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Патент USA US3032089

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May 1, 1962
Filed Oct. 25, 1958
Patented May 1, 1962
tion to a supply tank such as utilized on diesel locomo
Constantine Lisciani, Chicago, llL, assignor to The Pro
tectoseal Company, Chicago, Ill., a corporation of
Filed Oct. 23, 1958, Ser. No. 769,231
2 Claims. (Cl. 14l—95)
tives and the like; and
FIG. 2 is a semi-diagrammatic ?gure of the electrical
circuit and actuating structure.
A further object of the invention is the production of
such a control device which may be provided with means
for eliminating leakage or spillage from the tank connect
ing ?ttings when the device is not in use.
The invention relates generally to liquid supply de
The present invention contemplates the use of a con
vices, and more particularly to a device for automatically 10 trol structure winch is adapted to be actuated by the
controlling the flow of liquid, as for example, into a tank
liquid in the tank being ?lled when the level of the liquid
or the like.
reaches a predetermined height, which is so selected that
The invention is particularly directed to ?uid supply
the control mechanism will be actuated to shut off the
systems involving high flow rates in the discharge line.
supply of liquid before the tank has over?owed. Thus
Tanks such as those used on diesel locomotives and the 15 the only modi?cation of existing tanks would be to form
like are often ?lled under manual control from high
a suitable discharge opening in the side of the tank which
velocity discharge supply lines in an effort to cut down
of course could be readily accomplished by means of a
the ?lling time involved. For example, high speed pas
drilling operation, following which a suitable petcock ?t
senger trains having very close schedules endeavor to cut
ting could be threaded into the tank side wall.
lost time due to stops, refuelings, etc., to a minimum, 20
Referring to the drawing, and more particularly to
and consequently e?orts are made to reduce refueling
FIG. 1, the reference numeral 1 indicates generally a
time to the bare essential. This in turn has necessitated
control device constructed in accordance with the inven
refueling from supply lines having highly accelerated dis
tion, and operatively connected to a tank 2 which, for ex
charge rates in an e?ort to cut down on the time required
ample, may be a fuel tank on a diesel locomotive or the
to ?ll the fuel tanks. Many of these discharge lines have 25 like, and having a ?ller pipe 3 terminating at its free end
utilized automatic cut-oil devices of the type used on
gasoline pumps and the like, whereby a valve member is
in a ?ller opening 41, which usually is at the bottom of a
well member 5 mounted on the side wall 6 of the loco
Positioned in the ?ller pipe 3 is a suitable connector‘ ?t
tripped when the liquid level reaches the lower end of the
supply line spout. However, in the case of high velocity
discharge, the tank will over?ow before the automatic 30 ting indicated generally by the numeral 7, having a ?re
structure can fully shut off the ?ow of fuel. Another
possible solution would be to a?ix the supply line to the
tank in a ?uid tight relation and shut the supply off when
the tank over?ows through a suitable over?ow ?tting.
Again in the case of high velocity flow, a considerable
amount of fuel would be lost due to the high ?ow which
would take place from the time the over?ow commenced
and was ascertained by the operator to the time required
to effect a stoppage of the fuel flow. Likewise, in such
case, upon disconnection of the supply ?tting from the
tank, an additional over?ow would be lost through the
?ller opening.
The present invention therefore has among its objects
the production of an automatic flow control device for
fuel supply lines and the like involving high discharge
liquid velocities ‘which is so designed that the liquid ?ow
will be stopped before the tank has reached an over?ow
state, thereby completely eliminating over?ow waste and
the like, as well as removing a potential ?re hazard as a
result of spilled fuel.
Another object of the invention is the production of
such a liquid control structure which does not require ex
tensive alteration of existing tank structure and the like,
so that existing tanks may be readily modi?ed to permit
screen 8 and terminating at its outer end in a ?tting 9
adapted to dctachably receive a cooperable connector v?t
ting 11, such as disclosed and claimed in my co-pending
application Serial No. 375,508, ?led August 20, 1953,
now United States Patent 2,994,352 granted September
15, 1959, carried on a supply hose or conduit 12.
connector ?ttings 9 and 11 may, for example, be of the
quick change type requiring merely a partial interlock
ing movement therebetween to connect the two in operat
ing relation.
The control device 1 comprises a supporting stand or
structure 13 illustrated as having a top or upper frame
structure 14, four legs 15, only two of which appear in
the drawing, the leg structures being re-enforced by lower
laterally extending brace members 16. The lower end of
the legs 15 may be provided with suitable casters or
wheels 17 by means of which the device may be moved
about. Suitably carried by the frame structure 13, as for
example on a cross member 18 extending between op
positely disposed brace members 16, is a valve indicated
by the numeral 19, which is illustrated as being of a
manual reset electrically tripped type which in the pres
ent instance is adapted to be actuated to an open posi
titon by manual operation and closed upon the energiza
use of the present invention therewith.
