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Патент USA US2120266

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‘June 14, 1938.
D. SAMI'RAN
2,120,266
I FLUID DISPENSING APPARATUS
Filed March 10, 1936
INVENTOR ‘
L241//
BY
'
‘SAy/RAYN -
2,120,266
Patented June 14, 1938
UNITED STATES. PATENT . OFFICE
'
_
2,120,266
I
' FLUID DISPENSING APPARATUS
,
David Samiran, Dayton, Ohio
,
Application March 10, 1936, Serial No. 68,076 a
22 (Claims.
(01. 221-95)
'
(Granted under the act of March a, 1883, as
amended April 30, 1928; 3'70 0. G. 757)
- The invention described herein maybe manu-.
factured and used by or for the Government for
governmental purposes without the payment to
me of any royalty thereon.
The present invention relates generally to ?uid
segregating apparatus and more particularly to
obtain a discharge of only the desired of such
?uids from the system.
'1
A further object of ‘the present invention isto
provide‘ in a ?uid dispensing apparatus for the
separation of non-miscible liquids and subsequent “5'
isolation of miscible or non-miscible liquids have
force feed ?uid dispensing systems in which a
ing di?erent speci?c gra'vities a ?oat controlled
ties is obtained.
of said liquids only as long as. said liquid‘ has a
‘
separation of ?uids of different speci?c gravi-v means operating to permit the discharge of one
The present invention is particularly directed desired speci?c gravity, said means'being ren- 1°
to ?uid supply or ?uid dispensing systems in dered' inoperative to prevent discharge of any
which the supply tank is practically inaccessible ‘liquid from said system whenever the speci?c
or disposed underground and in which the ‘?uid gravity of any of the liquids, whether miscible
is fed from the source of supply by suitable ?uid or non-miscible, is less than a predetermined
impelling or ?owing means.
20
-
value.
from
25
30
35
4O
~
'
.
15'
-
A further object of the present invention is
It is a well-recognized fact that while cer-' ‘
tain ?uids of different speci?c gravities; such as to provide in a ?uid dispensing. apparatus‘ of.
this character means for separating and trapwater and oil or water and gasoline, are normal
ly not miscible, yet these ?uids, when agitated, ping the undesired component of twov miscible
will form an emulsion or mixture that is not liquids, said means operating-to not only prereadily separable. When such‘ non-miscible vent the passage of such undesired components
emulsi?ed ?uids are present in a dispensing sys ‘through the system- but also to effect aninter
tem and the tank is inaccessible to permit a mittent discharge of said undesirable components
gravitational segregation of the ?uid of heavier
A still further object of the present invention
speci?c gravity that has settled .to the bottom of
the tank and it is desirable to isolate these ?uids is to provide in a ?uid dispensing system for
from each other, it will be apparent that such the separation of, non-miscible liquids and sub
sequent isolation of two miscible or non-miscible
isolation must take place before the ?uid is dis
pensed from the apparatus. ,Especially is this liquids having different speci?c gravities, ‘an aux
iliary storing chamber having a ?oat controlled
true iivthe ?uid is fed from the source of sup
ply by suction impelling means, as in the case valve mechanism and metering means- associated
of conventional pump dispensing systems for the with said valve mechanism for accurately meas
reason that the mechanical action of the suction uring the quantity of ?uid passing from said stor
ing chamber, said metering means being‘entirely
impelling means tends to emulsiiy thev compo
dependent upon the actuation of said valve mechnentsin passing through the system, thus af
anism to be rendered operative insofar as per
fording no opportunity for the liquids to be grav
mitting discharge of liquid from the system.
ity segregated before reaching the point of de
livery due to the velocity of their passage through " A still further important object of the present
invention is to provide in a ?uiddispensing sys
the delivery pipe.
Under these and other circumstances,
said
system.
I
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Y
>
-
‘
'
~
"
20
'
25
'30"
35
the ' tem of this character, a ?oat controlled means 40
grade, weight, and accurate. measure of the liq
uid dispensed becomes exceedingly problematical.
