US2286421A - Suction cleaner - Google Patents

Description

June 16, 19 2- R. AHN 2,286,421

SUCTION CLEANER Filed April 25, 1939 \NVENTOR FUOOLFW MAW ATTORNEY f Application mu 25,1939; s'r aino. 269,835 20mm. "Lel -1&2

This inventionrelates to: suction cleaners, and

more particularly*-to"such cleanersiof the so-- called cylinder type.

'In' recent years there' has :been :a: .great ill-F creasein popularity of suction cleaners-of the; that is, 1 cleaners. in vwhich 5 the cloth dust bagis housed within a: cylinder which? specification claims ls left in stationary'position in a room while the;

brush or nozzle or other tool is manipulatedabout the room, it being connected to one end ofethe cylinder by as'uitable; flexible hose; The motor and fan are" located at the opposite end 'of ,the

cylinder which may, for conveniencebe called the ---rriotorend. The cylinder rests on. runners:

and is provided" with ahandles-for! moving .7 the sam'e'fromroomto roomr p The primary obj'ectxofi my invention is -to; facilitate emptying-of the dustbagi used infsuch, a' cleaner, and more particular objects aresto;

clumps or clots (sf-nap without having to dir y ones hands by handling the same.

Void-excessive escape-ofdust;.and to expel even aft r; :Qre t V and sought to .7 be defined in the v'l he specincation is' accompanied by drawing, inwhich; j ,7

Fig. 1 is a partially sectioned side elevation ofa typical cylinder type suction. cleaner; I 12 is a partially sectionedside elevation showing the same m uprightpositionduring pjig. 3 I a similar. section" showing the manner" in which the discardable paper sack is supported by the cylinder,, during".the transfer ofj dirt from Inaccordancewithfeatures and'obiectsfof the present invention, -I;provide a supply of ;discard.-

able paper "sac be" received in the shell or cylindenof; the mach'in These are preferably provided with .a stiffenin' efript'y 'th'e 'iegular porous dust bag:- of the cleaner,

the cleanr'is-firststood-upright onits motor 1 end} and the cap is thenremo'ved from the-upper I end-L The }15aper sack": is invertedrto bring its mouth against the mouth of the cloth bag; where upon the cloth-bag is lifted from the cylinder and theassenib'lw invertedrto-'bring-;the pap r I seen bottom-most; following which the. paper sacli' is' inserted-if the cylinder; The rings'of ks wliicliare' suitably dimensioned.

or reinforcingvring.atlthe mouth., To

the dust ba to the sack;. i

- illustrates thefconstruction the paper Referring-to the ,,drawing.. and more particuv called cylinder type; it comprising a cylindrical shell or hou'sing l2 carrying a porous fabric dust" bag IL, Varioustool's or "accessories such as I the brush It may be. detachably vconnected to a stiff tube or pe l8; and this" intu'r'n is connected to a fiexib le mseg zn, leading toQIl end, of cylinder 1 2 The opposite; end of the" cylinder is the motor end, and carries 'an electridm'otonand fan. T-he motor is supplied with current through a flexible cord 22 plugged into the cleaner at 2],; r and the operation of. the motor, maybe v 'conjtrolledby a conventional..switch .26. The cylinder rests on "suitableisupports'which ordinarily takef't h vform'of @skid's 'orirunners 28 A handle the cloth ba'g andpaper sacki-areclamped inpqsi- 1 'tion by means-'- of the? regular: I clamps on; the cylinder. The contents of the clothbagiare then' discharged into the paper bag by slightly shaking the cloth bag, and more importantly, by pushing the cloth bag toward and even into the paper 's'ack, for this push emptying readily transfers clots or lumps of material from the bag into the sack. It will be observed that a most important feature of this procedure is that the regular shell or cylinder of the cleaner acts as a supporting .v means for the paper sack during the transfer of dirt to the paper sack.

To the accomplishment of the foregoing, and

such other objects as will hereinafter appear, my v, invention consists in the discardable dust sack and the cylinder-- type suction cleaner elements and their relation one to the other, as herein- 3011s provided to facilitate carrying the/cleaner from room to room ."Tljie hose iisi connected .9. cap or'closure 32, and this is detachably clamped inlposition by opriate clamps. 34. The mouthof' the dust bag I! is sealed between. the capf'32and the end of ther cylinder}.Referringfto 2; it will be s eenthfat dust bag-Li! issecuredto a' metalring with" ring being outwardly" flanged and ordi narily being provided with a suitable rubber co'vering or gasket 38. ,The flange of the ring is dimensioned to fit against a mating ledge or seat 40 permanently secured to the epen end of cylin- In accordance with the present invention, '1 provide a paper sack which isjinexpensive and may be discarded with the dirt from the cleaner The paper sackniayassume a variety of forms, and one preferred form is that illustrated in Fig. 4, in which a paper sack 42 is provided with a cardboard ring I I 44 to which the paper-sackis cemented or otherwise se ured, The sack I; is dimensioned to be more partienlarly described in the received within the cylinder I2, as will be seen from inspection of Fig. 3. The ring 44 at the end of the paper sack is preferably dimensioned the same as the ring 36 at the mouth of dust bag l4. The ring 44 is thereby adapted to rest upon the seat 40, as shown in Fig. 3; thus, supporting the paper sack within the cylinder much as the cloth bag is normally supported. This is a great convenience in order to hold the paper sack during the transfer of dirt from the cloth bag into the paper sack.