55 tion of a suitable solenoid, the number 21 indicating the
A further object of the invention is the production of
manual actuatable handle of the valve 19.
such a control structure which is comparatively simple
The inlet side of the valve member 19 is adapted to be
in construction, fool-proof in operation and very e?icient
operatively connected by a line 22 to a ?uid supply, while
for the purposes intended.
the outlet side of the valve is operatively connected to
A further object of the invention is the production of 60 the line 12 which is illustrated as being of a ?exible con
such a control device which may be readily designed as a
struction to permit ready connection with the ?ller fitting
portable unit, enabling its use over a predetermined area,
so that in the case of locomotive fuel tanks it may be
on the tank to be ?lled.
Also mounted on the supporting structure 13 is a
switch mechanism indicated generally by the numeral 25,
Many other objects and advantages of the present in 65 having a ?oat chamber 23 in which is positioned a ?oat
24 and operable, upon the rise of the liquid in the ?oat
vention will be apparent to those skilled in the art from
chamber, to actuate a switch 25’. The details of the par
the disclosure herein given.
ticular switch mechanism forms no part of the present in
In the drawings, wherein like reference characters indi
moved from one track to another within a desired range.
vention and any one of a number of commercially procur
cate like or corresponding parts:
able devices may be utilized. For example, the particu
FIG. 1 is a side elevational view of a control structure
lar mechanism illustrated is of a type known as a “mag
embodying the present invention, illustrating its applica
netrol” utilizing a magnetic connection eliminates any di~
rect mechanical or electrical linkages between the ?oat
chamberv and the switch mechanism.
The ?oat chamber 23 is adapted to be operatively con
nected with the tank 2 by a suitable ?tting indicated gen
erally by the numeral 26 illustrated as being a petcock
having an actuating handle 27 and adapted to be detach
ably connected to a small conduit or line 28 operatively
connected through a T 29 and nipple 31 to the ?oat
chamber 23. To permit drainage of the ?oat chamber
23 a petcock 32, is operatively connected to the T 29 10
drained therefrom by opening the etcock 32 to permit
the liquid to ?ow into the drain member 35 and into
the drain pipe 36.
Under normal conditions of operation and use it would
appear desirable to utilize a ?tting for the connection of
the line 2% to the tank 2 that is of the quick detachable
type, with the ?tting permanently attached to the tank
being self-closing upon disconnection of the cooperable
?tting on the line 23, and automatically opened upon
engagement between the ?ttings, thereby eliminating any
and extending downwardly from the petcock 32 is piping
possibility of a failure to open a manual valve which would
33 having an outlet opening 34 adapted to discharge into
a- drain, ?tting 35, the latter in turn being connected to
prevent proper operation of the device. Likewise the
valve 32 preferably is of a self-closing type that must be
a drain pipe 36 through which liquid may return to the
manually held open, thereby eliminating possible opera
supply tank from which it was originally drawn through 15 tional failure resulting from an open valve Which would
permit liquid to ?ow to the drain instead of the ?oat
the supply pipe 22. Also connected to the piping 33 is
an‘ over?ow pipe 34a connected to the switch mechanism
It will be noted that the present invention provides
25 at the top of the ?oat chamber 23 to permit over
a relatively simple yet fool-proof structure for ?lling oil
?ow into the drain ?tting in the event the ?oat chamber
tanks on diesel locomotives and the like at very high
becomes completely ?lled with liquid. The drain pipe
liquid velocity without danger of over?owing the tank
36 is also provided with a terminal ?tting 37 into which
and consequent spillage. As illustrated in dotted lines
the coupling or connector member 11 may be inserted so
and indicated by the numeral 44, the ?tting 37 may be
that any drainage from the conduit 12 may ?ow back
into the storage tank.
provided with a suitable ?re screen to eliminate any ?re
Referring to FIG. 2, the valve 19 is provided with an 25 hazard by means of the pipe 36.
actuating winding 38 which when energized is operable to
Having thus described my invention, it will be obvious
close the valve 19 and shut oh‘ the ?ow of liquid from
that various immaterial modi?cations may be made in the
the supply line'22 into the discharge line 12.
same without departing from the spirit of my invention;
The winding 38 is operatively connected in series with
hence I do not wish to be understood as limiting myself
an indicating lamp 39 and switch 25' to a suitable power 30 to the exact form, construction, arrangement and com
line 41 so that when the vswitch 25 is closed the. wind
bination of parts herein shown and described, or uses
ing 38 of the valve 12 is energized and the valve is closed,
the lamp 39 indicating at such time that the tank is full
What I claim as new and desire to secure by Letters
and the valve has been shut off.
