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Патент USA US2131662

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Sept. 27, .1938.
Filed March '7, 1958
2 Sheets-Sheet 1
Sept. 27, 1938.
Filed March 7, 1938
2 Sheets-Sheet 2
Patented Sept. 27, 1938
PENSING mcQUEns, nmmms, AND. 'rnn
Edward D. Holmes, Chicago, 111., assignor to
Sherwin-Williams Company, Cleveland, Ohio,
a corporation of Ohio
Application March ‘I, 1938, Serial No. ‘194,385
6 Claim. (Cl. 259-51)
‘This invention relates to the art of handling ceptacle into which the paint is poured from the
paints, lacquers, enamels, and the like for com
commercial can has also been used to a limited
mercial use, and its purpose is to provide an ap
extent, but such practice is unsatisfactory for two
reasons. First, when the paint is poured from the
paratus by which a vsubstantial number of dif
6 ferent colors or kinds of paints and the like may
be maintained in condition for immediate use and
by which such paints may be delivered with the
minimum loss of material and of time ‘consumed.
In large paint shops where commercial paint
10 ing is carried on on a large scale, such, for in;
stance, as in automobile body painting depart-‘
ments, different kinds or colors of paints are re
quired at frequent intervals. The term “paint”,
as herein employed, is used in a generic sense to
15 include not only those pigment mixtures which
are commercially known as paints, but also lac
quers, enamels, and the like, and in fact, any
pigment bearing liquid customarily used for sur- >
face coating purposes.
Paints of this character are ‘usually marketed
in containers varying in size from a half pint to
?ve gallons, and so far as the principle of my
invention is concerned, the size of the container
is immaterial. Large users of paints, however,
for the purpose with which my invention is con
cerned, obtainvtheir requirements in one gallon
sizes of the rectangular or what is commonly
known as square can type. For illustrative pur
poses, therefore, this type of container has been
30 selected and herein disclosed in conjunction with
my apparatus as exemplifying the principles in
commercial can into the mixing receptacle a con
siderable amount of the pigment which has set
tled to the bottom of the can is left in the can and
wasted; and secondly, each time a change of color .
is desired, the mixing receptacle must be thor
oughly cleaned, thereby involving further loss of 10
material and additional loss ‘of time.
The primary purpose of my present invention,
therefore, is to provide an apparatus which will
maintain a substantial ‘quantity of paint in the
original commercial cans in a thoroughly agitated
andmixed' condition ready for immediate use.
Such an apparatus eliminates entirely the hand
stirring heretofore commonly practiced and by,
agitating, the paint in the original commercial
cans the-loss of time and material involved in the 20
use of a mixing or agitating machine of the char-v
acter above referred to is eliminated.
Another purpose of my invention is to provide
an apparatus which will enable the agitated and
therefore adequately mixed paints of whatever
color desired to be readily withdrawn from the
commercial cans not only without the necessity of
any hand stirring or agitation but also in such a
way as to avoid slopping or spattering and loss
of paint.
With this end in view, my invention contem
plates, as a part of the apparatus, specially de
The painter has a can or other receptacle from
signed closures or stoppers adapted to replace the
' which he applies the paint either with a brush
35 or with a pneumatic applicator, and whenever
closed and sealed, these closures being designed
his receptacle requires replenishment he obtains
additional paint from a can in which it is re
ceived at the shop. Whether he opens a fresh
caps by which the commercial cans are normally
to prevent leakage from the cans and being pro
vided with manually operable shut-oil’ valves by
which the flow from the cans can be smoothly
can or takes his supply from a partially used can, ‘ and abruptly cut off so as to obviate dripping.
40 it is necessary that the contents be thoroughly
Furthermore, each closure has incorporated in its 40
agitated in order that the pigment be thoroughly
construction a vent valve adapted to admit air
into the highest point of the interior of the can
as the paint is withdrawn, thereby facilitating a
smooth, even ?ow of the paint from the can with 45
out the gurgling and resultant splashing which
accompanies the pouring of a liquid from a closed
mixed with the carrier so as to maintain a uni
formity of color. It is well known, of course, that
when paint stands or remains quiescent even for
45 a relatively short period of time, the pigment will
settle under gravity to the bottom of the can leav
ing the lighter liquid at the top, and consequently
a thorough mixing is required before the can con-'
tents can be withdrawn into the container used
50 by the painter. This mixing or agitating is cus
tomarily done with a paddle or stirrer which is
introduced into the can and by which the user
stirs up the contents. Obviously, however, such
stirring utilizes a great deal of the painter’s time.
