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Патент USA US2116233

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May 3, 1938.
Filed Dec. 21, 1936
Zar “
- zfhnzs? C045
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Patented‘ May 3, 1938 Y
*IUNI'TED srArss
. ‘a 2.116.233‘
James D. Cole, Kent, Ohio, asaignor ‘(l-The Black
‘ '
-& Decker Electric Company, Kent,‘ Ohio, a
' corporation or. Ohio
‘ ‘Application December 21, 1936, Serial No. 116,864
3 Claims.
(Cl. 183-37)
This invention‘ relates to an electricrvacuum generally indicated at ‘2|. ' 1‘Aipackinhg
'22‘ is‘
cleaner. ‘The general object of the ‘invention is interposed between the closure member‘ and the‘
to provide a‘ simple 3 and inexpensive cleaner , upper wall ofv the receptacle to‘ maintain an air
which may be readilyassembled in manufacture.
Another object of'the 'present'invention is to
provide a cleaner of a‘comparatlvely small size,
‘ yet. which will advantageously. utilize a compare;
tively large filteringv element, and to so arrange
the element that it will‘ beprotected at all times.
10 It is likewise an object ofthe present inven
tight connection therebetween.
The closure
member depends-into the'receptacle, and provides 5 .
‘a housing for a multi-staged'suctioni fan '23 and
anelectric motor 24,1which is drivingly connected
to operate 1 the fan. I Thearrai'igement is such
that the fan'draws air. from the motor ‘and ex
haustsit through ganiopeningili in‘ the closure 10
tion to resiliently support the ?ltering ‘element in
such a manner as to retain the element expanded
at all times," and yet to’ so'farrange the-support
member ‘from whence it escapes‘ between theover
as to facilitate assemblyor replacement of the
This arrangement ‘provides. a} chamber , between
the walls of the motor and fan housing, and the 15
Other objectsof the present invention will be
come more apparent from the following, descrip
tion, reference being had to the accompanying
drawing, in which 1' illustrate a preferred em
bodiment of 'my invention. “The essential fea
tures of the invention will be summarized in the
.Referring now to the drawingnin which I illus
.trate a preferred form ofmy invention. Fig. 1
is a vertically extending, centrally located section
through a preferred form of- my invention, and is
indicated by the lineal-l on Fig. 2; Fig. 2 is a
‘horizontal section, as indicated'by‘ the lines 2-4
on Figel; Fig. 3 is'a view, on a smaller scale than‘
Figs. 1 and 2, illustrating the ?ltering and power
unit removed from the cleaner receptacle to per
mit cleaning of the receptacle.
My improved cleaner comprises an open topped,
light-weight : sheet-metal , re
‘36 ceptacle l0, intowhich a power v?lteringtunit A
is suspended by a cover I l. The receptacle is re
movablyv mounted on a protective base or skirt
l2, the upper walls of which has an opening “l5
through winch-the receptacle projects.
40 nular ?ange l6 formed by onewall of an angular
recess I8 formed inhthe receptacle rests on the
, top wall of the base. A split ring I‘! is placed in
‘the recess l8 below the top wall of the base, vthus
removably securing the receptacle thereto. The
45 side walls of'the' base are as illustrated more rigid
than the walls of the receptacle and provide a
hanging skirt- or “ the cover ‘and, the vvwalls vof ‘the
receptacle; as indicated by the" arrows in Fig. 1.
internaiwalls of the receptacle.
The filtering element comprises a ‘bag-like
member 26 of cloth, paper or similar ?exible
pervious ‘material and has an upper hem in which
is inserted a coil-spring I'I, rubber band or other ‘0
constricting device, which retains the upper open
1 end of the bag tightly on-‘an angular depending
ridge formation 28 of the closure member. As
shown‘ in Fig. 1, this vfilter bag ‘encloses the fan
and motor unit and is spaced apart from the
walls thereof, aswell as from the walls of the
container or receptacle.