It is therefore the primary aim and one of the
important objects of the present‘ invention to
45 provide a ?uid dispensing system incorporating
‘a. plurality of ?uid segregators so disposed with
respect to the source of ?uid supply and the
?uid impelling means as to automatically and ac
curately effect not only a segregation and sepa-
ration of the undesirable components, such as
water, oil, etc_., from the ?uids in the system im
' mediatelyeafter their leaving the source of sup
ply, but, in addition thereto, toeffect a separate
segregation of theremaining miscible or non
55 miscible ‘?uids remaining inthe; apparatus and
‘for not only removing air from said system, due
to leakage of the ‘Joints or from other causes,‘
prior-to the passage of the ?uid‘ through'said ,
metering means, but, in addition thereto, to
maintain the, ?uid ‘in ‘said storing chamber '0! 45
a predetermined pressure and therebyvinsure a
discharge of ?uid from said system having a pre
determined weight, grade and measure‘. '
‘
.
With the foregoing and other objects, in view,‘
the, invention'consist‘s in the novel construction 50 ‘
and arrangement. of ele‘mentsgdescribed, illus
' trated,‘ and claimed, itv being understoodthat
other modi?cations may be made.‘ within the
scope of the claims without departing iromthe
spirit oi'the invention. , '
, '
55
2
.
2,120,206
In the drawing:
'
.
Fig. 1 is a diagrammatic cross-sectional view of
the dispensing system in a present preferred em
bodiment of my invention.
a
'
Fig. 2 is an enlarged sectional detailed view of a
bleeder valve arrangement used in connection
with. my invention.
Referring more particularly to the drawing,
wherein corresponding parts are designated by
, like numerals throughout the several views, the
apparatus in the present preferred embodiment
of_ my improved system herein illustrated com
prises generally a source of ?uid supply that is
, located, as is the general custom. in an under
15 ground storage tank A and a ?uid dispensing ap
a gravitational segregation of a ?uid of heavier
20 speci?c gravity from a ?uid of lighter speci?c
gravity and an upper, or secondary, segregator Ii
for separating the residual ?uid received from
said ?rst-mentioned segregator. The lower segre
gator l0 incorporates a ?oat controlled valve
25 mechanism of the type generally set forth in Re
issue Patent No. 19,227, granted to me on June 26,
1934, and in whichI have described a new and
novel method and means for adjusting a ?oat to
have known buoyant characteristics in a refer
30 ence medium of given ‘density but sink in any
_
The upper segregator incorporates a ?oat con
trolled valve mechanism of the type set forth in
my copending application Serial No. 61,361, filed
35 January 29, 1936, in which I have described a
?oat controlled valve mechanism incorporating a
?oat capableof automatically adjusting itself to
have a predetermined weight in a given reference
medium when immersed therein so that, when
40 once adjusted, the upper surface of said ?oat will
assume a predetermined position between the
common surface of such reference medium and
any other overlying medium having a density
45
less than the density of the reference medium.
The system further incorporates the use of im
pelling means such, for example, as a motor
driven pump II which is interposed between the
upper and lower segregator units, heretoforemen
tioned, metering means It for measuring the liq
50 uid discharged from the-upper segregator and a
discharge mechanism l4 for dispensing the
liquid subsequent to its passage through the
metering means.
‘
mined value.
'
The underground tank A is provided with a
55 suction delivery pipe l5 which is connected at its
one end to the upper inlet passage lS-of the lower
segregator Ill. The other end .of the delivery pipe
I! is positioned adjacent the bottom of the tank
A and provided with a foot valve H which op
erates to maintain a constant head of liquid in
the pipe l5 even though the tank is completely
‘
_
v
The ?oat chamber l8 further embodies an up-.
per outlet passage 26 which is connected to the
intake port 21 of the pump l2. The outlet port 10
28 of the pump communicates with a fuel delivery
pipe 29 which connects at its upper end with a
?uid receiving or storing chamber 30 forming a
part of the upper segregator H, heretofore men
tioned.
paratus generally indicated by the letter B. The
?uid dispensing apparatus comprises a primary,
or lower, ?uid segregator Ill adapted to obtain
other medium of less density.
