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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.]
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