Oct. 15, 1946. C, H, TAYLOR 2,409,230 SUCTION CLEANING APPARATUS Filed May 3, 1944 20 A mvENToR l ì CHARLESHTAYLOR. ATTORNEY Patented Oct. 15, 1946 2,409,230 UNITED STATES PATENT GFFICVE 2,409,230 SUC'I‘ION CLEANING APPARATUS Charles H. Taylor, Springfield, Mass., assignor to Westinghouse Electric Corporation, East Pitts burgh, Pa., a corporation of Pennsylvania Application May 3, 1944, Serial No. 533,866 1 5 Claims. (Cl. 18S-_37) 2 My invention relates to a suction cleaner and more particularly to a suction cleaner which is and 40 are bent or offset to form a pair of chan nels therebetween for accommodating the inner provided with a filter for separating coarse par peripheral portions of a pair of fixed annular bailles 44. This produces an overlapping of the outer peripheries of the discs 36, 38 and 40 and the inner peripheries of the ñXed bailies 44 to prevent the passage of coarse particles of dirt to ticles of‘dirt from the stream of air, and a re movable receptacle disposed below said filter for receiving said particles. One object of my invention is to produce an improved suction cleaner of the type set forth. the fan chamber 3I, without preventing free A further object of my invention is to produce movement of the discs 36, 38 and 4I! relative to a suction cleaner in which the clogging of the 10 the fixed baiiles 44. The disc 46 is mounted on a. ñlter is considerably reduced, thus minimizing reduced portion at the inner end of a sleeve 45 the necessity of cleaning or replacement of the and is held in position by stop collars or the like screen. 46. The sleeve 45 is carried by a shaft 48 which These and other objects are effected by my in is eccentrically carried by or connected to the vention as will be apparent from the following 15 shaft I9. The shaft 48 is provided with front and description and claims taken in connection with rear balance weights 49. The front or outer pe the accompanying drawing, forming a part of this application, in which: riphery of the tubular ñlter 34 is clamped be tween two collars 50 mounted on a reduced por tion at the outer end of the sleeve 45 and is re» Fig. 1 is a vertical sectional view of a suction cleaner embodying my invention; 20 tained in position by a stop collar 52. Below and Fig. 2 is a sectional view taken on the line II-II of Fig. 1; Fig. 3 is an enlarged fragmentary sectional on the high pressure side of the filter 34 is a re movable receptacle 53 for receiving coarse par ticles of dirt separated from the air stream by View on lines lII-III of Fig. 1; the screen 34. In order to prevent rotation of Figs. 4 to '7, inclusive, are diagrammatic views 25 the ñlter 34 with the shaft 48, I connect the discs illustrating the motion of the dirt-separating 36, 38 and 4!! by means of tension springs tothe screen forming the subject matter of my inven partition 22. In the preferred form illustrated, tion; and two diametrically-opposed spring assemblies 54 Fig. 8 is a fragmentary, vertical sectional view and 56 are connected to the partition 22 by rivets showing a modified form of construction. 30 or the like 58 and tothe discs 36, 38 and 40 by Referring to the drawing more in detail, I0 the rivets 4i which secure the discs 36, 38 and 40 designates a suction cleaner carried by front and together. The exact structure of the spring as rear wheels I2 and provided with a suction nozzle I 4 in which is preferably mounted the usual brush roll or agitator I6. A motor I 8, provided with a 35 shaft I8, drives a suction fan 20. In front of the fan 20 is a wall or partition 22 which is pro vided with an opening 24 constituting an inlet for semblies may be varied as long as they serve to permit movement but not free rotation of the ñlter 34. - Operation 'As the shaft I9 is rotated, the shaft 48 is r0 the fan 20. The partition 22 is secured to any tated eccentrically of the shaft I9. Since the desired support within the cleaner casing such as 40 filter 34 is prevented from rotation with the shaft to an abutment 26 which is suitably secured to the 48 by the retaining spring assemblies 54 and 56, casing. Behind the fan 20 is another wall or it gyrates about the axis of rotation of the shaft partition 33 provided with air outlet openings 32. IS. The partition 30 supports the bearing 33 of the This movement of the filter 34 is diagrammat motor shaft I9. The partitions 22 and 30' thus ically illustrated in Figs. 4 to 7, in which four form a fan chamber 3 