head of the heavier or undesirable component in
the ?oat chamber and to obtain an automatic and
intermittent segregation of such undesirable com
ponent from the ?oat chamber when the com
bined head of the lighter and heavier components
in the ?oat chamber is greater than a predeter
I
15
As a matter of precaution and with a view to
wards avoiding deception in the dispensing of
liquids, the side walls of the storing chamber are
formed of transparent material so that the con
tents of the chamber may be readily observed. 20
Within this chamber there is suitably mounted a‘
self-adjusting ?oat 3| constructed in accordance
with the teachings of my copending application
Serial No. 61,361, hereinabove referred to. The
storing chamber 30 further incorporates an inner 25
transparent container 32 which is spaced from the
side walls thereof. This container is also formed
of transparent material and embodies a lower
outlet passage 33 provided with a valve ‘seat 34
against which the lower needle valve 35 ‘of 30
the ?oat 3| is adapted to seat. The lower
outlet‘ passage 33 of the container 32 is
suitably connected to the inlet .port 36 of the
metering unit l3. The outlet passage 31 of the
metering unit is connected to a dispensing nozzle 35
forming a part of the discharge mechanism here
tofore mentioned“ It will be noted that the pipe
31 which interconnects the metering unit i3 and
the dispensing nozzle l4 includes a pressure con
trol relief valve 38 which operates to control the
pressure of the liquid transmitted to the nozzle l4.
The upper end of the ?uid storing chamber
30 is provided ‘with an adjustable pressure con
trol relief valve 39.‘ This valve, as shown in en
larged detail in Fig. 2, preferably comprises a 45
valve housing 4|! which is suitably secured to the
upper end of the chamber 30 and which is suit
ably apertured as at 4| to receive the upper nee
dle valve 42 of the ?oat II. The housing 40 fur
ther embodies a valve-seat body portion ‘43 50
formed at its lower end with an inner seat 44
against which the needle valve 42 is adapted to
engage.’ The valve body portion 43 further in
corporates an outer valve 45 which engages
against a seat portion formed internally of‘ the
valve housing, as indicated at 46. Movement of
the valve body portion 43 upwardly relative to the
housing 40 is controlled by a spring 41. The
tension on this spring is controlled by a suitable
adjusting nut 48 and voperates to control the 60
opening or closing of said valve body portion.
The valve body portion is further provided
The lower segregator ll includes a ?oat cham -wlth an exhaust port 49 which communicates
ber It, a ?oat l9 disposed within said chamber, a
65 lower needle valve 720 and an upper needle valve ,1 with an air line 50, the latter, in turn, commu
nicating with the upper end of the storage
2 I, both of which are operatively connected to and tank A.
v
controlled by the ?oat It. The ?oat chamber ll
The operation of the device is as follows: Ini
further incorporates a lower outlet passage I2_ tially, let us assume that air is present in the
having a valve-seat 23 against which the lower system,‘ as would be the case upon the initial
70 needle valve 20 is adapted to seat. The passage
assembly of the apparatus. with the pump in
way 22 embodies a discharge tube 24 incorporating operation, fuel contained in the storage tank A
a check-valve 25 which is constructed in accord
will be forced upwardly through the pipe l5,
ance with the teachings set forth in my copending into the‘ ?oat chamber it of the lower segre
application Serial No. 630,237, ?ied August 24, gator ll, through its upper inlet passage l6 and
75 1932, and which operates to trap a predetermined thence outwardly through the upper outlet pas 75
exhausted of liquid.
A
2,190,266
sage 26 and into the pump [2. As long as the
3
'
chamber, the ?oat 3|‘ win tend to rise further
and will raise the valve body portion from its
let passage 16 are of a speci?c gravity which seat 45 against the action of the spring 46, and '
is less than the speci?c gravity of the reference ?uid will be discharged into the line 50 and re
medium to which the ?oat H has been adjusted,‘ turned into the storage tank as long as the pres-’
the ?oat will not be buoyant. Consequently, the sure in the storingchamber 30 is excessive. In
lower needle valve 20 will _be seated on its valve any event, should the volume of liquid entering
seat 23 and the incoming ?uid will be forced the storing chamber be greater than the volume
outwardly and upwardly by suction pressure to
of liquid discharging through the relief valve 39, >
‘the tendency toward increasing pressure would 10
10 ward the liquid storing chamber 30. As the-liq
uid passes through the pump l2 and is being be accommodated throughv the bleeder arrange
several components of the ?uid entering the in
forced upwardly toward said receiving chamber,
ment incorporated in the pump l2.
.
the air that is present will be forced from the
apparatus through the relief valve 39 and thence
15 returned to the storage tank through the con
duit 50. Should the ?uid which enters the lower
The foregoing explanation as totthe operation
of the invention has been limited to cases aris
ing ‘where the ?uid entering the storing chamber 15
segregator chamber comprise several liquids such,
is of a speci?c gravitywhich corresponds to that
for which the upper ?oat has been adjusted.