' '
Dirt-laden air is drawn into the receptacle
through an opening ‘ill, in the wall of'the re
ceptacle ID. .This opening is provided with a m
?tting 3|, to which the usual cleaner hose ar
rangement 32 is secured in ‘any well-known man
'I'i'iusit-will'beseen that the dirt-laden air . ‘
is drawn into the receptacle between» the ?ltering ‘
element‘ and the,_wal_ls;_iof_ the receptacle._, The 35
dirt removedbythe ?lter drops into a pan-like
formation 33 in) the‘ base of the receptacle.
is resiliently maintained in an
expandedfposltion"and‘spaced fromv the walls of ,
the motor housing- and‘the receptacle ll. As,“
illustratedfinjFigs. QlPand 2 in the drawing, I
have provided a'jserles of‘ posts 40 which are se
cured to'the closurev member v28 at spaced inter
vals and depend downwardly therefrom between
the inner wall of the receptacle and ?lterbag 726. do
Securedto the-bottom of the ?lter bag is arein- -
protecting’ skirt therefor, and maintain the bot
forcing ring 4,5,,having a plurality of outwardly
tom of the receptacle spaced above the cleaner
extending ears “Leach ear being provided with
an opening through which the respective posts
40 extend. The ‘bag is maintained taut by com- 60
pression springs 48, which encircle the‘ posts lll
‘ supporting surface, as wellas counter-balancing
50 the weight of the motor and ?lter unit. ‘
The cover ll comprises a sheet-metal member,
which is secured to upstanding lugs IQ of a closure
member 20.
between the ears 46 of the ?lter bag ring 45 and
The closure member is removably ' collar washers 4B, the upper movementof which
secured to the receptacle by suitable securing
55 means, such as thebayonet lock mechanism,
is limited by cotter pins 50.
This mechanism. enables the bagto be readily ll
positioned on the cleaner, either in the original
assembly or when replacing the bag. To assem
ble the ?lter bag on the cleaner the operator
slips the ring 45 of the bag into position on the
posts 40, and secures the open end of the bag
wardly, and quickly releasable means to hold the
resilient means in active position.
to the annular lip 28 of the closure member 20,
driven suction-producing means mounted on said
cover and depending into the receptacle, a dust
and thereafter compresses the springs 18 and
inserts the pins 50. It will thus be seen that
this admits the positioning of the bag on the
lid 21 of the closure member before the expanding
tension is applied to the bag.
As illustrated in the drawing, and especially
in Fig. 3, it will be noted that the posts 40 ex
tend some distance below the bottom of the ?lter
bag 26. Thus, when the cover, together with the
?ltering and power unit are removed from the
receptacle, they may be placed as a unit on a
supporting surface without danger of damage
to the ?lter bag, the posts forming legs upon
which the unit rests with the filter bag spaced
above the supporting surface.
I claim:
1. In a vacuum cleaner having a hollow casing
with a comparatively stiff wall, a cover therefor,
a pump carried by said cover, a motor carried by
the pump and depending into the receptacle, and
a bag of ?exible pervious material surrounding
the motor and having its open end secured to said
cover; the novel arrangement comprising a rela
tively rigid ring secured to the bottom of said
bag, guides adapted to be carried by said cover
in a manner to coact with said ring to maintain
the bag in axial alignment with said receptacle,
resilient means located outside of said bag and
3:, arranged to act on the ring to force it down
2. In an electric vacuum cleaner, having a ver
tically extending cylindrical receptacle, a cover
member removably secured thereto, a motor
?lter carried by said cover inside the receptacle
and spaced from the side wall thereof, said suc
tion-producing means having its inlet communi
eating with the interior of said ?lter and its out
let in said cover; the arrangement of means car
ried by said cover and extending downwardly be
low the lowermost extremity of said ?lter, and
resilient means carried by the downwardly ex
tending means to normally maintain the ?lter in
a distended position, said ?rst named means be
ing adapted and arranged to support the cover
and parts carried thereby in spaced relationship
to a supporting surface, when removed from the
3. In a vacuum cleaner having a hollow recep
tacle which is open at the top, a cover for the
receptacle having a pump, motor and ?lter bag
depending therefrom into the receptacle with the
bag outside the pump and motor; the arrange
ment for distending the bag comprising rods de
pending from the cover outside the bag, coil
springs on the rods adapted to be connected at
their lower ends to a lower portion of the'bag,
and members qulckly-detachably connected with
the rods and‘ arranged to hold the springs in
stressed condition for retaining the bag taut.
‘ 35
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