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Патент USA US3054542

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Sept. 18, 1962
F. L. KUREK
3,054,533
APPARATUS FOR CONTROLLED DISPENSING OF LIQUIDS
Filed Jan. 4, 1960
FRANK L.‘ KUREK
M
ATTORNEY
Unit
States Patent
that:
1
2
3,054,533
APPARATUS FOR CGNTROLLED DISPENSING
0F LIQUIDS
3,454,533
Patented Sept. 18, 1962
_
Frank L. Kurek, 699 Charles Lane, Madison, Wis.
Filed Jan. 4, 1960, Ser. No. 158
7 Claims. (Cl. 222—70)
material which will not be easily bent or deformed, such
as spring tempered non-magnetic stainless steel. Under
cover 16, connecting rod 21 carries rubber stop washer 24,
upper stop bushing 25, solenoid core 26 and lower stop
bushing 27. Solenoid core 26 is slidably engaged with
connecting rod 21 between upper stop bushing 25 and
lower stop bushing 27 which are retained in position by
This invention relates to improvements in apparatus for
set screws 28 and 29. I have found that the distance of
travel of solenoid core 26 on connecting rod 21 should be
Prior to my invention controlled liquid dispensing ap 10 about one-fourth inch for reasons hereinafter stated,
paratus merely provided for the timed raising and lower
though such distance may be modi?ed in relation to the
ing of a ball valve in a discharge nozzle located at the
size of the apparatus. Solenoid core 26 is preferably of
bottom of a storage tank. The volume of output was de
hexagonal or similar shape to reduce friction with mag
controlled dispensing of liquids.
pendent upon the size of the nozzle hole, it being nec
essary to change discharge nozzles whenever it was de
sired to reduce or increase the volume of the out?ow from
the storage tank. As there was no control of the velocity
of the flow of liquid before it reached the nozzle hole,
there was considerable splash-back of the liquid, particu
netic coil 14 and preferably has a small longitudinal slot
paratus which will increase the accuracy in the measure
tapering body 43.
30.
Ball valve 33, of stainless steel or similar material,
is secured to the lower end of metering bushing 23. FIG.
1 shows a cylindrical metering bushing 23 with substan—
tially vertical sides. Discharge nozzle 11 has a recess
larly with liquids of low viscosity. Also, in view of the 20 31 in which metering washer 32 is ?tted, leaving a space
lack of re?nement in the controls which raised and low
32a between metering washer 32 and metering bushing
ered the ball valve in the discharge nozzle, there was less
23. Normally ball valve 33 is smaller than the inside
accuracy in the quantity of liquid delivered, and there
diameter of metering washer 32. Outlet 34 of discharge
was usually some “dripping” of the liquid from the dis
nozzle 11, preferably has a substantially vertical short lip
25 or wall 35 with a slightly sloping valve seat 36. The
charge nozzle even after it was closed.
It is an important object of this invention to provide
bottom wall 37 of discharge nozzle 11 may be ?at. Dis
apparatus for greater versatility in controlling the dis
charge nozzle 11 preferably has guide ribs 33 which are
pensation of liquids having varying degrees of viscosity.
sloping at the top 39. The floor area 40 of discharge
Another object is to provide apparatus to regulate the
nozzle 11 between the guide ribs 38 is preferably substan
quantity of liquid to be dispensed simultaneously with 30 tially ?at. Discharge nozzle 11 may be secured to tank
the pouring of the liquid and without the removal or dis
13 by coupling 40a by threaded engagement or other
assembly of the discharge nozzle unit.
attaching means which will permit a ready connection.
A further object of this invention is to reduce the dis
FIG. 2 shows another form of metering bushing 41
charge velocity of the liquid from the dispenser so as to
with a cylindrical body 42 which has a tapering body
minimize the amount of splash-back as the liquid is dis 35 43. Tapering body 43 narrows to the size of shank 44
pensed into a container.
which extends between tapering body 43 and ball valve
An additional object of this invention is to provide ap
33. Space 43a extends between metering washer 32 and
ment of dispensed liquids.
