US2290374A - Suction nozzle - Google Patents

Description

Fig; 4 is an enlarged sectional view f'oftlie suction nozzle; 4

Patented July 21,

. o v CTIONNO ZZLE 1;.

(als r t-meta, Riversiderflonn assignor I .to.ElectroluxporporatiomDover;Delqa corpo- I T ration of, Delaware My invention relates suction nozzles; :and 7 more particularly to suction nozzles having a plurality of=suction openings. r;

An object of my invention is to provide an improved suction nozzle with one suctionopening for eificiently removing embedded. dirt= and another suction opening which maybe used-"either ror removing loose surface inaterial or lint, 1 "threads; hairs, 'andthe like, fadhering to the" surface of the rug.

Another object-of my 'invention is to'provide a suctionnoz'zl'e with three cleaningpositions,

any one of which maybe; readily presented for cleaning a particular materialor for removing dirt or any particular character.

A further. bject of my'invention I to provide an'improvedsuctionnozzle with'meansforreadily and efliciently removing s'u r face lint, hairs,

threads; and the like.

What I consider to" be novel and 'm'y' in'vention v may be better understood by reference-m the-fol- 'lo'wing specification and appended claimswhen I .co'ns'ider'ed in connection 'wi'ththe accompanying drawings, in which' Fig. 2 is a sidexviewpartly insectionf Fig. 3 is a topiiew With'the Comb leevean a 'diiierent position m thatfoi Fi 1 1 A I war -i 'jFig. 5'1; a detailed view are portionof the suction'n'ozzle; e 1

Fig. 6 is asectionalview similar tea-portion of-' f I'Fig. 4'showing the sleeve ina'difiere'nt position;

' Fig.7 is a sectional view taken at right-angles adjacent to opening '36; ,Theendof tube 3511s spacedifr-om 'wall43fi An opening. is provided to Fig. eigand I I 8 is ajsidese'ctional view showing the suction nozzle in a difierent position from that of Fig. 7.

I Referring to the drawings, in indicates a suction nozzle generally having a body II with an enlarged suction opening l2 on one side and a smaller opening l3 at the other side. Opening 2 is bounded by a smooth lip l4 having an arched cross-section, as best shown in Fig. '7, with a rearwardly extending flange l5 located at each end of the body H. The top opening 13 is considerably smaller than the opening l2. A plate l6 covers the opening l3 and has a central passage 'l'l communicating with the opening l3. Located at one side of the passage I1 is a rod IS with alternate transverse tongues l9 and grooves 20. Rod I3 is provided with extensions 2| at each end which enter openings in -L-shaped plates 22. A substantially cylindrical sleeve 23 having an open.

:mg'. 1 is a top viewo'f myimprovd' nozzle- I f "of body II- by means of a-plate 3'! and boltsy38. An annular'ring 39 is securedto. tube 35. by means covered. A -flnger g1ip 2.5 is formedfiintegirally with the sleeve .23 and-may beutilizjedlior turningkthe sleeve overto cover; the tongues f9 :"ahd grooves 20' of rod, l8 as shown-in 3. Plate I6 is provided with tongues 26 nagrtdv sgzraaviacentlthe edge of passage "I l ontheside oppositeto rod l8. As bestindicated-in, 'Lthe top oi'tongues 26 are in substantiallythe same aplane-as the topsurfaceof plate [5 atthe opposite side of passage l'l. At opposite ends of t he'pla te -'|6,=surfaces 28 are provided and extend slightly 5 above the top of rod 18'. When -s1eeve;-23- is.in

the. open position indicated in Fig.4, a-spring 29 z engages .inia slot30, provided in one end of the sleeve 23. When sleeve.23,is movedto the closed "position as indicated in- Figs. 6 and 7,,the.spring 29 engages the free edges,adj acent-=the, opening 2110f sleeve 23.- a Spring 29 is substantially-of. U- shape withtheend 31- positioned at right angles .to the" axis :of sleeve 23. I The opposite endpf sprin'g'29 is connected to one-of the plateS 22 by means ofhollow'rivets 32 as indicated inFi gs-B and-6. The plate 16 together with therod l 8,