I. " positions of the filter are shown. It is, however, Between the fan 23 and the nozzle I4 is a tubu understood that, in its gyratory movement, the lar ñlter 34 for separating the coarser particles ñlter will assume an infinite number of inter of dirt from the air stream moving from the noz mediate positions. In other words, every point zle towards the fan. The filter 34 is preferably on the surface of the ñlter moves in a circular made of wire fabric of the desired mesh, but it path eccentric to the axis of rotation of the shaft may be made of cloth or a combination of cloth 48. In Fig. 4, the filter 34, the rivets 4I and the and wire screening or other porous material. The springs 66 and 62 are shown in the position they ñlter 34 is preferably of a frusto-conical shape will assume when the eccentric shaft 48 is in its and is clamped at its larger end between the uppermost position, as shown in Fig. l. „ » flanges of a pair of discs 36 and 38 which are se In this position, the rivets 4i are intheir up cured to each other and to a disc 40 by rivets or permost position and the springs 69 and 62 are the like 4I . The disc 40 is provided with openings stretched to converge upwardly towards the riv 42 registering with the fan inlet 24 in the parti ets 4 I. When the shaft 48 has gone through one tion 22. The marginal portions of the discs 36, 38 60 half of a revolution, the parts will appear as 2,409,230 3 4 disc 4D. For example, when the shaft 48 is in its uppermost position, the ñexible element 10 has a fold or wrinkle along its upper portion, while the lower portion of the element 10 is, comparatively shown in Fig. 6, in which the shaft 48 and the rivets 4| are in their lowermost position, and the springs 6D and '.62 are stretched to converge down wardly toward the rivets 4I. When the shaft 48 speaking, stretched out. is moved through an angle of 90 degrees from -. By this construction, the cost and weight of the parts 36, 38 and 44 are eliminated and a complete seal is obtained between the high and low pressure sides of the vfilter 34, thus insuring that all of the air drawn either of the positions in Figs. 4 and 6, the parts will assume the approximate position shown in Figs. 5 and '7, and so on. As shown diagrammat ically in Figs. 4 to '7, each of the rivets 4l follows the path illustrated by the arrows 64 while the 10 by the fan 2€! will pass through the filter 34. Except as pointed out, the modified form of in shaft 48 follows a similar path with reference to4 the axis of the shaft I9. The filter 34 thus pre vention illustrated in Fig. 8 is constructed and operates in the same manner as that explained sents a conical, gyrating surface to the dirt- .Y in connection with the structure shown in Fig. 1. While I have shown my Yinvention in several forms, it will be obvious -to those skilled in the As. the dirt-laden air is drawn towards and art that it is not so limited, but is susceptible of through the filter 34, the coarser particles of dirt various other changes Aand modifications with in the air stream impinge upon the conical sur out departing from the spirit thereof, and I de face of the filter and are thrown ofi by the high speed gyratory movement thereof. These parti 20 sire,~ therefore, that only such limitations shall be placed thereupon as are specifically set forth cles of dirtpcollect in the receptacle 53. in the appended claims. ’ As theA filter gyrates, a portion of the conical What I claim is: surface thereof moves in opposition to the flow of 1. A suction cleaner> comprising a casing, a fan the air through the filter and Vhence the exterior surface Yof this portion is momentarily subjected 25 motor unit disposed in said casing for moving air therethrough, a tubular filter movably mounted to increased air pressure. _ On the other hand, _the in the path of iiow of air through said casing, exterior surface of the opposite portion of the means supporting said filter and driven by the filter moves away from, or in the direction of ñow laden air stream flowing from the nozzle I4 to wards the fan 2U. v , . n 15 shaft of said fan motor unit for imparting to. said of the air, and the exterior surface of this por tion is momentarily subjected to decreased air pressure. The reduced airlpressure on the'ex filter a gyratory movement about the axis of said shaft, said last-mentioned means including a terior of the latter portion causes air momentarily to fiow from within the filter