Document 6578427

April 17,1945.
D_ B, REPLQGLE
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2,373,916
DUST FLOW INDICATOR FOR SUCTION CLEANING DEVICES
Original‘ Filed April 9, 1941
2 Sheets-Sheet 1
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D. B. EEPLOGLE
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April 17, 1945.
D. B. REPLOGLE
2,373,916
DUST FLOW INDICATOR FOR SUCTION CLEANING DEVICES
Original Filed April 9, 1941
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2 Sheets-Sheet 2
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D. B. EEPL OGLEL ,
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Patented Apr-.17., 1945
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PATENT ' Q‘FFi-EE
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CLEANING Demons:-
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Daniel Benson Replogle,~ "deceased, ' late of
_ Berkeley,'0alif.', by Bank of‘ America National‘
~ Trust & Savings Associat'r0n,, San Francisco,.
_ C'aIiL, vCarl S. Replogle; Piedmont‘, Harold E.
Queen, .Berkeley, and Laurie H. tB‘ul‘lock,
Berkeley, ‘Calif; executors, assignors. to. The ‘
. Ohio Citizens Trust: Company, 11012610,.Qhi1); a
corporation of Ohio, as trustee
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Original application April‘ 9,1 1941, Serial No;
387,717. Divided and this application’ Novem
ber‘l'?, 1943; ‘Serial No. 5101,8111
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".avo'ilaims. ’ (01.30.2-655,
able
description.‘
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platen
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- Referring to the drawings and with particular?
reference to‘Fig. l-,'; the numeral 11!‘ denotes a p01‘
' tion of thefuselage- of an airplane‘ of‘any' suitable
type; When the plane is in motion being’ driven
by means of its propellers, the forward motionof
& the'ship. tends to produce a condition of increased
if pressure at the ‘forward portion'of' the ship and
used for clearing; theirbaggage, clothing, etc.»of
any dust, pestifercus-insects or’larva which may
have- accumulated and these same cleaning rap-‘F
a' conditioniofv reduced pressure toward‘ the. rear
end‘ thereof; This reduced pressure, orpartial
.pliances maybe used if desired. for clearing table _
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appliance'is not in use‘. _
of the passengers for appliancesv which may be
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closing the suctionconnection when i‘ the cleaning
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Fig. 8{ is- an-‘enl‘arged detail showing a valve for
On account of the great increase‘in' air travel.
particularly betweenthe ‘tropics. and‘ northern
climates, there is now an urgentneed on the ‘part ~
debris and litter of every kind,
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paratus‘is connected‘- to a- rear compartment of the.
Theinvention relates to cleaning devices for
airplanes and like moving vehicles'wherein the
partial vacuumfcreated at certain portions of the
vehicle while in motion is utilized for the'_opera-'
tion of suction cleaning appliances or any suit'-_
vacuum‘ is‘utilized according to my invention to
, .
- Furthermore, in the compressed air passenger
operate‘ suction cleaning appliancesfno separate a _
v compartments of airplanes, periodical change of
air is necessary andthev cleaning appliances- of
source-of power beihgrequi‘red for the operation ’
‘ I ‘of such devices.
‘the present ‘invention may also be employed tov
The reference character H denotes a passenger
assist in ventilating ‘such ‘compartments;
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compartment which is generally ?lled ‘with air
The present application is ‘a-‘division of my
under pressure somewhat greater than thenormal
application Serial No. 387,7l’7,‘?le'd April 9, 1941, '
atmospheric pressure. such pressure being; main.
.and the claims of the present applicationaredi
. tained in any suitable manner ‘as. by providing, >
rected particularly to the ‘combined valve and " .25 ventilating means at the forward or pressure por- ,
dust indicator which is included in the system. 1
tion ofthe plane. Such means do not constitute
The invention will be. more readily understood
by referenceto the accompanying drawings and. . Y
the following detailed description-which are in~
tended as villustrative only and not as limiting the
any portion ofthepresent invention and are. not ' ’
‘speci?cally; disclosed herein. since'theyare well
known in the art.
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t l2 there. is indicated a wall or partition
invention to the particular details of construc—> 30 separating
the passenger compartment H from
tionset forth therein.
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In the drawings:
the rear portion of the plane. Extending, rear
wardly from. the-partition. l7. toward the tail of‘
theyplane. isa passage, [3 which extends tothe
tail portion of the plane at which a. partial vac
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Fig. 1 is a view somewhat diagrammatic mj
character, partly [in side elevation and partly in
section, showing aportion of an airplane equipped
uumis created when the plane is; in motion. This ‘
passageway‘may extend inde?nitely through a
with a cleaning appliance in accordance with the
present invention-‘
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hollow brace to the tail ‘of the fuselage, that is,
Fig; 2' is a view on an enlarged scale partly in
end elevation-and partly in'section, showing a ' the same'tubethat carries the suction maybe a
hollow brace,_being a component part of thefuse-v
dust indicator employed in the system; the dust
deflector being directly in front of the air inlet; . 'lage of the plane. .