Should the ?uid entering the'storing chamber
comprise two liquids which are miscible such, for 20
example, as high testgasoline and low test gas
oline, and since the ?oat M has been adjusted
to be buoyant in‘ the heavier of the liquids._there
would occur by reason of the miscibility of such
liquids a. resulting liquid medium having a spe 25
ci?c gravity which is less than the speci?c grav
ity of the heavier liquid but greater than the
speci?c gravity of the lighter liquid. Since, as
' for example, as water and- gasoline, or water,
gasoline, and kerosene, or any combination of
20 liquids which contain at least the reference me
dium to which the lower ?oat has been adjust
ed, the ?oat will respond in the reference me
dium and rise in said ?oat chamber. -For ex
ample, suppose water is the reference medium,_
25 the ?oat will be buoyant in the water, but sink
in any other liquid or liquids having a speci?c
gravity less than the speci?c gravity of the wa
ter, and should the head of water which accu
mulates in the lower ?oat chamber be su?icient
30 to materially raise the ?oat, a segregation'of the
water will occur in the lower ?oat chamber and
a subsequent discharge of such water obtained
or at least one of the components of said ?uid
aforementioned, the ?oat will not be buoyant in
such a resulting liquid by reason of its adjust 30
ment to ?oat in a heavier liquid, no liquid can
be discharged from the storing chamber.
On "
from the apparatus through the discharge tube " the other hand, the entering ?uid may consist
24. If the amount of water entering the lower of two or more non-miscible liquids which re
35 ?oat chamber is excessive, a, further upward dis
placement of the lower ?oat will operate to close
the upper outlet passage 26 and prevent the ?ow
of the overlying medium as‘ well as any other
medium toward the upper storing chamber 30.
~40
As long as the ?uid continues to flow into the
storing chamber 30 and should one of the com
ponents of such ?uid have a speci?c gravity
which corresponds to that for which the upper
_ ?oat 3| has been adjusted, the ?oat will auto
45 matically adjust itself to such component in ac
cordance with the teachings of my above-identi
?ed copending application Serial No. 61,361 and
thereafter rise in said chamber. -In rising, the
lower needle valve will be raised and thus permit
50 a ?ow of‘the desirable component of such en
main in the apparatus even though an undesired
liquid such as water has been segregated from
the system by the lower ‘segregator. ‘Under these
circumstances and as long as the speci?c gravity
of the heavier of these liquids corresponds to the
speci?c gravity of the reference medium to which 40
the ?oat has been adjusted, a segregation will
occur but not otherwise. Therefore, if the head
of the overlying, or lighter, medium be excessive,
the ?oatvwill be displaced downwardly and the
lower needle valve 35 will become seated against 45
the valve-seat 34 and thus again prevent fur
ther passage of any ?uid into the metering unit.
During the time that the pump i2 is in opera
tion and'the passage of the ?uid into the pump
from the lower segregator chamber is prevented 50
by reason of an excess of the undesirable com
tering ?uid into the metering unit l3 and to
ward the dispensing nozzle of the apparatus. ponent in the lower segregator chamber, means,
When a su?icient head of liquid is contained - is provided to permit a rapid discharge of this
within the upper storing chamber, the upper undesirable component. To this end I provide‘ a
needle valve will seat against the valve-seat 23 by-p'ass line 5| which is connected at its upper
which, as aforementioned, is contained within end with the lower inlet passage of the storing
the pressure relief valve 39 and held against chamber 30 and which, at its lower end, is con
opening before a predetermined pressure is nected to the upper inlet passage l6 and the '
reached. and pressure will be built up in the lower ?oat chamber l8. By means of this ar
storing chamber 30. When the pressure in this rangement, as long as the ?uid passageway lead vco
chamber corresponds to the pre-set pressure of ing into the pump from the lower segregator is
the control valve 38, said valve will open and closed, the head of the liquid represented by that
permit a ?ow of the ?uid through the dispensing contained within the receiving chamber and the
by-pass 5] is utilized to force the said undesirable
It is necessary that the expansion of the liquid component through the discharge tube 24, it be 65
nozzle.
