US2017893A

US2017893A - Suction cleaner

Info

Publication number: US2017893A
Application number: US702281A
Authority: US
Inventors: Christian G Boettler
Original assignee: Hoover Co
Current assignee: Hoover Co
Priority date: 1933-12-14
Filing date: 1933-12-14
Publication date: 1935-10-22
Anticipated expiration: 1952-10-22

Description

Oct. 22, 1935. C, G BQE'TTLER. I 2,017,893

SUCTION CLEANER Filed Dec. 14, 1935 IIIIIIIIIIIII/ gogogogogogogogogo 3080 l m' m' OOOOOOOOOOOOOOOO O O O O O O O O O O O O O O O O O INVENTOR ATTORNEY Patented Oct.- 22, 1935 I SUCTION CLEANER Christian G. Boettler, North Canton, Ohio, as

signor to The Hoover Company, North Canton, Ohio, a corporation of Ohio Application December 14, 1933, Serial No. 702,281

1 Claim.

The present invention relates to suction cleaners and particularly to new and novel improvements in suction cleaner nozzles. cally the invention comprises a new lip which forms a part of an agitator-containing suction cleaner nozzle.

It is an object of the invention to provide a new and improved suction cleaner. It is a further object of the invention to provide a new and improved suction cleaner nozzle. It is an additional object of the invention to provide a new and improved nozzle lip in a suction cleaner nozzle. A still further object is to provide a nozzle lip which permits the passage of cleaning air therethru in addition to its function of contacting the surface covering. Still another object is the provision of a nozzle lip which restricts the nozzle mouth width and also permits the passage of air through its own body. These and other objects will appear upon reading the following specification and claim and upon considering in connection therewith the attached drawing to which they relate.

In the drawing in which a preferred embodiment of the invention is disclosed:

Figure 1 is a side elevation, partly in section, of a modern suction cleaner embodying the present invention;

Figure 2 is a partial bottom view of the machine shown in Figure 1 with certain parts broken away;

Figure 3 is a partial bottom view of a second embodiment of theinvention;

Figure 4 is a partial side view of the invention showing the front supporting means for the lip in the nozzle.

A modern suction cleaner is shown in the drawing and comprises the usual nozzle I, fan chamber 2, exhaust outlet 3, air passageway 4 between the nozzle and the fan chamber 2, and a motor casing 5. A suitable unshown driving motor is positioned within the casing 5, the shaft 6 of which extends downwardly through the fan casing 2 where the suction-creating fan I is mounted thereon. The lower end of the shaft is provided with a pulley 8 which functions in the operation of the machine to transmit power thru the belt 9 to the rotary agitator I0 within the nozzle I. The agitator is of a well-known design, including rigid beater elements and fiexiblebrush elements, and is adapted to contact the surface-covering between the front and rear nozzle lips I I and I 2. As in the usual suction cleaner the machine is movably supported upon front and rear supporting wheels, indicated by the reference characters I3 and 14, there being provided adjusting means I5 for the More specifirear wheels by the use of which the nozzle can be raised or lowered relative to the surface covering undergoing cleaning in order that cleaning air entering the nozzle and the agitator therein may function most effectively upon the covering. The usual dust bag, indicated by the reference character I6, is removably attached to the exhaust outlet 3, being adapted to filter the dirt-laden air exhausted therethrough, and the usual pivoted handle II is provided through which the opera- 10 tor may exert a propelling force in the operation of the cleaner.

The general arrangement of this machine is well known and no claim of invention is made relative thereto. The invention towards which 16 this application is directed specifically is to the construction of the cleaner nozzle and more specifically to the construction of the nozzle lip I2 thereof.

. In the present disclosure the rear lip I2 of the 20 cleaner nozzle is disclosed as being formed integrally upon the removable bottom plate I8 of the air passageway. This plate is normally held in place upon the cleaner, it being provided with lugs I9, I9 at its forward end which overlie the rear- 25 ward extremities of horizontally extending shelf members '20, 20 at the bottom and ends of the nozzle. The rear end of the -plate is secured through being provided with a rearwardly extending lug 2| which seats under a latch member 22 which is manually operable in a common and well known manner. Bottom plate I8 is also provided with a seal 23 which extends around its edge in line contact with the lower edge of the side walls of the passageway 4 to prevent the escape and leakage of air between the side walls and the bottom plate.

The rear nozzle lip I2, as shown in Figures 1 and- 2, is formed in a definite manner for a specific purpose. While the usual nozzle lip is of the type of the front nozzle lip, indicated by the reference character II, the rear nozzle lip differs therefrom in that it is provided with openings 24 across its length, the lip being in substantially the same plane on both sides thereof. These openings permit the direct passage of cleaning air through the nozzle lip and into the nozzle to join the air which has entered between the nozzle lip and is passing through the passageway 4 toward the suction-creating fan. By providing the openings 24 it is possible to extend the nozzle lip I2 inwardly to a position much closer to the agitator than would be possible otherwise without materially reducing the flow of air into I the nozzle, additionally accomplishing the function of preventing undue carpet contact with the agitator.

' Referring now to Figure 3, in particular, a second embodiment of the invention is disclosed in which the nozzle lip I2 is provided with a multiplicity of relatively small apertures or openings 25 which have replaced the relatively large openings 24 of the first embodiment. This construction is identical in functional operation with the first embodiment.

While in the present disclosure the nozzle lip I 2 has been shown formed integrally upon the removable bottom plate I8, it is to be understood that it is within the scope of the invention to mount the lip in any suitable manner, and

that the precise means may be varied without altering functionally the operation of the machine.

I claim:

In a suction cleaner, suction-creating means, a nozzle interiorly connected to said means and formed with a mouth, surface-contacting lips defining said month, one of said lips including a surface-contacting portion and a second surfacecontacting portion spaced therefrom in the direction of the o-ther'nozzle lip, said lip being 10 formed to admit air-to said nozzle between said portions, and a driven surface-contacting agitator positioned in said mouth and cooperating with said second surface-contacting portion in holding a surface covering undergoing cleaning 15 from said mouth.

CHRISTIAN G. BOETTLER.