Patent is:
To enable use of the present invention on existing loco 35
1. In a liquid supply device for ?lling locomotive fuel
motive structures and tanks therefor, it is only necessary
tanks and the like having a filler opening extending on a
to drill a‘small hole 42 in anybody structure of the loco
motive and drill and tap ‘a hole 43 into the side wall of
generally horizontal axis, the combination of a Valve in
cluding manually actuatable means for opening the same
the tank 2 to receive a ?tting such as the petcock 26
and electrically actuated means for closing the same, the
which is then screwed into the hole 43 where it may form 40 inlet side of said valve being disposed for operative con
a permanent part of the tank structure.
nection to a liquid supply line, a filler conduit operatively
In use the stand 1 is wheeled up to the locomotive Su?
connected to the discharge side of said valve and having
ciently close to enable the line 12 and over?ow line 28
means at its free end for engagement with the horizon
to be connected to the ?ller opening 3 and the petcock
tally extending ?ller ?tting of the tank to be ?lled, a switch
2.6, respectively. As, the ?uid such as oil in the supply 45 structure, supporting means for said valve and switch
line 22 is under pressure, the operator, following connec
structure, the switch structure including operating switch
tion of the line, merely actuates the handle 21 to manual
contacts associated with an electric circuit including the
ly open the valve and start the ?ow of liquid into the
closing means for said valve, and a vertically movable
tank. At the same time the operator opens the petcock
?oat chamber operatively positioned in a ?oat chamber
26 by means of the handle 27 so that when the level of oil
formed in said switch structure, said ?oat upon prede
reaches the petcock 26, oil will ?ow through the line 23
termined rise thereof upon the entry of liquid into the
and piping, 31 into the ?oat chamber and when the oil
chamber being operative to actuate said operating switch
level in the ?oat chamber has reached a predetermined
contacts to etfect actuation of said valve closing means
height, the switch 25' will be actuated to energize the
and closure of said valve, a conduit communicating with
winding 38, shutting the valve 19 and lighting the lamp 55 said ?oat chamber and constructed for detachable con
39, indicating that the tank is ?lled and that the valve
nection at an effective predetermined level to such a tank
has been shut olf. The petcock 26 is installed at such a
to be ?lled, whereby upon liquid in the tank reaching
height with respect to the overall height of the tank that
such level liquid may ?ow to said ?oat chamber, said
the time required for oil to flow through the petcock into
supporting means formed as a portable unit including
the ?oat chamber 23 and actuate the switch 25' will be
ground-engaging wheels to facilitate movement thereof for
less than the time to ?ll the tank 2 to over?ow, the speci?c
operatively positioning alongside of the locomotive fuel
relation being predetermined to insure ?lling of the tank
tank to be operatively connected to the ?ller opening
to the desired height. In the event oil should ?ll the ?oat
thereof, and means operatively associated with and con
chamber 23 to over?owing, the excess may return to the
supply tank through the line 34, drain 3S and drain
pipe 36.
I Following ?lling of the tank, the ?tting 11 is connected
from the ?tting 9 and the line 23 disconnected from the
trolled by said operating switch contacts for visually in
65 dicating when said valve is actuated to a closed position
upon the ?lling of the locomotive fuel tank to which it is
operatively connected.
2. In a liquid supply device for ?lling locomotive fuel
tanks and the like having a ?ller opening extending on a
handle 27. Following disconnection of the line 12 the
?tting 11 is then inserted into the cooperable ?tting 37 70 generally horizontal axis, the combination of a valve in
cluding manually actuatable means for opening the same
on the drain pipe 36 so that any excess oil may return to
and electrically actuated means for closing the same, the
the supply tank and in like manner the line 28 may be
inlet of said valve being disposed for operative connection
operatively connected to the ?tting 35 as indicated in
petcock 26, the latter being again closed by the petcock
dotted lines to permit any oil therein to drain into the
to a liquid supply line, a ?ller conduit having one end
pipe 36. The liquid in the. ?oat chamber 23 may be 7 CR thereof operatively connected to the discharge side of;
said valve and a free end having means for engagement
with the horizontally extending ?ller ?tting of the tank
to be ?lled, a supporting means for said valve, a switch
structure, supporting means for said switch structure, the
her having an opening in the bottom thereof to which
said last-mentioned conduit is operatively connected, a
drain ?tting including a valve operatively connected to
said opening for controlling drainage of said float charm
latter including operating switch contacts associated with 5 her to said return line, and an over?ow line from the
an electric circuit including the closing means for said
upper portion of said ?oat chamber to said return line for
valve, and a vertically movable ?oat member operatively
returning over?ow from said ?oat chamber to said re
positioned in a ?oat chamber formed in said switch struc
ture, said ?oat upon predetermined rise thereof upon entry
of a liquid into the chamber being operative to actuate 10
said operating switch contacts to eitect actuation of said
valve closing means and closure of said valve, a conduit
communicating at one end with said ?oat chamber and
constructed for detachable connection with the free end
thereof at an eifective predetermined level to such a tank 15
to be ?lled, whereby upon liquid in the tank reaching such
level liquid may flow to said ?oat chamber, a return line
adapted for connecting to the liquid supply, said return
line comprising means adapted to receive the free ends
of said ?ller and ?oat chamber conduits, said ?oat cham 20
turn line.
References Cited in the ?le of this patent
Webber et al. _________ __ Dec. 5, 1865
Franc et a1. ___________ .. Dec. 25, 1900
Hardwick ____________ __ June 8, 1909
Edwinson ____________ .._ Dec. 8, 1931
Ripley _______________ ._ Apr. 1, 1958
Bisgard et al. ________ __ Jan. 20, 1959
Cavett et a1 ___________ __ Aug. 25, 1959
Piquerez ____________ __ Oct. 31, 1950
Samarin _____________ __ Dec. 8, 1953
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