‘
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~
in the storing chamber, arising from changes in _' ing understood that during this period air may
atmospheric temperature or other causes, be ae- ' readily enter'the ?uid storing chamber 30 through
commodated with the pump inoperative,otherwise the relief valve 39 heretofore mentioned. - Should
damage would occur with the receiving chamber the level of the liquid in the storing chamber vdrop
by reason of the discharge of liquid through the
70 completely ?lled with ?uid. Under these circum
stances the ?oat 3| willv be displaced upwardly , by-pass 5|, the upper ?oat will‘ be lowered and '
and its upper needle valve will be seated against consequently prevent further passage of the de
the initial valve-seat 43 and prevent the escape
of air or ?uid into the return line 50. Obviously,
with an increase of pressure within the storing
sired liquid into the metering unit.
»
.
It should also be observed that the-construc
tion of the inner container 32 lends itself toward 75
‘
4
- 2,190,200
trapping ‘a predetermined head of liquid there
in, should the head of liquid in the storing cham
ber decrease by reason of leaky connections in
the apparatus between the source of supply and
the storing chamber. Obviously, under these cir
cumstances; when once adjusted to a desired ref
erence medium, the upper ?oat will function
properly.
.
means communicatively connected in common
with the output side of said impelling means, the
input side oi said metering means, and said source
of supply, said ?uid density responsive means
serving to
ponent of
from said
means in
control the ?ow
the residual ?uid
segregator means
accordance with
of a liquid com
medium received
to said metering
a predetermined
, Under ordinary operating conditions-the suc
density and quantity of said component and to
tion produced by the pump I2 has a tendency to control the ?ow of components of lighter density 10
hold the needle valve 2| oi’ the lower segregator of said residual medium to said source when either
in seating engagement with its valve-seat. To the density or- quantity of saidliquid component
this end and in order to obtain a positive unseat
is below the predetermined value.
ing of the needle valve II when occasion requires.
3. In a ?uid dispensing system, a source of ?uid
15 I intend that the needle valve assembly of the v supply, suction means for withdrawing the ?uid
15
lower segregator unit be constructed in accord
from said source and for ?owing said ?uid
ance with the teachings of Patent No. 1,948,543, through said system, segregator means com
issued to me on February 27, 1934, wherein I have municatively connected between said sourceand
described a novel means for permitting a limited said suction .means for effecting an automatic
20 ?oating vertical movement between the ?oat and segregation of a ?uid medium of heavier speci?c
20
the needle valve assembly and which operates to gravity from a ?uid, medium of predetermined
break the vacuum between the upper needle valve maximum lighter speci?c gravity prior to the dis
and its seat and thus permit ?uid to pass into the charge of said'lighter medium through said suc
pump.
'
tion means, ?uid metering means and ?uid den
25
From the foregoing detailed description as to‘ sity responsive means communicatively connected 25
the construction and operation of my dispensing between said suction means and said metering
apparatus, it will be apparent that I have pro
means for controlling the ?ow of a liquid com
vided new and novel ‘means which operate to per
ponent oi’ the lighter medium received from said
.mit a discharge oi’ liquids having a predetermined segregator means to said metering means in ac
30 speci?c gravity-one in which the undesirable cordance with a predetermined density and quan
30
components of two non-miscible liquids will be tity'ot said liquid component.
separated from the desired component and subse
'4. In a ?uid dispensing system, a source of ?uid
quent discharge of the undesired component from supply, suction means for withdrawing the ?uid
the system prior to its teaching the pumping from said source and for ?owing said ?uid
35 unit; one in which all of the air present in the ap
through said system, ‘segregator means communi 35
paratus is bled from the system prior to the dis
catively connected between said source and said
Pensing of any liquid; one in which excessive suction means for effecting an automatic segre
pressure built up in the apparatus may be re
gation of a ?uid medium oi’ heavier speci?c grav
lleved through an arrangement of valves and by
ity from a ?uid medium of predetermined max
passes without the loss of any of the desired imum lighter. speci?c gravity prior to the dis 40
liquid; and, ?nally, one in which the ?uid dis
charge of said lighter 'medium through said suc
pensed is of a predetermined weight, grade, and tion means, ?uid metering means and ?uid den
an amount corresponding to that indicated by the sity responsive means communicatively connected
apparatus.
f
'
in common with the output side 01' said impelling
- 45'
Having described the invention, it will be ob
means, the input side of said metering means and 45
vious to those skilled in the art that the construc
said source of supply, said ?uid density respon
tion shown and described is subject to changes,
sive means serving to control the ?ow of a com
alterations and modi?cations‘. I am fully aware
ponent of the lighter medium received from said
segregator means to said source when the density
and quantity of said component is above a pre
of this and his to be understood that the spe
ci?c construction shown‘ in the accompanying
drawing is, merely illustrative of the present pre
ferred embodiment of my invention and that I
consider myself entitled to all such changes and
modi?cations as may fall within the purview and
55 limit of the appended claims.