Fig. 4 is an axial section. through they indicator.
‘I ~ Connected to the ., forward. end of‘ the suction
passage i3‘thro-ugh a dust indicator or the like A
is a flexible ‘hose 15 connected to a wand-like
suction'pipe. 16 which may be of. hard ?ber or any '
and showing its attachment to a partition wall. . '
suitable materialand which‘ is provided with a ‘
Fig. 3 is a sectional view'of the‘ ‘same showing -
the de?ector shiftedslightly to causeqwhirling of
dust about the indicator.
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Fig. 5‘ is a diagrammatic view of an. airplane
showing a modi?cation in which, a suction con
nection is located at the side thereof.
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6 is. an'enlarged detail sectional View of the
same showing cleaning appliances attached to the
suction connection,
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Fig. 7 is‘ a somewhat diagrammatic view partly
in side elevation and partly in section showing a
further modi?cation wherein the cleaning ap
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suction nozzle or floor tooli'l at the end thereof .
I The hose pipe 15. is‘preferably long enough so
_' that the nozzle ll will reach?any portion of the
compartmentll'which it is desired to clean. A
suitable extension device maybe employed‘ if de
sired and thenozzlel or vfloor tool l1 may be sub
stituted by any other ‘formiof nozzle as, is well, '
known in the cleaner art. ,The upper curved ,
n portion
of Wand ltrnay function as a handlefor
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moving the appliance over the floor or other sur
face to be cleaned.
The indicator-A serves the dual purpose of dis—
ing 38 when the valve 3‘! is raised and this cas
ing is provided with a suitable transparent top
4|. If desired the top 4| may be formed as a
valve as in the construction shown in Figs. 1 to 4.
'Where ?ltering is desired a suitable screen 42
closing the quantity of dust being drawn through
the system and of providing a valve for opening
or closing communication between the passenger
similar to the screen 29 may be employed.
compartment and the rear of the plane.
Thus,
?exible pipe i3 is connected to the transparent
this valve serves also as a ventilating means. As
shown the indicator includes a cylindrical casing
top 4| and is connected at its other end to a
A
wand such. as is shown at 34 in Fig. 6 or a tubular
20 suitably secured to the partition I2 as indi 10 member_ l6 such as is shown in Fig. 1, either of
cated in Figs, 1 and 4 and is~provided with an
which may be equipped'with any suitable ?oor
opening 2| communicating through an opening
cleaning tool. Where the suction pipe discharges
in the partition 12 with the suction passage 13.
directly to the outside of the plane the ?lter or
The casing is also provided with an inlet open
screen may be omitted if desired. However, such
ing 22 communicating with a short pipe 23 over
?lter performs the usual function of preventing
which the end of hose I5 is adapted to be ?tted.
loss of valuable articles which may be drawn into
Revolvably ?tted within the casing 20 is an'
the nozzle of the suction cleaner by mistake and
inner cylindrical valve member 24 having a dome
would otherwise be discharged to the atmosphere.
shaped transparent top 25 which may be formed
Theoperation of the ,various forms of clean
of glass, Celluloid, or transparent plastic material 20 ing apparatus herein set forth will be, apparent
such as vinyl resin or the like. The» rotatable
valve is provided with a ?ange 26 which is turned
from the foregoing description. As the plane is
over a ?ange on the top member 25 and serves
partial vacuum is created toward the rear por
traveling forward by rotation of its propellers a
This ?ange also pro
tion thereof and any suction pipe connected to a
vides a ?nger grip for rotating the valve. The -25 location where reduced pressure exists may be
valve member is provided with an opening 21
used in the operation of various forms of clean
which may be brought into registry with the open
ing apparatus. The indicator A or A’ serves to
ing 22 or may be rotated to shut off communi
inform the operator of the quantity of dust which
cation between the front and rear portions of the
is being drawn into the apparatus. It may be
partition [2.
30 noted that dust passing through a transparent
Extending upwardly part-way across the open
passage is not readily observable when traveling
ing 2'! is a de?ector 28 preferably formed integral
at the rate usual in the operation of suction
with the valve member 24 which may be brought
cleaners, and an enlarged chamber such as is
directly into the path of the dust laden air en
provided by the indicator A and A’ has the effect
tering through the inlet passage 23 or‘may be 35 of slowing the motion even in the neutral posi
' to hold the same in place.
moved slightly to one direction or the other so
tion of the de?ector (Fig. 2) ‘and therefore ren
as to cause whirling of the dust either in a clock
wise or a counter-clockwise direction depending
on the direction of rotation, as set forth in my
dering the dust visible, but such dust is rendered
1941, entitled Dust ?ow indicator forv suction
cleaning devices, now Patent No. 2,269,483, dated
January 13, 1942. A suitable screen 29 may be
placed across the opening 2| leading to the pipe
from the direct path as indicated in Fig. 3.