A mechanical agitator embodying a mixing re
inverted receptacle.
Other objects and many of the inherent ad
vantages of my invention should be readily ap
preciated as the same becomes better understood
by reference to the following description when
considered in connection with the accompanying
Referring to the drawings:
Fig. 1 is a side elevation of an apparatus con ' insure a snug clamping of the cans but without
structed in accordance with my invention;
injury. the clamping bars 26 are preferably
Fig. 2 is substantially an end elevation, al
equipped on their inner faces with strips of yield
though, technically, a sectional view on the line able material such as sponge rubber or the like
2-2 of Fig. 1;
indicated on the drawings by reference character
Fig. 3 is a sectional view on the line 3--3,of ._ 29.
After the upper row of cans has been loaded
1; 4 is an enlarged fragmentary sectional
view of a portion of the upper can illustrated in
onto the plate l6 and clamped in position, a half
revolution is imparted to the can supporting as
10 Fig. 3;
Fig. 5 is a view similar to Fig. 4 showing a
sembly to dispose the other face of the plate I6
upwardly for the reception of a similar number
of cans which are loaded thereon and clamped in
position in a similar manner. When completely
modi?ed form of closure and vent, this view being
taken on the line 5—5 of Fig. 6; and
Fig. 6 is an elevation looking‘ toward ‘the right
15 .at Fig. 5.
Referring now to the drawings more in detail,
it will be observed that the machine comprises
essentially a frame consisting of the end stand
loaded, the apparatus illustrated carries twenty
?lled commercial cans of paint, each provided 15
with a closure member which prevents leakage.
one-half the cans being faced in one direction
and the other half in the opposite direction. The
shaft I2 is connected through a reduction gear
ing 3| and a manually controlled clutch 32 with a 20
driving motor 33 mounted upon a shelf 34 and
controlled by a switch 35. The details of these
mechanisms are immaterial, it being su?icient to
state that the clutch 32 may be manipulated to
connect the revolvable, can-carrying frame as
ards 5 and 6 connected by suitable bracing ‘I and
20 provided with a shelf 8 extending longitudinally
of the frame, forwardly of the center thereof, and
located to support a painter’s can or receptacle 9
in position to receive a supply of paint from any
of the cans contained in the machine.
Shafts II and I2 journalled in bearings l3 and
M respectively carried by the frame structure are
rigidly connected with the end pieces l5 of a sup
porting frame structure comprising the center
rlate I5 and the side plates l1 and I8. all rigidly
30 connected together and to the shafts H and I2 so
as to revolve asaunit with the shafts.
sembly with the motor 33 and to disconnect it
therefrom at will, and the speed reduction gear
train mechanism being adapted to reduce the
speed of shaft I2 relatively to the motor speed so
that when the motor is running at normal speed, 80
the cans w'll be revolved about the axis of shafts
revolving frame is adapted to carry 'a plurality
H and I2 at the proper speed to cause the con- _
of commercial cans here illustrated as being one
gallon square cans l8 and the machine is shown
35 as of a capacity to carry twenty of such cans.
Each of these commercial cans comprises, as
best shown in Figs. 3 and 4. an outwardly pro
tents of the cans to be churned and agitated so
as to produce a thorough mixing of such con
tents and a uniform dispersion and intermingling
of the paint pigments with the liquid carrier
therefor in each pan. The apparatus may be
operated continuously at very slight expense and
is adapted to maintain in a thoroughly agitated
and mixed condition ready for immediate use
truding neck l9 terminating in a ?ared mouth 2|,
which, when the ?‘led can is shipped from the
paint factory, is closed and sealed by a cap or
cover applied to and fastened over the mouth.
This cover is removed from each of the cans
twenty more or less cans of paint of various colors
or characters.
which is to be placed in the machineand is re
placed by a closure forming part of my apparatus
45 and which will later be explained more in detail
All or any desired portion of the contents of
any of the cans in the apparatus may be with
drawn for immediate use at any time through its
closure member, the details of which will now be
but at present may be said to consist of a hollow
plug portion 22 adapted to enter the ?ared mouth
of the can and snugly ?t the interior of the neck
' described.