'
What I claim is:
1. In a ?uid dispensing system, segregator
means for e?ecting an automatic segregation of
'
'
Y 5. In ‘an apparatus for transmitting a liquid of
predetermined density from a source of supply to
a point of delivery, segregator means for effect
ing an automatic Segregation oi’ ?uids of diiferent 55
speci?c‘ gravities, ?uid impelling means to feed
said ?uids from said source to said segregator
means, ?uid metering means, and ?uid density
responsive means communicatively connected be
?uid supply, ?uid impelling means to feed said tween said ?uid impelling means and said meter
?uids from said source to said segregator means, ing means for controlling the ?ow "of a liquid
?uid metering means, and ?uid density responsive component of the residual medium received from
means communicatively connected between said .said segregator means to said point of delivery
?uid impelling means and said metering means througlrsaid metering means in accordance with
65 for controlling the ?ow oi’ a liquid component of a predetermined ' density and quantity of said
65
the residual ?uid medium received ‘from said component and valve means to control the pres
segregator means to said metering means in ac
sure'oi’ liquid passing toward said point of de
cordance with a predetermined density and quan
livery.
tity oi’ said component.
6. In a ?uid dispensing system, a source of
‘2. In ,a ?uid dispensing system. segregator, ?uid supply, suction means for pumping the ?uid
vmeans ior effecting an automatic segregation oi’ from said source through said system, segregator
?uids oi di?'erent speci?c gravities, a source of. means interposed between said source and said,
?uid supply.__?uid impelling means to feed said suction means, said last-mentioned means com
‘?uids from said source to said segregator means,v prising a, ?oat chamber having a discharge out
75 ?uid metering means and ?uid density responsive
let, a ?oat-operated valve mechanism disposed 76
?uids oi‘ diii'e'rent speci?c gravities, a source of
'
determined value.
2,120,886
within said ?oat chamber operating to e?ect a ‘ through said apparatus, ?uid metering means,
gravitational segregation and isolation of the ?uid density responsive means for effecting a
?uid of heavier speci?c gravity from the ?uids of separate segregation of the residual ?uids received
lighter speci?c gravity prior to the passage of from said segregator means, said ?uid density
said lighter ?uids through said discharge outlet, means being interposed betweensaid suction
?uid metering means, and‘ ?uid density respon
means and metering means and operating to
sive means communicatively connected with said control the .passage of a ?uid having a speci?c
segregator means for effecting a separate segre
gravity lighter than the heavier ?uid isolated in
gation of the residual ?uids received from said‘ said segregator means but heavier than the
segregator, said ?uid density responsive means lighter of the residual ?uids into said metering 10
comprising a ?uid storing chamber, a ?oat-op
means, and valve means associated with said
erated valve mechanism mounted in said storing ?uid density responsive means for limiting the
chamber and interposed between said suction ' pressure of the ?uids therein to a pre-determined
means and said ?uid metering means operating
15 to control the passage of a ?uid into said meter
ing means having a speci?c gravity that is lighter
than the heavier liquid isolated in said segre
gator means but heavier than the lighter liquid
' received in said ?uid storing chamber.‘
.20
7. In a ?uid dispensing apparatus, segregator
means adapted for isolating a ?uid of heavier
speci?c gravity from ?uids of lighter speci?c
gravity ?owing through said segregator from a
source of supply, suction means for withdrawing
2.5 ?uid from said source and for ?owing said ?uid
value.
‘
10. In a ?uid dispensing apparatus; segregator 15
means adapted for isolating a ?uid of heavier
speci?c gravity from ?uids of lighter specific
gravity ?owing _.through said segregator from a
source of supply, suction means for withdraw
ing the ?uid from said source and for ?owing 20
said ?uid through said apparatus, ?uid metering
means, ?uid density responsive means opera
tively connected to said suction means for effect
ing a separate segregation of the residual ?uids
received from said segregator means, said ?uid 25
through said apparatus, ?uid‘ metering means, ' density responsive means comprising a ?uid stor
?uid density responsive means interposed between
said suction means and ?uid metering means for
effecting a separate segregation of the residual
30 ?uids received from said segregator means and
operating to control the passage of a ?uid having
a speci?c gravity lighter than the heavier ?uid
isolated in said segregator means but heavier than
the lighter of the residual ?uids into said meter;
35 ing means, and means associated with said density
responsive means for effecting a segregation of
the heavier ?uid from said segregator means
when said suction means is rendered inoperative
by the e?ects of ‘said heavier ?uid _in said segre
gator.