FIG. 3 shows another form of apparatus without a
metering bushing, but with a plastic metering washer 45
having a diagonal split or cut 47, which cut is in closed
position when in operating position in slot 31. Space 46
closed.
extends between rod 20 and metering washer 45. I have
Other objects and advantages of this invention will be
found that metering washer of the product known as
apparent from the following description when considered 45 “Te?on” has the required ?exibility, durability and chemi
with the accompanying drawings.
cal resistance. A two-piece stainless steel metering washer
In the drawings:
may be used instead of the above-described split plastic
FIG. 1 is a vertical plan view of one form of my inven
washer.
tion shown within a cross-section of certain of the parts
With liquid in storage tank 13, ball valve 33 would
with a portion of the connecting rod and tank walls bro
rest on valve seat 36, closing outlet 34. In order to open
ken away.
outlet 34, solenoid magnetic coil 14 is actuated by elec
FIG. 2 is a vertical plan view of another form of my
trical means, and is connected to conventional timing
A still additional object of this invention is to provide
apparatus which will minimize the amount of “drip” from
the discharge nozzle after the discharge valve has been
invention within a cross-section of my discharge nozzle
and washer.
FIG. 3 is a vertical plan view of still another form of
my invention within a cross-section of my discharge noz
zle and washer.
FIG. 4 is a top plan view of my discharge nozzle.
FIG. 5 is a vertical sectional view of my discharge
nozzle substantially along the line 5-5 of FIG. 4.
Liquid ?ow control apparatus 10 has a discharge noz
zle 11 which is normally located at the bottom 12 of a
means to permit outlet 34 to be opened and closed for
predetermined periods of time. As coil 14 is actuated,
solenoid core 26 is pulled upward within coil 14 and
against upper stop bushing 25. As the core 26 strikes
upper stop bushing 25, it overcomes the inertia of rod
21 and ball valve 33 causing a quick response to the
initial voltage in the coil, causing the rod 21 and ball
Slot
60 valve 33 to raise to the position shown in FIG. 1.
30 in the solenoid core 26 further helps to produce a
quick response of the core to the voltage in the core 14
storage tank 13 for liquids and such nozzle provides the
by reducing any eddy currents.
outlet from the tank. A solenoid magnetic coil 14 is
When ball valve 33 is raised, the liquid ?ows between
located at the top 15 of storage tank 13. Magnetic coil 65 metering washer 32 and metering bushing 23 into dis
14 has a cover 16 with a raised centrally-disposed top 18
charge nozzle 11 through outlet 34. The amount of
which may be removable and which has an aperture 19‘.
liquid passing through outlet 34 within a given time period
Magnetic coil unit 14 may also be removed from tank
is determined by the viscosity of the liquid and the size
13. The upper end 20 of connecting rod 21 projects up
of metering washer 32 which can be interchanged as
wardly through aperture 19‘ and extends downwardly 70 desired. When space 32a between metering washer 32
through tank 13, and is secured at its lower end 22 to me
and metering bushing 23 is small, the quantity of liquid
tering bushing 23. Connecting rod 21 is preferably of
passing through outlet 34‘ is restricted. If it is desired to
3,054,533
3
increase the liquid flow (or if the viscosity of the liquid
ing. When a metering bushing 23, as shown in FIG. 1,
is increased) a washer which leaves a larger space 32a
may be inserted. In highly viscous liuids it may be
moves downward when outlet 34 is closed, it displaces an
equivalent amount of liquid which has a tendency to in
crease slightly the ?ow at the time of the shut-off. This
desirable to remove washer 32 completely. Also in such
case a completely ‘free ?ow of the liquid through outlet 01 e?’ect is eliminated by the modi?cation of FIG. 3, because
rod 21 has a smaller volume than metering bushing 23
34 may be permitted by removing metering bushing 23
from discharge nozzle 11. This may be accomplished by
of FIG. 1.
Although I have shown certain embodiments of my
removing top 18 or magnetic coil .14 and pulling con
necting rod 21 upward.
invention, it is understood that all modi?cations con
templated by the following claims are deemed within the
When metering washer 32 and metering bushing 23
spirit and scope of my invention. For example, it is
are used as shown in FIG. 1, they control the ?ow of
evident that the connecting rod may be moved by other
liquid through outlet 34. The amount of back~splash is
means such as an air cylinder which can also be con
substantially reduced as compared to the old apparatus
which merely permitted the liquid to ?ow through the
outlet without internal nozzle controls over the liquid 15
?ow. Metering washers 32 may be exchanged or re
placed in recess 31 by removing discharge nozzle 11
after removal of coupling 400.
