US2577863A - Paper dust collecting bag for vacuum cleaners - Google Patents

Description

Dec. 11, 1951 M. SOSNOWICH PAPER DUST COLLECTING BAG FOR VACUUM CLEANERS Filed Sept. 29. 1949 2 SHEETS-SHEET 1 IN VEN TOR. MICHAEL SosNowIcH Dec. 11, 1951 M. SOSNOWICH PAPER DUST COLLECTING BAG FOR VACUUM CLEANERS Filed Sept. 29, 1949 2 SHEETS-SHEET 2 INVENTOR MICHAEL SosNowIcH Patented Dec. 11, 1951 UNITED, STATES PATENT OFFICE PAPER DUSTCOLLECTING BAG FOR VACUUM CLEANERS Michael Sosnowicli, Brooklyn, N. Y

Application September 29, 1949, Serial No. 118,503 3 Claims. (01. 183-51) This invention relates to new and useful improvements in discardable bags for use on vacuum l a ers.

More particularly, the present invention proposes the construction of an improved discardable bagfor use on a vacuum cleaner, which is construet f apo ou o per b e t-ma i l, ior attachment to the discharge nozzle of an up-, right, vacuum cleaner or similar type of vacuum elfifii erhaving such a discharge nozzle, so that upon completion of a vacuuming operation the has an; b i c nnec d f m th no and thrown away when desired,

Theuse of thebag of; the present invention provides. the advantage of; cleanliness and sanitation duringuse of the vacuum cleaner and particularly during clean out of the same; of warrantin triflin i t ubsta al y li ible ri i of; then w a er es he user f-the va u mv cleaner is concerned, in view of the fact that the eteresa re ent clee w h s presentese iif lv-r e d exli e e htai er the ehs ardah ehae r in erer the ike eehs utin the as ee n ent. of the rese inve tio mayitedvhe. epclosed in a fortiiyingouter bag oi cloth or the, us fqlfprote t he h re n, contained dis ard-= ahle. as irqmheina ruptu ed dama ed rabutm ntef a r e f a a nst sharp orn rs helike ihe eht l to r t on. o the, l a is:

henew bag is c e i d. by theiiiel en eta m n. r: ulti tely collecti c am ers b i r hv a m ner s iv i a on s d a d ai Subdi i on a d m n su i on pref rab y o a. e r hehl as a a rl g t n el citss tressec io a area: when d e d d. th n sa d; ma n fluhd v sie hen s ded; w th such un..- ne o a bo h nds et clene ideblvsable. at; thet ne. i s s ad c nt tethet. eni et aid. main subdivision wh e he let erteermaheat r l ts he nd. is neh le and; elesah whereby and y on eh r tie he lesa le end: heltunne n i the id edi e t ens Qf he ain. su div s y b t e el edbr as nele tel ine r ion. i e oh h e eter a of whiohthe bag is made, In combination with h s er ns, e; P t he h e e t:

ranges that, with that end oi. he tunnel. wh ch;

ls re note from the said foldingly closable end thereof fittable snugly on and about the discharge end of the vacuum cleaners discharge nozzlefor guiding into the interior of the latter the dust and dirt laden air stream, there is a specially lo cated window, hole or opening, hereinbelow called the transfer port, between the tunnel and said main subdivision.

Anet e w b ct of t ent invention r pesee he. s of a c m n known r ty e for securing-the end of thetunnel in position on the discharge end of the discharge nozzle in a manner t 'ev it he orce o h a s a in from thevacuum cleaner from blowing the tunnel on the end of the discharge nozzle.

A feature of the invention, further, is the provision of one ormore tucks or pleatings extending along, and preferably along both sides, of the portion of the bag constituting said main subdivision; and, also, preferably along both sides of the portion of the bag constituting said tunnel.

The high-speed formation of such pleatings is also well within the capacity of an automatic paper bag making machine. The provision of said pleatings make it possible to produce a struc ture which throughout the same incorporates iriherent protective means to reduce sudden shocks from air pressure in the bag, when, even where the bag is made of very lightweight andinexpensive kinds of paper material, the bag is inflated under high pressure. Moreover, the provision of said pleatings at the tunnel facilitate ready at-. tachment of the tunnel to the discharge nozzle and by varying the number and lateral dimensions oi the last-named pleatings various models of the new bag may be easily offered to the purchasing public with each such model particularly adapted for ideal fit-on relative to conduits dif-e fering as to external diameter and contour.