-
>
8. In a ?uid dispensing apparatus-segregator
means comprising. a ?oat chamber having a dis
charge outlet, a ?oat-operated valve mechanism
disposed within said ?oat chamber adapted for
' effecting a gravitational isolation of the ?uid of'
heavier speci?c gravity ?owing through said seg
regator from a source of supply, suction means
for pumping said ?uid from said source and for
discharging the lighter ?uids, ?uid metering
means, ?uid density responsive means disposed
above said segregator means and communica
} tively connected with and disposed between said‘
- metering means and said suction means for ef~
fecting a separate segregation of the residual
?uids received from said segregator .means. said
density responsive means comprising a ?uid stor
ing chamber, a ?oat-operated valve mechanism
disposed in said storing chamber for controlling
the passage of the desired of said residual ?uids
into said metering means, and means for e?ect
ing a discharge of the ?uid of heavier speci?c
gravity from said segregator means comprising a
valve device associated with said density respon
65
ing chamber, a ?oat-operated valve mechanism
disposed in said storing chamber and interposed
between said ?uid impelling means and said
metering means,‘ and provided with an inlet and
two discharge outlets for controlling the passage
of the desired of said residual ?uids through one
of said outlets intosaid metering means, and
valve means operable in a predetermined posi
tion of the ?oat in said ?uid density responsive ‘
means for preventing the ?ow of ?uid through
said other outlet when the pressure in said
chamber is below a pre-determined maximum
value.
'
>
v
11‘. In a liquid segregating system, a source 40
of liquid supply, at least two liquid segregator
devices communicatively connected with one an-'
other and with said source of supply, in series
relation, and means for supplying said liquid
to said segregator devices from said source of 45
supply, each of said segregator devices serving
to" segregate from said supplied liquid. a liquid
of given density. the density of the liquid segre
gated by one of said devices being different from .
'
‘50
12. In a ?uid segregating system such as de
that segregated by another.
?ned in claim 1 wherein one of said segregators
automatically. controls the supply of ?uid to a
subsequent segregator when the ?uid of prede
termined density segregated thereby. exceeds “a 55
given quantity of supply in the?uid supplied
to said ?rst mentioned segregator device and
another of said segregator devices automatically
serves to prevent the segregation of the ?uid
of predetermined density to be segregated there 60
by when. the quantity of supply .of ‘said, prey,
determined ?uid density in the ?uid supplied
sive means and a by-pass interconnecting said '
to said second mentioned‘segregation device is‘
storing chamber and segregator chamber and op
less than a given quantity of supply.
13. In a ?uid segregating system such as de-: 65
?ned in claim 1 wherein the segregator that
rendered inoperative by the e?ects of said heavier is initially disposed with respect to the source
of supply automatically shuts off the supply of
?uid in saiéi segregator.
9. In a uid dispensing apparatus, segregator ?uid to a subsequent segregator when the ?uid
means adapted for isolating a ?uid of heavier of predetermined density segregated thereby ex 70
speci?c gravity from ?uids of lighter speci?c ceeds a given quantity of supply in the supplied
gravity ?owing through said segregator from a ' ?uid and said' subsequent segregator device auto
source of supply, suction means for withdrawing matically serves to prevent the segregation of
75 ?uid from said source and for ?owing said ?uids the ?uid of predetermined ?uid density in said 75
erating to overcome the suction effects in said
lower ?oat chamber when said suction means is
6
2, 120,266
supply ?uid is less than a given quantity of
supply.
14. In a ?uid segregating system, a source of
?uid supply, a segregator device for segregating
a fluid of given density, a further segregator
device for segregating a ?uid of given density
different in value than the density of the ?uid
to be segregated by said ?rst mentioned device
and impelling means communicatively connected
10 at its input with said ?rst mentioned segregator
supply through said segregators and return in a
circuitous path, each segregator device serving
to. segregate from said supplied ?uid, a ?uid of
given density, said segregated ?uids di?ering in
density values, and means operatively connected
with one of said segregators for opening or clos
ing said circuitous path in accordance with a
predetermined change in the quantity of supply
of the ?uid to be segregated thereby.