After the desired ‘amount of liquid has been dis
pensed, the coil 14 is deactivated. Solenoid core 26,
connecting rod 21 and ball valve 33 drop until the ball
comes to rest on valve seat 36 to close outlet 34.
The
nected to a standard timing device.
I claim:
1. Apparatus for controlled dispensing of liquids from
a liquid supply source comprising, a discharge nozzle
having an inlet end in communication with said supply
source and an outlet end below the inlet end in spaced
relation thereto, a valve for said outlet end, a metering
bushing secured to said valve extending upwardly and
above said inlet end, a metering washer having an open
ing smaller than the inlet end of said discharge nozzle
encircling the metering bushing at said inlet end with a
space between the metering bushing and the metering
washer to permit the ?ow of liquid therethrough to said
of the ball valve 33 as it strikes valve seat 36. Thus,
outlet 34 is closed quickly and positively to prevent
outlet end, said space being of smaller cross section than
said outlet end, a connecting rod extending upwardly
passage of additional liquid or dripping. Guide ribs 38
guide the ball directly to the outlet which also speeds
from the metering bushing, means in communication with
up the closure of outlet 34, without substantial wear on 30 said connecting rod for lowering and raising the connect~
the ball valve or valve seat. The sloped top 39 of guide
ing rod to engage and disengage said valve in and from
ribs 38 are especially helpful when inserting ball valve 33
said outlet end at predetermined intervals, a plurality of
guide ribs extending inwardly from the wall of said dis
into the discharge nozzle '11. The shortened lip 35 also
reduces the amount of liquid which may hang on to the
charge nozzle between said inlet end and said outlet end
outlet, thereby minimizing dripping after the outlet is
in spaced relation to engage and maintain said valve in
closed. Thus, I have reduced dripping substantially by
substantially vertical alignment with said outlet end dur
ing engagement and disengagement therewith.
(l) reducing the area to which material may cling after
2. Apparatus for controlled dispensing of liquids from
the outlet is closed; (2) counteracting the bounce of the
a liquid supply source comprising a discharge nozzle
ball valve as it strikes the valve seat; and (3) providing
a quick positive ?t for the ball valve in the valve seat.
having an inlet end in communication with said supply
solenoid core 26, however, continues to drop until it
strikes lower stop bushing 27. As the core 26 drops
against lower stop bushing 27, it counteracts any bounce
By having connecting rod 20 extend above top 18, the
source and an outlet end below the inlet end, a valve
operator can observe the rods upward and downward
for said outlet end, a metering bushing with a tapering
movement to ensure proper operation of the valve.
body above said valve at said inlet end, a shank con
Metering bushing 42 shown in FIG. 2 has the further
advantage of adjusting the amount of the ?ow of liquid
from outlet 34 when the discharge nozzle is in opera
tion without stopping to dissemble the unit. Thus, by
removal of top 18 ‘or coi-l unit ‘14, rubber stop washers 24
necting said metering bushing and said valve, a meter
ing washer having an opening smaller than the inlet end
of said discharge nozzle but larger than the greatest di
ameter of said tapering body encircling the metering
may be added to or subtracted ‘from upper rod 20 and
then replacing the top or coil unit. In this way, the
position of tapering body 43 is raised or lowered in
relation to metering washer 32.. If rubber stop washers
24 are added, the space 43a is narrowed as tapering body
43 is lowered, and the liquid ?ow is reduced. If the
number of rubber stop washers 24 is reduced, the space
43a is increased in size as tapering body 43 is raised.
Thus, as stated, adjustment of the flow rate may be made
bushing at said inlet end with a space between the meter
ing bushing and the metering washer to permit the ?ow
of liquid therethrough to said outlet end, a connecting
rod extending upwardly from the metering bushing, ad
justable means on said connecting rod for lowering and
raising said metering bushing when said valve is open
to regulate the liquid ?ow through said space, means in
communication with said connecting rod for lowering
and raising the connecting rod to engage and disengage
said valve in and from said outlet end at predetermined
intervals and guide means for said valve extending in
wardly from the wall of said discharge nozzle.
without draining the liquid from storage tank 13 and
without removal of discharge nozzle 11. More precise
adjustment may be made in raising or lowering tapering 60
3. Apparatus for controlled dispensing of liquids from
body 43 by having a screw adjustment for upper rod 20
a liquid supply source comprising, a discharge nozzle
at aperture ‘19 and top 18.
