Патент USA US2133141код для вставки
VOct. 11, 1938, 2,133,141 o..Ho|_M-HANSEN ` VACUUM CLEANER Filed Deo .v 5, 1936 i ma»1d, @MAQS wlw nu`l „ÉE _S ,9,1 œ. m Patented Oct. 11, v1938 Í v2,133,141* ` I UNITED STATI-:s PATEN'r OFFICE 2,133,141 ' VACUUM CLEANER Osmund Holm-Hansen, Stratford, Conn., assigner to General Electric Compaxîy, a corporation of New York Appueetien December 5, 193s, serial No. '114.404 v 4 Claims. (Cl. 183-51) The present invention relates to vacuum cleaners. , . The object of my invention is to provide an by thebaiile from rapidly whirling air and the . dust therefore tends to settle more readily in improved construction and> arrangement for this space. The bottom'of the casing 9 is closed by a hinged plate I5„which is held against -a vacuum cleaners in which the space occupied , gasket IB on the lower edge of the'_casing by 5 by the bag is decreased. e ‘ ’ means of the spring'latch I'I. By releasing the , In the accompanying drawing, Fig. 1 is a per spective view of a vacuum cleaner embodying my invention; Fig. 2 is fa top plan view of the latch and swinging the plate I5 downward the centrifugal separator used in the cleaner; Fig. 3 by means of brackets I8. The centrifugal sepa-' 1° _ dirt in the casing S can be emptied. The cen- V trifugal separator is .supported on lthe handle is'a sectional view taken on line 3-3 of Fig. 2; rator is -particularly effective in separating -the Fig. 4 is' a sectional view taken on theline 4-4 of Fig. 3; Fig. 5 is a sectional view taken on line heavy particles of dirt from the air. 5_5 of Fig._ 1; Fig. 6 is a view showing Vthe meth od of making the bag; and Fig.A ’7 is an'enlarged air from the centrifugal separator is connected ‘ through> a co'upliug i9 to the lower end of a vac- l fragmentary sectional view taken on line 1-1 . uum cleaner bag 20. The construction of the _ _ The tubular -member II which conducts the ‘ of Fig. 6. vacuum cleaner bag isv clearly shown in Figs. 5, Referring to the drawing, I have shown my \6 and 7. It comprises two sheets of fabric'îi _ invention applied tol a vacuum cleaner having a _and 22 which are stltchedtogether around their » 20 casing I which is supported on front and rear outside edges and connected to the coupling I9 .2° '_ .supporting wheels 2. At the front of -the casing in the same manner as the conventional vacuum ' ' is a suction nozzle- 3 through which >all" is drawn cleaner bag. The- sheets >2i and 22 are stitched by means of an electric motor driven fan mount together along lines 23 extending from the upper v ' ed within the casing. The air is _discharged end oi' the bag to points near the lower end of ’ 25 through a discharge outlet 4. A handle 5 car the bag. This -stitching provides a pluralityjoi' »25 ried by a fork 4Iì pivoted on the casing is used tubular passages 24 which communicate a head- . 'to\ move the cleaner over the surface beingi -er portion 25 between the coupling I9 and the " lower ends of the passages. » In the assembly of The dust-laden air discharged i'rom the out the bag-the outside edges 2i.- and 21 are stitched cleaned. ’ > 30 let 4 is conducted by- means ot a flexible conduit ` together so that the bag-is in the form> of lan _3_0 1 to the inlet 8 ’of a centrifugal separator con annulus.- The bag> is then slipped .over the ` tained within a casing 9. The inlet 8 discharges vacuum cleaner handle and the coupling Il the air tangentially within the casing, produc- _, is connected to the member- II. The bag is _ ing a whirling annulús of air within >the .casing 35 which centrifugally separates the dust from the air. Air is discharged from the casing through supported on the handle by means of a -cord» . 28 extending between a ring 2l von the handle _35' and a tab 30 on the-upper end- of the bag. f tubular member II which it enters through -slots _With this construction- the'bag has a large III. As shown in Fig. 4 the direction' o; the ñlterlng surface, but ‘due 'to the fact that the » whirling air, indicated by arrows i2, issuch that walls, of the bag are inthe form of tubular pase’ the air must turn through an angle greater than sages the space occupied by the bag is smal1.'40 90 degrees _in order to pass through the slots The- space requirementsv Aof the cleaner are i’ur 'I|i.- Particles of‘dirt suspended in the »air en tering the slots Ill have a tendencyto be thrown outward as the-.air is making _the necessary sud den change in direction’. The'slots therefore as sist in the separation of the dust from `the air. The lower end ofthe -tubular member _'ii -is closedV by a baille plate I3 which -provides a ther decreased by -arranging thebagso that it encircles the vacuum cleaner handle. _This bag is of particular utility _in‘connection- with vacuum cleaners »having` centrifugal separators. ‘5 Centrifugal separators are primarily effective in separating the heavy particles of dust from the relatively narrow passage il between ä outer air. » Some of the'lighter _particles are carried 50 edges and side walls ofthe casing 9.' e dust carried by the Íwhirling air has a tendency to in some theformair 'discharged of'illterisfrom _therefore the separator desirable and for separating -.these lighter particles of dust from considerable portion'of the dust will fall .through the air. 'I'l‘ie- bag- illustrated -ls very satßiaetory' Athe passage I4 into the space belowthe bathe for this function since itgprovides a large fllter- I3. 'I'he space below thebaiile I3 is protected ` ing suria‘eewhich r'equire-cleaningat -in- a move toward the side walls of the casing and a , 2 2,133,141 frequent intervals and is so arranged that it to be connected to the discharge outlet of a requires very little space. vacuum cleaner. _ What I claim as new and desire to secure by ‘ 3. A vacuum cleaner bag having inner and outer fabric walls, said inner wall forming a Letters Patent of the United States„ isz 1. A> vacuum cleaner bag having inner and central passagewaykopen at both ends adapted outer annular fabric Walls, said inner wall adapt to receive a vacuum cleaner handle, means co ed to form a central passageway open at both operating with s'aid walls providing a plurality 5. ends whereby the bag may be arranged around of tubular passages therebetween, and a header a vacuum cleaner handle, an opening in one fastening the walls together for providing a plu at the lower end of said bag for discharging dust laden air to said passages. 10 f1. A vacuum cleaner bag comprising a plu rality of tubular elements arranged side by side. rality of tubular passages and a header com said elements being joined together along adja municating with said opening for discharging cent sides and closed at-one end, a header com municating with the open end of said tubular 15 10 end of said bag adapted to be connected to the discharge outlet of a vacuum cleaner, and means 15 air to said passages. 2. A vacuum cleaner bag having inner and outer walls joined at their edges and adapted to elements for discharging dust-laden air thereto, and an opening in said header adapted to be form an open ended central passageway, means cleaner'whereby a double walled bag is provided which is adapted to be wrapped around the 20 20 fastening the walls at other than-their edges for providing a plurality of tubular passages and a header, and an opening in said header adapted connected to the discharge outlet of a vacuum handle of said vacuum cleaner. OSMUN'D HOLM-HANSEN.