20. In a ?uid segregating‘ system, a source of 10
device and at its output with said second men
?uid supply, at least two ?uid segregating'devices
tioned segregator device for supplying ?uid‘f‘rom
said .source of supply to said segregator devices.
communicatively connected with one another
and with said source of supply, in series relation, '
and means for forcing ?uid from said source of
supply through said segregators and return in a 15
circuitous path, each segregator device serving '
to segregate from said supplied ?uid, a ?uid of
15. In a ?uid segregating system as de?ned in
15 claim 4 wherein said ?rst mentioned segregator
automatically controls the supply of ?uid to the
second mentioned segregator device when the
quantity supply of the ?uid of predetermined
density to be segregated thereby exceeds a given
quantity of supply in the ?uid supplied to said
first mentioned segregator device.
16. In a ?uid segregating system such as de
?ned in claim 4 wherein the second mentioned
segregator device automatically serves to pre
25 vent the segregation of the ?uid of predetermined
density to be segregated thereby when the quan
tity of supply of the ?uid of predetermined den
sity in' the ?uid supplied to said second men
tioned segregator device is less than a given rate
of supply.
'
1'7. In a ?uid segregating system, a source of
?uid supply, at least two ?uid segregating devices
communicatively connected with one' another and
given density, said segregated ?uids differing in
density values, and means operatively connected
with one of said segregators for opening or clos
ing said circuitous path in accordance with a
predetermined change in the ?uid pressure in
said segregator.
'
_
20'
_
21. In a ?uid segregating system, a source of
?uid supply, at least two ?uid segregating devices
communicatively connected with one another and
with said source of supply, in series relation, and
means for forcing ?uid from said source of sup
ply through said segregators and return in a cir
cuitous path, each segregator device serving to 30
segregate from said supplied ?uid, a ?uid of
given density, said segregated ?uids di?ering
in density values, and means operatiyely con
with said source of supply, in series relation, and , nected with a subsequent segregator for opening
means for forcing ?uid from said source of sup a or closing said circuitous path in accordance with
ply through said segregators and return in a a predetermined change in the quantity of supply
circuitous path, each segregatordevice serving
of the ?uid to be segregated thereby and in ac
to segregate from said supplied ?uid, a ?uid of cordance with a predetermined change in' the
given density, said segregated ?uids differing in ' ?uid pressure in said segregator.
22, In a ?uid segregating system, a source of 40
40 density value, and means automatically to pre
vent the ?ow of the supplied ?uid through one ?uid supply, a segregator device for segregating
a ?uid of given density, a further segregator de
of said segregators when the ?uid of given den
vice i'or segregating a ?uid of given density dif
sity is being segregated thereby.
18. In a ?uid' segregating system, .a source of ferent in value than the density ‘of the ?uid to be
?uid supply, at least two ?uid segregating devices segregated by. said ?rst mentioned device, said
communicatively connected with one another and segregator devices being constructed and ar
with said source of supply, in series relation, and ranged such that the static pressure of the liquid
head in the latter segregator device is greater
means for forcing ?uid from said source of sup
ply through said segregators and return in a cir
than that of the former, suction pump means
cuitous path, each segregator device serving to communicatively connected at its input with said
segregate from said supplied ?uid, a ?uid of ?rst mentioned segregator device and at its out
given density, said segregated ?uidsdi?erlng in
put with said second'mentioned‘segregator de
density value, and means automatically to pre--,
vent the ?ow of the supplied ?uid through, one
of said segregators when the ?uid of given den
sity is being segregated thereby, pressure valve
vice for supplying ?uid from said source to said
segregator devices, means for automatically shut
ting of! the supply of ?uid to the second men— 55
tioned segregator device when the rate of supply
of the ?uid to be segregated by said ?rst men
tioned segregator exceeds a given rate of supply
thereof including ‘a suction controlled valve at
the inlet side of said pump, and means cooperat
» relief means normally preventing the ?ow of
?uid through said segregator when said ?uid is
being segregated thereby.
19. In a ?uid segregating system, a source of
fluid supply, at least two ?uid segregating devices 'ing with said second mentioned segregator for
communicatively connected with one another opening said valve by breaking the partial vac
~
and with said source of supply, in-series relation, uum when the pump is inoperative.
and means for forcing ?uid from said source of
‘
.
DAVID SANH‘RAN.
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