having an inlet end in communication with said supply
The form shown in FIG. 3 uses a split plastic metering
source and an outlet end below the inlet end in spaced
washer 45 without a metering bushing. By splitting the
relation thereto, a valve for said outlet end, a connect
plastic washer, it can be easily placed around rod 21. The
ing rod extending upwardly from the valve, a metering
inside dimension of the washer may thus be of any size
washer having an opening smaller than the inlet end of
to control the liquid ?ow as desired. The use of a
said discharge nozzle encircling the connecting rod at said
plastic washer is particularly convenient since the user
inlet end with a space between the connecting rod and
can ‘drill it to any size ori?ce that suits his needs. The
the metering washer to permit the ?ow of liquid there
main advantage of this form rests in its gentler dis 70 through to said outlet end, said metering washer being
charge velocities and lower available ?ow rates. It has
of ?exible material and being split, said space being of
been found particularly useful in dispensing thin, non
smaller cross section than said outlet end, means in com
viscous liquids. This modi?cation also has less punch-out
munication with said connecting rod for lowering and
effect when ball valve 33 comes in contact with valve
raising the connecting rod to engage and disengage said
seat 36, than exists when rod 21 carries a metering bush 75 valve in and from said outlet end at predetermined in
3,054,533
5
6
tervals, a plurality of guide ribs extending inwardly from
tween the metering bushing and the metering washer to
permit the flow of liquid therethrough to said outlet end,
means secured to said metering bushing in cooperation
with said valve for opening and closing said outlet end,
the wall of said discharge nozzle between said inlet end
and said outlet end in spaced relation to engage and
maintain said valve in substantially vertical alignment
with said outlet end during engagement and disengagement
and adjustable means in communication with said meter
ing bushing for lowering and raising the metering bushing
therewith.
when said outlet end is open to regulate the liquid ?ow
4. The invention of claim 7 wherein the discharge
through said space.
nozzle has a plurality of guide ribs for said valve extend
ing inwardly from the wall of said discharge nozzle sub
7. Apparatus for controlled dispensing of liquids from
stantially from the inlet end to the outlet end.
10 a liquid supply source comprising, a discharge nozzle
having an inlet end in communication with said supply
5. Liquid discharge apparatus for use with a liquid
supply source comprising, a discharge nozzle having an
source and an outlet end below the inlet end, a valve
inlet end and an outlet end, a valve within said discharge
for said outlet end, variable flow rate means at the inlet
nozzle for said outlet end, a metering bushing secured to
said valve extending toward and beyond said inlet end,
a metering washer having an opening smaller than the
inlet end of said discharge nozzle encircling the meter
ing bushing at said inlet end with a space between the
rate of liquid to be dispensed from said outlet end, means
connected to said valve for lowering and raising said
valve in and from said outlet end at predetermined in
end of said discharge nozzle for determining the flow
tervals, and means in cooperation with said lowering and
raising means for adjusting said variable ?ow rate means,
metering bushing and the metering washer to permit the
?ow of liquid therethrough to said outlet end, said space 20 said variable ?ow rate means being secured to said lower
ing and raising means.
being of smaller cross section than said outlet end, and
means in communication with said valve for opening and
References Cited in the ?le of this patent
‘6. Liquid discharge apparatus for use with a liquid
UNITED STATES PATENTS
supply source comprising, a discharge nozzle having an 25
Re. 23,730
Mojonnier ___________ __ May 18, 1954
inlet end and an outlet end, a valve within said discharge
824,468
Calley ______________ __ June 26, 1906
nozzle for said outlet end, a metering bushing with a
closing said outlet end.
tapering body at said inlet end and extending outwardly
therefrom, a shank connecting said valve and metering
bushing, a metering washer having an opening smaller
than the inlet end of said discharge nozzle but larger
than the greatest diameter of said tapering body encircling
the metering bushing at said inlet end with a space be
2,111,232
2,555,907
VJetzel ______________ __ Mar. 15, 1938
Venard _______________ __ June 5, 1951
2,566,051
Avery _______________ __ Aug. 28, 1951
2,601,139
Hill ________________ __ June 17, 1952
2,925,102
2,979,231
Cummings et al ________ __ Feb. 16, 1960
Witherspoon __________ ._ Apr. 11, 1961
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