sleeve 23,and spring 29 are securedtobody I I by means of two bolts 33; Liocbwashers 34 arepro- "videdon bolts 33. A tube .35 ispivotallysecured inuan opening 35 midway between the two ends of peeningas indicated-vat 4'. in Fig. 8.- Ring 39 is provided with an outwardly extending flange I I which rests in an annular recess 42 provided in tube 35 at one side which may, be registered with the suction opening I2 in one position as indicated'in Fig. 2, or with the opening [3 when lo. cated in the position indicated in Fig. 8. A transverse wall 45 provided within body ll divides it into a top chamber 46 communicating with opening l3 and a bottom chamber 41 communicating with opening l2. When tube 35- is in the position indicated in Fig. 2, the opening 44 is in communication with the chamber 41 through an opening 48 provided in transverse wall 45. When tube 35 is in th position indicated in Fig. 8, opening 46 of tube 35 is in communication with chamber 46 through an opening 49 in transverse wall 45. To provide a smooth path for 110W of air from the ends of suction opening I2 to opening 48 ot'transverse wall 25, two plates 50 are provided and secured to posts 5| of body II by means of screws ing 24 at one side is :When sleeve 23 is in the position, indicated in hose or conduit connected to tube 35. For the with a minimum of effort any of the three general types of dirt-found inthe-rug, namely, embedded dirt in the nap of the rug, loose surface dirt, and threads, hairs, and the like which adrier-etc the rug su ce What-.liclaini is:

1. Ajsu'ction-nozzle "'omprisinga body member general cleaning of a rug, the nozzle is moved back and forth over the rug with the suction opening I2 in contact with the rug. As the nozzle ,IO is moved over the rug, .the suction of the vacuum cleaner produces a. large flow of g v andextending outwardly from said body beyond air throughlthe opening I! which readily removes the embedded dirt from the rug. In some cases it may be desired to use the suction nozzle,

I simplyto remove surface dirt from a part of opening i3 in contact with the'rug' surface. For

simply removing loose surface dirt, the tongues andgrooves'of rod I8 may be covered by the sleeve 23, However, if the surface dirt: consists ,in alternate positions, and extensions from said having'an elongated suction opening, spaced projections extending; outwardly from said body .=-'member along one side of said opening, a rod having"transverse'- tongues and grooves secured adjacenti t he other, side of said suction opening the projectionsat the opposite side of said openi1' 1g,"a sleeve extending over said rodand serving to cover and uncover said tongues and grooves bodyat each ;end of :said opening extending out- ;wardlyi beyond said tongues 2. A suction nozzlecomprisin g a meme her having an elongated suction opening, spaced of lint, hairs, threads, and the like which adhere to thesurface of the rug, it may beymore efflciently removed by rotating the sleeve 23 to the position to uncover the tongues I9 and grooves 20, of rod IS; The tongues l9 andgrooves or rodi8 loosen the lint, threads, and the like and permit the flow of air at a' relatively high velocity due to the, small suction opening 13 to carry the lint, eta-intothe vacuum cleaner.

When the suction opening i 3. is used foe-removing surface dirt, the smaller suction opening provides a higher velocity of air flowing through the; nozzle l0 increasing the lifting forcefor light material; The tongues 26 and grooves 21 in the plate 16 insure a flow .of air along the surface of the'r'ug "even when the sleeve 23 is in the closed position. and thesuction holds, the rug in close contact with the plate "5. Even with a high suction it is difi'i'cult to remove surface litter-without a flow of air along-the .surface being cleaned The end surfaces 28 formedinopening l2 and a smaller suction opening l3 -with 'the'rod l8 and sleeve 23, a triple action suction nozzle is provided forremoving quickly along. one side; of s'aidr opening,"arodthaving transversetonguesiand grooves -'sec' uredto' said body; at the) other 1 side. of said opening, said tongues extending-outwardly beyond the projections at the" opposite side "of, said ,opening, a,

- sleeve extending,.over said rod adapted to cover and uncoverfsaidtongues. and grooves in alternatepositions, a, springsecured to said; body and engaging said sleeve to hold "th sleeve in its alternate positionsa means tdfrotate" said sleevefromjone position tol another, and ex tensions atfeach endfof said opening extending outwardly beyondsaid-rod. Q

3. A'suctionnozzle comprising a body memher having an elongated suction opening, spaced projections extending outwardly from saidbody aIQngoneside of 'said openingi a" rod having transverse tongues. and grooves secured to 'said body at the other side 'ofsaid openihgfsaid tongues extending outwardly' be'yond -the projections at'the opposite side of 'said opening, 'a'sleeve mtatabIy mounted on said rod' and having an elongated "slot,,means to rotate said sleeve so as to said slot,'a s pring secured "to said body and eng'ageable with said slot'andsaidrecess forretaining said" sleeve? in its alternate positions,

f and extensions 1 at eachend 'of said opening extendingoutwardlybeyond saidrod. I ,ous rar ErNaR LOFGREN.

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