted and extended positions with respect to said first set of brushes and in constant engagement with the surface to be cleaned when in said different positions, said sets of brushes arranged with respect to each other to provide a restricted and enlarged nozzle mouth when said second set of brushes is in its said retracted and extended positions.

2. A suction cleaning tool comprising a hollow body having an air inlet for dirt laden air, a first set of surface engaging brushes mounted on said body and forming part of a nozzle mouth connected to said inlet, a second set of surface engaging brushes completing the nozzle mouth and mounted on said body for telescoping movement to retracted and extended positions with respect to said first set of brushes and in constant engagement with the surface to be cleaned when in said dilferent positions, said sets of brushes arranged with respect to each other to provide a restricted and enlarged nozzle mouth when sai second set is in its said retracted and extended positions, and means to restrict said air inlet when said second set of brushes is in its said retracted position and said nozzle mouth is restricted.

3. A suction cleaning tool comprising a hollow body adapted to be connected to a source of suction, a first set of brushes mounted on said body and defining a nozzle area, a second set of brushes defining an opening therebctween and nested with respect to said first set of brushes and arranged with its surface engaging portions substantially in the plane of the surface engaging portions of said first set of brushes, and means mounting said second set of brushes for bodily movement in said plane relative to said first set of brushes to alter said nested arrangement of said brushes and said nozzle area.

.s ction cleaning-too1 comprisinga v.hollo'tv body adapted to be connected to ,a source of suction, a first set of brushes mounted on said body, a second set of brushes nested .with respectntousaid first set of brushes and arranged to definethe perimeterlof one nozzlernouth of one area, andmeans mounting said second set of, brushestor movement withrespecL-td saidfirst setof brushesto cooperatetherewithin defining the perimeter of another nozzle mouth of differential-ea. 4

5. A suction ,cleaningitool"comprising a hollow body having an inlet fontdirtladen air, a first set of surface engaging longitudinally extending brushes mountedin spaced relation on.said ,bodycand with. said inlet therebetween, a, secondiset of spaced brushes mounted on said body. for movement longitudinally of said first set of brushes and parallel to the surface engaging plane of the latter into retractedt-and extended. positions Withrespect tosaid first set 1o1brushes,.-said second set of brushes when in its retracted position cooperating with said first 7 set of brushes to provide spaced double rows of brushes for engagement ,With the surfaceto be. cleaned, and said second set of brushes when in its extended position providing an extension of said first set of spaced brushes for engagement. with the surfaceto be cleaned.

6. A suction cleaning tool comprising a hollow body having an inlet for dirt laden air,.fixed surface engaging brushes mounted on said body in spaced relation to provide open-endstherebetween; apair ofbrushesarranged" extended position providing anextension of said fixed, brushesfor engagementwith; the surface to be cleaned.

7. A surface cleaning tool as described in claim 5, and means to restrict said air inlet when said second set of brushes is in its said retracted position.

References ited file ofthis patent UNITED STATES PATENTS 1,770,749. Engberg et al July 15-, 1930 1,869,157 Lang-"run July-26,4932 2,029,668 McC-ardle Feb. 4, 1936 2,035,688 Brock Mar. 31, 1936 2,180,930 Mortensen Nov. 21,1939- '2,23 s,22,5 Ross Mar. 18, 1941 2,241,776 Dahl May 13, 1941 FQREI GN PATENTS 1,22'9' Great Britain Jan. 15, 1913