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Патент USA US2403970

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My 3» 11%“
E. A. FRENCH ETAL.
2,403,970
SPLIT CASE];l CYLINDRI‘CAL HOUSING FOR SUCTION CLEANERS
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Filed Nov. 2, 1944
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E. A. FRENCH ET AL
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SPLIT CAST CYLINDRICAL HOUSING FOR SUCTION CLEANERS
Filed Nov. 2, 1944
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SPLIT CAST CYLINDRI‘CAL HOUSING FOR SUCTION CLEANERS
Filed Nov. 2, 1944
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SPLIT CAST CYLINDRICAL HOUSING FOR SUCTION CLEANERS
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E. A. FRENCH ETA‘VL
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SPLI/T CAST‘ CYLINDRICAL HOUSING FOR SUCTION CLEANERS
Filed Noir. 2, 1944
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2,403,970
Patented July 16, 1946
UNITED STATES ‘PATENT OFFICE
2,403,970
SPLIT CAST CYLINDRICAL HOUSING FOR
'
SUCTION CLEANERS
Edward A. French and George Sporney, Chicago,
111., assignors to Birtman Electric Company,
a corporation of Illinois
Application November 2, 1944, Serial No. 561,538
'7 Claims. (Cl. 183-36)
2
1
This invention relates to a suction cleaner and
more particularly to a suction cleaner of the tank
type in which a cast tank housing is split on a
portion of the housing forms a dust collecting
chamber M which contains the dust bag 33. Ad
jacent this chamber is a ?lter chamber 50 con
substantially central ‘and horizontal plane to form
upper and lower housing members and is provided
with integrally cast transverse vertical walls
which form seats for the motor of the suction
taining a ?lter 5| which may consist of a screen
52 having a cloth cover 53. This screen is car
ried in a semi-annular groove 54 in the lower
housing member and is pressed against a semi
annular plate 55 in the upper housing member
by a semi-annular stud 5B which is an integral
The invention is illustrated in the drawings in
which Figure 1 is a side elevation of the housing; 10 part of the rear upper housing member 29.
When the lid 29 is raised, the stud 56 is also
Figure‘2 is a plan View thereof; Figure 3 is an
raised, thereby freeing the upper portion of the
end elevation thereof from one end-of th'ecleaner;
?lter. The ?lter is flexible and may be bent suffi
Figure 4 is an end elevation of the other end of
ciently to the rear to grasp it and withdraw it
the cleaner; Figure 5a is a sectional elevation of
the motor end of the housing; Figure 5b is a sim 15 from the groove 54. In order to form an air
tight connection, the stud 56 is provided with a
ilar View or” the other end of the housing; Fig
groove 5‘! into which the ?ange 58 penetrates.
ure 6 is a sectional elevation taken along the line
Immediately adjacent the flange 58 is a semi-an
6—5 in Figure 5a; Figure '7 is a similar view taken
nular groove 59 containing a gasket 68 against
along the linel-‘l in Figure 5a; Figure 8 is a
which the stud 56 presses to seal the ?lter in the
similar view taken along the line 8-8 in Figure
upper half of the housing. The engagement with
5a; and Figure 9 is a fragmentary plan view of
the groove 54 is sufficiently tight to seal the lower
the lower housing member illustrating the flow of
half of the ?lter.
air from the fan chamber to the exhaust.
Immediately to the rear of the ?lter chamber
The cleaner comprises the housing 28 which
50 there is a fan chamber 70. The split wall 'll
is split on the horizontal plane 2| into an upper
between the ?lter chamber and the fan chamber
housing member 22 and a lower housing member
de?nes one side of the fan chamber and is pro
23. The upper housing member is provided with
vided with a metal sleeve 12 which directs air
a, handle 2a. This handle is made up of a stud
from the ?lter chamber into the fan 13. This
'25 which is an integral part of the casting, the
handle proper 26 which is secured to the studs by 30 fan comprises sheet metal walls 74 and 15 be
tween which are mounted a plurality of curved
any appropriate fastening and the arms 27 which
blades which direct the air outwardly as indi
are pivotally mounted on the handle proper at 28
cated by the arrows in Figure 5. The fan is
as shown in Figure '7. The arms 2'! are an inte
driven by the extension 76 of the motor shaft ll.