outwardly through this portion. The air flowing outwardly through this portion of the filter blows out dust particles on which said filter is movably mounted, and means for preventing rotation of said filter. gyratory element eccentrically connected to and driven by the shaft of the fan motor _unit and 2. A suction cleaner comprising _a casing,‘a fan which may have _lodged in the pores thereof, as well as larger pieces of dirt which may have been motor unit disposed in said casing for moving air held against the filter surfaceV by exterior air therethrough, a tubular filter movably .mounted stream. Therefore, air from IWithin theA screen now fiows outwardly through the lower portion of the filter. _The opposite action` takes place 45 by a shaft of said fan motor unit and on which in the path of flow of air ,through said casing, pressure, and thus prevents clogging of the filter. For example, as’the shaft 48 moves to its upper 40 means supporting said filter and driven by the shaft of said fan motor unit for imparting to said . most position shown in Fig. 4, the upper portion filter a gyratory movement about the axis ofsaid of the filter moves against the air stream While shaft,A said last-,mentioned'means including a sec thelower portion of the filter moves with the air ond shaft, eccentrically connected to and driven said filter is movably mounted, and yielding means for preventing rotation of said filter.> when the parts are in the position shown in Fig. 3. Al suction cleaner comprising a casing, a fan 6. The right- and left-hand portions of the motor unit. vfor moving air through said casing, filter are subjected to the same action when the parts are as shown in Figs. 5 and '7, and other in 50 a shaft eccentric to and driven by the shaft of said fan motor unit, a supportcarried by s_aid termediate portionsof the ñlter will be subjected shaft, a'tubular filter carried by said support, a to the same action as the filter moves through pair of springs, a fixed member positioned within successive intermediate positions. said casing, means for connecting said springs The air passing through the filter 34 and be tween the overlapping portions of the discs> 36, 55 to diametrically-opposed portions of said fixed membenhand means for connecting said springs 38 and 48 and the bafiles 44, flows through the to diametrically-opposed portions of said support. openings 42 into the inlet 24 of the fan chamber 3l . From the fan chamber, air flows through the n ¿1.,Means Vfor imparting a gyratory. movement openings 32, around the motor i8, and _out to a tubular filterl disposed in the path ofY fiow of through a rear filter 66 and an exhaust opening 60 a stream_of air, said means including a rotating shaft on which said filter is mounted, and yield 68. Ther filter E4 serves to remove the finer parti cles of dust from the air before it is discharged into the room. ` ing means connected to said filter and to a fixed support for preventing rotation of said filter with ` Inì the construction shown in Fig. 8, the annu said shaft. lar baffles 44 and the discs 36 and 38 are replaced 65 by aflexible element 'IIJ which mayor may not be of -porous material. The element 'l0 is in the nature of a fiat ring, the inner- periphery of which is secured to the _outer periphery of the disc 49, as at l2. The outer periphery cf the flexible ele ment 1l! is secured to the cleaner casing, asV at 14. Asv will' be seen from Fig. 8, the flexible ring l0 is made bigger than the space to be closed thereby, so as to permit free movement of the ` - , . 5. Means for imparting a gyratory movement to a tubular filter disposed in the path of flow of a stream of air, said means including a rotating shaft, an .eccentric shaft driven by said rotating 70 shaft and on which _said lfilter is mounted, and yielding `meansyconnected to said filter and toa fixed support> for permitting movement of said filter but preventing rotation of said filter with said eccentric ' shaft. Y , , ‘ l ' A . CHARLES H. TAYLOR,` Disclaimer _. 2,409,230.-Uharles H. Taylor, Springfield, Mass. SUCTION CLEANING APPARATUS. Patent dated Oct. 15, 1946. Disclaimer filed Dec. 23, 1947 ; by the assignee, Westinghouse Electric Corporation. Hereby disclaims from the scope of claim 1 any suction cleaner except wherein the filter is movably mounted on and driven by the shaft of the fan motor unit during the normal full speed operation thereof. [Oficial Gazette Feb. 3, 1948.] '