Similarly, and equally readily, various models of the new bag may be offered to the purchasing public, these different models having their afore said communication ports of differing areas and perhaps also at difierent locations along and intermediate the ends of the tunnel, so that each model is particularly adapted for optimum operation in connection with vacuum cleaners of different operatin characteristics.

The invention further proposes the formation of an improved vacuum cleaner bag having a, removable metallic sleeve arranged to be friction-1 ally slipped into position over the discharge end of the discharge nozzle of the vacuum cleaner in a manner to connect the bag with the cleaner.

S ill. ahe heri ehieet Qf: the present in ention proposes a novel means for connecting the sleeve to the bag so that the sleeve can be conveniently disconnected from the bag leaving the bag and contents intact to be disposed of and permitting the sleeve to be connected with a fresh bag which is to be mounted on the vacuum cleaner.

It is a further object of the present invention to construct an improved discardable vacuum cleaner bag which is simple and durable, which is effective in use and which can be manufactured and sold at a reasonable cost.

For further comprehension of the invention, and of the object and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set. forth.

In the accompanying drawings forming a material part of this disclosure:

Fig. 1 is a bottom perspective view showing a now favored embodiment of the new discardable bag, distended as it would be while in use in a vacuum cleaner.

Fig. 2 is an enlarged longitudinal central sectional view taken on the line 2--2 of Fig. 1.

Fig. 3 is a further enlarged fragmentary detailed sectional view taken on the line 3-3 of Fig. 2.

Fig. 4 shows said bag when collapsed and in spread flat condition, as when in a package with a plurality of similar bags while in storage awaiting use.

' Fig. 5 is a perspective view of the discardable vacuum bag constructed in accordance with a modification of the present invention.

Fig. 6 is an enlarged partial longitudinal sectional view taken on the line 6-6 of Fig. 5.

Fig. 7 is a sectional view taken on the line 1-1 of Fig. 6.

Fig. 8 is a perspective view of the apertured portion of the bag, per se, as used in the form of the invention shown in Figs. 5 to 7. l The discardable vacuum cleaner bag, according to the form of the invention shown in Figs. 1 to 4, includes a bag I0. The bag I0 is capable of being readily fabricated in an automatic paper making machine of standard type as already stated and comprises merely two substantially rectangular blanks of paper or the like, the larger blank for beingfolded and pasted to constitute a main subdivision II of the bag l0, and the smaller blank for being folded and pasted to constitute a minor subdivision or tunnel 2.

The pasting of larger blank is effected along overlapped marginal portions of its two sides, as indicated at M in Figs. 2 and 3; and also at one end of the structure made from the larger blank, at the flap I5.

Along the entirety of the length of each of the opposite sides of the main subdivision II, the same is formed to include a fairly deep pleat l6; and the tunnel I2 is also pleated along the entirety of the length of each of its opposite sides. The tunnel is established by pasting together overlapped marginal side portions ll of the blank from which it is folded, as indicated at Ill.

The aforesaid communication port, this'designated I9, is, as clearly shown in Figs. 2 and 3, provided by two like and matchingly arranged holes cut in the two blanks. The port I8 is established when the main subdivision II and the tunnel I2 are pasted together perimetrally of the 'holes. While this coat of paste preferably extends to the one end of the tunnel and hence almost to the end of the adjacent wall of the main-subdivision I I, the other end of this paste application is preferably spaced a distance from the other end of the tunnel, for instance, continued down as far as the location indicated at 20 in Fig. 2, say to about one inch from the adjacent end of the port I9. Said coat of paste, however, is preferably coextensive in width with the width of the wall of the tunnel placed against the subdivision The tunnel I2 is of an internal diameter to have its free end slipped over the discharge end of the discharge nozzle of a conventional upright vacuum cleaner or other similar type of vacuum cleaner having such a discharge nozzle. The free end of the tunnel I2 is to be clamped to the discharge nozzle by any suitable ring-type clamp, not shown, so that the dust laden air will pass from the discharge nozzle of the vacuum cleaner, through the tunnel l2 and the port I! and into the main subdivision II of the bag Ill. The dust will be trapped within the bag I0 and the air will pass out through the pores of the porous material from which the bag In is formed.

It is of course understood that the end of the tunnel I2 and the adjacent end of the main subdivision II of the bag I0, opposite the flap I5, may be permanently closed at the time the bag is fabricated by the formation of a flap 2|, or the flap may be held closed by any suitable clips of metal so that the bag may be opened after removal from the vacuum cleaner for inspection of the contents.