gral part of the front portion 29.0f the upper
Behind the wall '75 is a secondary chamber 18
housing member. ‘This rear portion forms ‘a re
Within which are mounted a plurality of station
movable lid which is latched to the lower housing
ary blades '19 carried by the metal plate 80 which
member 23 by any appropriate latching device 30.
is mounted by a ?ange Si in the split partition
The lid is provided with an air inlet 3| having an
wall 82. The internal edges of this wall define
annular groove 32 adapted to engage the ordinary
hose. The lid also carries a dust bag 33 having 40 a circular opening within which the flange BI
is ?tted. A second rotary fan 99 likewise car
a substantially rigid neck portion 34 .provided
ried by the shaft extension 16 forms the third
with a ?ange 35 having a resilient annular gas
division of the fan chamber. This fan, like the
ket 36.
?rst, comprises a pair of spaced parallel sheet
The lid is provided with‘ a semi-annular grooved
stud 3'! within which the ?ange 35 may be slid 45 metal Walls 9| and 92 having curved blades 93
which direct the air outwardly toward the walls
from below, when the lid has been raised. The
of the housing. A fourth sub-compartment 94
lower edge of the ?ange 35 abuts when the lid is
of the fan chamber is formed by the sheet metal
closed against the horizontal ?ange~39 of the
Wall 9| of the fan and the split partition walls 95
lower casting, against which it is pressed by the
edge 46 of the lid. It will be observed that in this 50 and 95a. These walls are provided with openings
91 and 98, as shown in Figure 6, through which
manner the bag is sealed between the upper and
the airmay pass from the fan chamber.
lower housing members in airtight engagement.
To the rear of the fan chamber is the motor
Furthermore, the bag is automatically removed
chamber Hill which is divided into three com
by lifting of the lid which may be accomplished
cleaner.
'
by lifting the latching member 30. The front 55 partments, IUI, I02 and I03 by the split partition
3
2,403,970
4
walls I04 and Iiliia and I05 and I05a. These
What we claim as new and desire to secure by
split walls also provide a circular ‘seat for the ?eld
Letters Patent is:
.
I06 of the motor I91. The compartment I03 is
1. In a suction cleaner, a cast housing cen
bounded by the walls I95 and “35a and the split
trally and horizontally split into upper and lower
walls I08 and “38a. Walls 95 and 95a and walls I08 6 housing members and subdivided longitudinally
and I 68a each are provided with a circular central
opening between them in each of which one of
the bearings of the motor is mounted. These
bearings, which are best shown in Figure 5a, com
into a dust chamber at one end of the housing,
a fan chamber, and a motor chamber; there be
ing an air inlet through the housing to the dust
chamber and an air outlet through the housing
prise an annular-‘gasket I ll] mounted in a groove 10 communicating with the motor chamber; a pair
in the collar Ill . Within the collar is a ball—
of split transverse vertical walls in the motor
bearing assembly H2. Corresponding members
chamber integral with the cast housing and each
in the 'wall I03 are indicated by Him, IIIa and
of said split walls having a central opening de?n
H211. The entire motor and its shaft, except for
ing a seat for a bearing of an electric motor.
the shaft 76, is carried between these two ‘bearw 15
2. In a suction cleaner, a cast housing centrally
ings. The commutator H5 is immediately adja
and horizontally split into upper and lower hous
cent the rear bearing Il2a. The commutator
ing members and subdivided longitudinally into
brushes H6 are inserted through the openings
a dust chamber at one end of the housing, a fan
ill in the side walls of the housing. Split ba?le
chamber, and a motor chamber; there being an
walls I20 and £2911 are provided immediately ad 20 air inlet through the housing to the dust cham
jacent and behind the walls E85 and “35a to as
ber and an air outlet through the housing com
sist in directing air through the openings I25
municating with the motor chamber; a pair of
and I22 in the walls IE8 and IGBa. The air pass
split transverse vertical walls in the motor cham
ing out of these openings, is con?ned by the trans
ber integral with the cast housing and each of
verse split walls I25 and HM shown in Figure 9 25 said split walls having a semi-circular central
and the air is thence exhausted through the
opening de?ning a seat for a bearing of an elec
louvres E38. Within the walls I25 and IZba are
tric motor.