The procedure followed will. be self-evident from examination of the drawing. The cleaner is first stood upright on its motor end, followin which the clamps 34 are released and. the cap or closure 32 is removed. The motor end of the cleaner is ordinarily made flat, as is indicated at 48, in order to facilitate standing the cylinder on end. In fact, this procedure as so far described has been followed heretofore, but in accordance with prior practice, the cloth dust bag I4 is removed and inverted over a newspaper, garbage pail, or the like, to emptyjits contents.

Much dust flies around during the emptying operation, and further difficulty is frequently caused by a tendency of the dirt to clot or lump up due to the fibrous nature of the nap. drawn into the cleaner from carpets.

In accordance with the present invention, the paper sack 42 is inverted over the dust bag l4 before the dust bag is removed from the cleaner.

The ring 44 of the sack is held against the ring 36 of the dust bag as the latter is removed from the cleaner. Fig. 2 illustrates the assembly of; bag and sack during their upward movement. The assembly is then inverted while holding the rings together, thus bringing the papersack to the bottom. The paper sack is then inserted in the cylinder as shown in Fig. 3, and the parts are held together by closing of the clamps 34. If desired, an extra metal ring may be provided which is to be slipped over the dust bag before closing the clamps 34, the clamps thenholding the ring, which in turn holds the bags together. No such ring is here illustrated, and it will be understood that in many cases the ring is unnecessary, for

the thickness of the cap or closure 82 at the clamp is replaced by the thickness of the ring 44 of the sack. If, however, in a special case the cap or closure 32' is of such configuration and cooperates in such fashion with the clamps that the clamps would be ineffective if used directly on the ring of the cloth bag, then a special ring may be provided resembling the peripheral portion of the the clamps 34.

- It is obvious that with the parts in the relation shown in Fig. 3 a slight shaking of bag l4 will transfer much of the dust and dirt into the sack 42. However, shaking is not to be particularly relied upon, and in itself tends to cause escape of dust. An important advantage of the present arrangement is that it makes possible what I term "push emptying" of the dust bag, for it is merely necessary to depress the bag downwardly, as is indicated in broken lines, thereby actually pushing the dirt, and particularly the large lumps or clots'of nap, into the paper sack 42.

When the baghas been satisfactorily emptied the clamps 34 are released and the sack is removed from the cylinder and discarded with its contents. The bag I4 is then replaced, following which the cap or closure 32 is applied thereover and the clamps 34 are again locked, whereupon the cleaner is ready for use.

. The paper sack 42 may be suitably creased for folding the same into fiat condition. One method offolding is shown mm. 5, and'in this figure the'folds have been'left slightly open to better indicate the manner in which the sack has been -folded. Other methods of folding may also be adopted.

It is believed that the construction and operation, as well as the many advantages of my improvement will be apparent from the foregoing detailed description thereof. :It will also be apparent that while I have shownand described my invention in a preferred form, many changes and modifications may be made without departing from the spirit of the invention defined in the following claims. v V

I claim:

l. The method of emptying the porous dust bag of a horizontal cylinder type. suction cleaner which includes standlng the cleaner upright, removing the cap at the upper end, inverting a non-porous discardable'sackto bring the mouth of the sack against the mouth of the bag, removing the bag while holding the'saclr thereagainst, inverting the bag assembly and inserting the sack down into the cylinder of the cleaner, and then discharging the contents of the bag into the sack while the sack is supported and protected by the then upright cylinder.

2. The method; of,emptying the porous cloth dust bag of a horizontal cylinder type suction cleaner which includes standing the cleaner upright on its motor end, removingthe cap at-flie upper end, inverting a non-porous .pa'per bag to bring the mouth of the paper bag against the mouth of the cloth bag, removing the, cloth bag while holding the paper bag thereagainst, inverting the bag assembly and inserting the paper bag down into the cylinder of the cleaner, clamping the'ring of the cloth bag in positionby means of v the regular clamps on the cylinder, and then tected'durihgthe transfer by means of the then upright cylinder.

1 RUDOLPH KAHN.

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