In the modification of the invention shown in Figs. 5 to 8, the discardable bag I0 is comprised of a main subdivision I and a minor subdivision or tunnel I2. The tunnel I2 is constructed of metal and is removably attached to the main subdivision II to be removable therefrom so that the main subdivision I I, containing the dirt, can be discarded while the tunnel I2 is attached to another main subdivision.

The tunnel I2 is comprised of an inner sleeve 30 and an outer sleeve 3|. Each of the sleeves 30 and 3| is formed at its inner end with a projecting flange 32. Secured to the adjacent faces of the flanges 32 there are resilient pads 33 of rubber or similar material. I

The outer sleeve 3| has its inner end undercut and the free end of the inner sleeve is provided with threads so that the free end of the inner sleeve 30 can be screwed into the undercut portion of the outer sleeve for removably connecting the sleeves together. The relationship between the sleeves 30 and 3| is such that the inner peripheries of the sleeves will be flush when connected. This is important in that the interior of the connected sleeves 30 and 3| provide an unobstructed passage for the dirt laden air from the discharge nozzle of the vacuum cleaner to the interior of the main subdivision ll of the bag It. The outer sleeve 3| should have an internal diameter corresponding to the outside diameter of the discharge nozzle of the vacuum cleaner upon which the bag I0 is to be used so that the tunnel I2 will frictionally retain its position upon the discharge nozzle of the vacuum cleaner, notwithstanding that air under pressure is being discharged into the bag Ill. I

One side of the main subdivision is formed with a hole 34 having a diameter corresponding to the outside diameter of the inner sleeve .32. Radiating from the hole 34 there is a plurality of slits 35, see especially Figs. 7 and 8. The slits have a length just very slightly less than the width of the flanges 32 of the sleeves 30 and 3|, as shown in Figs. 6 and'l. The slits 33 permit the size of the hole 34 to be expanded so that the flanges 32 of the inner sleeve 30 can be slipped into the interior of the bag with the free end of the inner sleeve 30 projecting from the bag to be connected with the outer sleeve 3|. The material of the main subdivision ll of the bag, surrounding the hole 34, will then be clamped between the adjacent faces of the resilient pads 33 to retain the slits 35 closed and the main subdivision ll' securely connected to the tunnel [2. When the main subdivision l l of the bag I 0' is to be discarded, following use, the sleeves 30 and 3| are slightly separated so that the flange 32 of the inner sleeve 30 can be pulled from the interior of the main subdivision l I so that the bag can be rolled up and discarded leaving the nozzle l2 intact to be used with another main subdivision II.

In other respects this form of the invention is similar to the previous form and like reference numerals identify like parts in each of the several views.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent, is:

1. A discardable bag for use on a vacuum cleaner comprising a main subdivision formed of porous material and a tunnel attached to said main subdivision for attachment to the discharge nozzle of the vacuum cleaner, said main subdivision being formed with a hole having slits radiating therefrom, said tunnel comprising an inner sleeve having an end portion of a diameter equal to that of said hole and projected through said hole, an outer sleeve threadedly engaged upon the extended end portion of said inner sleeve, and flanges radiating from the inner ends of said sleeves and engaging the inner and outer faces of the material of the has about said hole.

2. A discardable bag for use on a vacuum cleaner comprising a main subdivision formed of porous material, and a tunnel attached to said main subdivision for attachment to the discharge nozzle of the vacuum cleaner, said main subdivision being formed with a hole having slits radiating therefrom, said tunnel comprising an inner sleeve having an end portion of a diameter equal to that of said hole and projected through said hole, an outer sleeve threadedly engaged upon the extended end portion of said inner sleeve, and flanges radiating from the inner ends of said sleeves and engaging the inner and outer faces of the material of the bag about said hole, said flanges having a width slightly greater than the length of said slits.

3. A discardable bag for use on a vacuum cleaner comprising a main subdivision formed of porous material, and a tunnel attached to said main subdivision for attachment to the discharge nozzle of the vacuum cleaner, said main subdivision being formed With a hole having slits radiating therefrom, said tunnel comprising an inner sleeve having an end portion of a diameter equal to that of said hole and projected through said hole, an outer sleeve threadedly engaged upon the extendedend portion of said inner sleeve, and flanges radiating from the inner ends of said sleeves and engaging the inner and outer faces of the material of the bag about said hole, and resilient pads mounted on the adjacent faces of said flanges and engaging the inner and outer faces of the material of said main subdivision surrounding said hole.

MICHAEL SOSNOWICH.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Morrison June 30, 1942

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