Referring particularly‘ to Fig. 4, it will be seen
that body 25 of the closure member is hollow
and provided at its outer end with a port 36 60
through whichv the can contents may be dis
charged. The outer face of the body is machined
?at, and a cooperating valve member 31 rotatably
mounted upon a stud bolt 38 and urged against
the outer face of the body 25 by a coil expansion
spring 39 is equipped with a notch I I providing a
so as to act as a stopper and preclude leakage
50 from the mouth.
The closure includes a ?ange
portion 23 projecting radially beyond the walls of
the neck l9, and this ?ange is adapted to seat
behind the upper portion of side plate I‘! viewing
Fig. 3 by which accidental dislodgment of the
55 closure from the can is precluded when the can
is positioned, as shown, between the plates l1 and
I8. The plain portion of each of these plates
port adapted to register with port 36, thereby af
engages the bottoms of a series of cans, as shown,
while the tops of said cans lie back of the opposed
fording a discharge opening from the can. The
valve is operated by a handle 42, and when closed‘
as shown in Fig. 3. the sharp edges of the notch
4| moving ‘across the end, of port 36 will cut off
the ?ow abruptly and smoothly so that no drip
ping of the paint after the valve is closed can
60 portion of the other plate which is provided with
arcuate notches 24 to permit the projection
therefor of the body portions 25 of the closure
members. It will thus be apparent that when a
series ofcans are placed upon the plate l6, as
65 shown, they are supported thereby in horizontal
position and are held against longitudinal dis
placement by the plates l1 and I8, the notch por
tions of which also hold the closures against acci
dental displacement from the can mouths.
The cans are then locked in this position by
holding or looking bars 26 extending longitudi
nally of the machine and held in clamping rela
tion with the loaded cans by means of posts 21
equipped with wing nuts or other fastening de
vices adapted to hold the bars in position, ‘To
In order to preclude gurgling and splashing
of the can‘contents as it is discharged from the
valve and to insure a smooth and even ?ow when
the valve is open, I have made provision for
venting the‘can which will now be explained.
Upon the inner face of each closure I have 70
mounted a tube 43 extending inwardly'and up
wardly to the upper corner of the can when it
is in pouring position, as indicated in dotted
lines in Fig. 2. In such position, the mouth of
the can is in its lowest position so that the con
tents will ?ow freely therefrom and the vented
corner into which the tube 43 extends is the
highest portion of the can. Within this tube
there is disposed a valve stem 44 carrying at its
inner end a valve 45 adapted to close the inner
end of the tube, as illustrated in Fig. 4, under
the influence of a spring 46 surrounding that end
of the stem which projects through and out
side the flange of the closure. A nut or other
10 form of abutment 41 is located upon the end of
stem 44 against which the spring 46 is biased
to hold the valve 45 in closed position. During
the agitation, therefore, the tube 63 is closed so
that no paint‘ may enter therein. When with
15 drawal of the contents of a can is desired, the
clutch 32 is thrown out, and the can-carrying
frame is brought to rest at the position shown in
dotted lines in Fig. 2, as previously explained,
whereupon a receptacle 9 is disposed beneath the
20 valve of the can from which the withdrawal is to
be made, the valve is opened, and the stem 44 is
ing positioned reversely with respect to the tops
of the cans in the other series, closures for the
tops of the cans for both series, means for lock
ing said cans and closures in said holders, and 10
means for rotating said frame to simultaneously
condition the contents of all of said cans.
2. In an apparatus of the character described,
the combination of a holding frame constructed
to receive a plurality of oppositely disposed series 15
of commercial paint cans, closures for said cans,
means for securing a' plurality of series of cans
and closures in said frame, the cans in one series
being reversed endwise with respect to the cans
in the other series, means for rotating said frame 20
to agitate the contents of said cans, and means
pressed inwardly to open valve 45, thereby vent
carried by said closures and extending above
ing the can so as to permit a uniform and even
the liquid levels in the cans when disposed in
pouring position whereby said cans may be vented
to facilitate the dispensing of the contents 25
3. In an apparatus of the character described,
?ow of contents outwardly through port 36.
