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Патент USA US2133141

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VOct. 11, 1938,
2,133,141
o..Ho|_M-HANSEN `
VACUUM CLEANER
Filed Deo .v 5, 1936 i
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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.
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