If desired a suitable barometer B (Fig. 1) may
be employed to show ?uctuations in difference
- more Visible by eddying and causing it to re
travel many times in the same path as is the
application Serial No. 381,200, ?led February 28, 40 case where the de?ector is angularly removed
l3 if desired.
between the inside and outside atmospheric pres~
45 sures, since the cleaning apparatus is only oper
Instead of having the passage l3 extend to’
the tail of the plane as indicated in Fig. 1, a
valve 30 may be provided at one side of the fuse
lage at a point where partial vacuum exists. A
?tting 3! may be provided communicating with 50
this valve as indicated in Fig. '7 and a ?exible
hose 32 may be attached at one end to such ?t
ting and at its other end attached to a pipe 33
able when a- considerable degree of difference
exists;
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‘The invention has been described in detail for
the purpose of illustration but it will be ap
parent that variations and modi?cations may be
resorted to without departing from the spirit of
the invention.
We claim:
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comprising 'a tubular handle which communi
1. In an air-method cleaning system, including
cates with the outlet of an indicator A’. A wand
55 a series of'tubular elements connecting zones of
like suction pipe 34 is connected to the inlet pipe
different pressures, a dust indicator interposed
of the indicator-and may be provided with any
‘between a pair of successive tubular elements
suitable suction tool not shown. The hose is
comprising a coupling element having inlet and
sui?ciently long to permit movement of the ap
outlet pipes, a rotatable ‘member having a trans
pliances to any part of the interior of the plane. 00 parent window, and de?ecting means carried by
The construction of the indicator A’ may be simi
said rotatable member and adapted to be posi
lar to that shown at A in Figs. 1 to 4 inclusive, or
tioned adjacent said inlet opening for the pur
may be of the type disclosed in my above men
pose of directing air and dust onto the window.
tioned patent. The general function of both in
said de?ector being movable to various angular
dicators is the same. The curved pipe 33 may 66 positions with reference to the inlet opening for
be used to move the cleaning device back and
the purpose of causing whirling movement in
forth across the surface to be cleaned.
either direction within the indicator.
2. In a'suction cleaning system, a dust indi
In the construction shown in Figs. 7 and 8 a
?uid-tight partition 35 is provided at the rear
cator comprising a cylindrical chamber having
separating the suction compartment 36 from the 70 an inlet for dust laden air in the cylindrical wall
forward portion 50 of the plane. The compart
of the chamber and an outlet opening at the
bottom thereof, a transparent window located op
ment 36 may be opened to atmosphere and the
posite the outlet opening, de?ecting means lo
partition 35 is provided with a ?ap valve 31 cov
cated adjacent the inlet opening adapted to di
ering an opening 38. A nipple 39 at one end oi
the cylindrical casing 40 is inserted in the open~ 75 rect air and dust onto the window, and means
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for angularly adjusting’ said de?ecting means to
cause whirling movement of the air about the
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outlet,‘ said means being adjustable to cause a
whirling movement-in a clockwise or counter
clockwise direction, and a rotatable cylindrical
axis of the cylindrical chamber, said‘ adjusting
valve‘ member ?tting within the cylindrical wall
‘means including a rotatable cylindrical valve
said chamber, saidtransparent window con
member ?tting Within the cylindrical wall of said 5 of
stituting the cover for said rotatable cylindrical
chamber, said Window serving as a cover for said
valve member, and said de?ecting means being
carried thereby.
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3. In a suction cleaning system, a dust indicator ,
comprising a cylindrical chamber having an inlet 10
for dust laden air in the cylindrical wall of the
chamber, and an outlet opening at the bottom
' member, and‘ said de?ector being carried thereby.
BANK’ OF AMERICA NATIONAL
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TRUST 8a SAVINGS ASSOCIATION, _
By T. F. REYNOLDS,
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‘Asst. Tru‘st O?icer, "
CARL‘ S. REPLOGLE,
HAROLD E. QUEEN,
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thereof, a transparent window closing the top of
LAURIE H. ‘BULLOCK,
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the chamber, means located adjacent the inlet
opening for de?ecting the incoming dust and at‘ 15 Executm's, o)‘ the Estate of‘ Daniel Benson
toward said window prior to‘ passing through the
Replogle, Deceased.