25 When the desired amount has been withdrawn,
stem 44 may be released and valve 3'! closed,
thereby abruptly shutting off the. ?ow without
splashing or dripping.
the combination of a frame comprising a cen
tral plate, means for locking a plurality of cans
against opposite faces of said plate, means for 30
rotating said plate about a central, horizontal ,
axis to agitate the contents of said cans, a clo-.
sure for the open end of each can including a
manually operable shut-oil.’ valve' and a vent
ing ‘device for each-closure comprising a tube ex 35
tending above the liquid level in a can when in
In Figs. 5 and 6 I have illustrated a modi
30 ?ed form of closure and vent in which the body
48 of the vent is provided witha pouring port
49 and also with a ventI port 5! in proximity to
the pouring port so that both ports will be closed
when the valve 52 is moved to the closed position
35 indicated in dotted lines in Figs. 5 and 6. The
open position of the valve which permits simul
taneous pouring and venting is illustrated in full
lines in Fig. 6. The vent tube 53, in this in
stance, extends to the uppermost remote corner
of the can, or, in other words, to approximately
the same position in the can as the tube 43,
shown in Fig. 3. Should some of the paint enter
the tube 53 through its open inner end during
the agitation of the can contents, such paint
will flow out through the port 5| as soon as the
valve 52 is opened.
From the foregoing, it will be manifest that
I have provided an apparatus by which a num
ber of cans of paint may be simultaneously con
ditioned, that is, rendered homogeneous through
out and maintained in that condition for im
mediate use when desired without the necessity
of further mixing or agitation. In addition, my
invention provides for dispensing from the ap
55 paratus any desired quantity of the conditioned
contents of any selected can without spattering
or splashing the same and also insures a clean cut
oif of the stream when the desired quantity has
been dispensed so that loss of paint by dripping
‘is obviated. The apparatus substantially elimi
a horizontally disposed, central plate and a side
plate along each longitudinal edge of said cen
tral plate and extending beyond each face of said
central plate to provide a pair of oppositely dis
posed holders, each adapted to receive a series of
. paint cans, the tops of the cans invone series be
pouring position, and a valve closing the inner
end of said tube and operable from outside the
closure to admit air through the tube to the in
terior of the can.
4. In an apparatus of the character described,
the combination of a rotatable frame structure,
means for clamping a plurality of cans in said
structure, means for rotating the structure to
agitate the contents of the cans, a closure for 45
each can including va manually operable cut-oil’
valve, and means carried by each closure for
venting the can, saidlast mentioned means com
prising atube extending from the closure to a
remote corner of the can, a stern extending
through the closure and tube, a valve carried
by the inner end of said stem to close the inner
end of the tube and a spring for yieldinglv holding
said valve in closed position,
5. In an apparatus of the character. described, 55
the combination of a frame rotatable about a
horizontal axis and adapted to carry a plurality
of receptacles, a closure for each of said recep
tacles provided with a dispensing port, means on
the frame for holding said closures in closing 60
nates loss of the painter’s time heretofore oc
relation to said receptacles, a venting tube car
casioned by the necessity for stirring or otherwise “ ried by each closure and extending into the re
agitating the paint to condition it for use, and ceptacle associated therewith to a point above the
also eliminates loss of paint which has hereto
liquid level in such receptacle, the closure and.
venting tube being detachable as a unit from the 85
receptacle, means for rotating said frame to agi
after discontinuance of the pouring.
tate the contents of the receptacles, and valve
The structural details of the apparatus herein means carried by the closures for controlling said
shown and described are illustrative merely and dispensing ports to enable the contents of the
70 are not intended in any manner to circumscrlbe . individual receptacles to be dispensed at will with
the scope of my invention which is de?ned in out the removal of the receptacles from the frame
the following claims.
and for controlling the vent tubes to facilitate
I claim:
such dispensing.
1. In an apparatus of the character described,
6. In an apparatus of the character described,
75 the combination of a rotatable frame including the combination of a frame constructed to carry ‘75
65 fore resulted from splashing and spattering .as
it was poured from the can and from dripping
‘ 2,181,662
a series of commercial paint cans arranged side
by side with their pouring ends faced in a com
mon direction, means for rotating said frame to
condition the contents of said cans, a closure for
the mouth of each can, means carried by the
frame for preventing displacement of said clo
sures from the can mouths, each closure being
provided with a pouring opening and a vent
opening, a. tube carried by each closure and ex
tending from each vent opening into the can to
a point above the liquid level in the can when
said can is disposed in pouring position, said vent
tubes being removable from the cans with the
closures, and manually operable valves for closing 7
and opening the pouring and vent openings of
said closures.
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