the longitudinal split walls I3I and l-Sia and I32
3. A suction cleaner as set forth in claim 1
and I32a leaving openings E33 and i311, as shown
in which one of said integrally east split parti
in Figure 9 and 5c. The path of the air is, there 30 tion walls de?ning a seat for the motor bearings
fore, through the motor, through openings HI
likewise de?nes a partition wall between the fan
chamber and the motor chamber and is provided
to
andcentral
H2 and
opening
then through
I25 formed
openings
between
HEwalls
and i215
with air-directing openings therethrough.
and Iiita and thence to the louvres.
4. A suction cleaner as set forth in claim 1
An auxiliary central opening Hill, however, is
in which at least one split vertical wall is pro
also provided at the rear of the housing. This
vided within the motor chamber integrally cast
opening is normally closed by a split gate IIfli
with the housing and having a central opening
which is urged into closed position by springs
de?ning a seat for the ?eld of said motor.
I42 and I43. When it is desired to operate the
5. A suction cleaner as set forth in claim 1,
cleaner as a blower, the customary hose connec 40 in which a pair of split vertical walls are pro
tion is inserted in the opening I49 pressing the
vided within the motor chamber integrally cast
split gate llli aside and is then extended through
with the housing and each having a central open
the opening I35, thereby cutting off access to
ing de?ning a seat for the ?eld of said motor.
the louvres and directing all of the exhaust air
6. A suction cleaner as set forth in claim 1,
through the hose.
45 in which one side of the fan chamber is de?ned
A rib 55b is indicated in Figure 50. supporting
by a split‘ annular ?ange integrally cast with
the wall 95a.
the housing and having a face de?ning a seat
Suitable means for moving the housing are
for a ?exible. thin ?ltering element vertically and
provided, as for example the wheels 5% which
transversely disposed in the housing.
I
are mounted within the housing in the pockets 50
7. In a suction cleaner, a substantially cylin
ESI and Hit. A lug It?‘at the front end of the
drical cast housing centrally and horizontally
housing provides a slide or skid, but may, of
split into upper and lower housing members and
course, be replaced by a wheel if desired. The
subdivided longitudinally into a dust chamber
upper and lower housing members are held to
at one end of the housing, a fan chamber, and
gether with any suitable fastening means. The 55 a motor chamber; there being an air inlet through
preferred means comprises the bolts H0, best
the housing to the dust chamber and an air out
shown in Figures 6 and 9. These extend from
let through the housing communicating with
openings in the bottom of the housing upwardly
the motor chamber, the fan chamber and motor
through the lower partition walls which are en
chamber being de?ned by and subdivided by a
larged to form sleeves I72 and into threaded 60 series of transverse vertical parallel walls in—
bosses I13 formed by enlargement of the upper
tegrally cast with said housing and centrally and
partition walls. The housing is preferably cast
horizontally split, a pair of said walls each de
from a light metal such as aluminum or mag~
?ning a seat for the bearings of the suction
nesium or their alloys, but may be cast (molded)
motor, a pair of said walls de?ning a seat for
from a non-metallic substance such as a plastic. 65 the ?eld of said motor, and a pair of said walls
This invention is related to that disclosed in
de?ning subdivisions of the fan chamber altering
the Charles H. Sparklin application, Serial No.
the direction of the movement of air therethrough
548,920, ?led August 10, 1944.
The foregoing detailed description has been
given for clearness of understanding only, and no 70
unnecessary limitations should be understood
therefrom.
during operation of the cleaner.
EDWARD A. FRENCH.
GEORGE SPORNEY.
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