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Патент USA US2405442

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R. D. MAYO
AUXILIARY GASOLINE CONTAINER
I
Filed-Dec. 18, 1944- `
39
.../Í
Patented Aug. 6, 1946
' 2,405,442
UNITED vSTATES PAT ENT O FFl CE
A2,405,442
AUXILIARY GASOLINE CONTAINER
Robert D. .Mayo, Flint, JVl'ic'h.
Application 'December 18, 1944, SerialNo. 568,'754
12 Claims. (Cl. 259-60)
l
This invention relates to an auxiliary .gasoline
container or ‘tankandis primarily concerned with
a novel >construction of a 'gasoline fuel 'tank in
whichvthe fuel may :be mixed -with lubricant .in .a
2
in connection with the 'accompanying drawing,`
in which,
'
Fig. 1 is `a :side `eleva-tion of fthe auxiliary gaso
line fuel tank of `my invention, parts .being broken
ready land easy manner, Vand vfrom which 'the
away and fshown »in .sect-ion fora better disclosure
mixed fuel and lubricant :may be transferred :to
of structure.
'
the fuel containing tank of' an engine under dini#
Fig. '2 risa plan '-view.
cult conditions.
Fig. .3 is a partial vertical section and side Yele
One Place of use 'for 'the -auxiliary tank which
vatio'n of the compressed iair receiving injector
I have 'invented is in lconnection with the two 10 means used i-n 'accomplishing the intermixture of
cycle :engines of Voutboard motors on boats, lor
the vgasoline fuel and lubricant oil, «and
any .other engines of similar type which .are used
Fig. 4 is .fa fragmentary vhorizontal section sub
whether in conjunction with outboard >.motors or
stantially on the ¿plane of line .4_4 of Fig. 3.
otherwise. Also the tank -is of utility in connec
Like :reference characters .refer :to like parts
tion with motor cycle engines.
Normally with
outboard 'motors in which their fuel ytanks are
of relatively small capacity,‘the'filli1ng of the -‘tank
must at times be performed out on the water and
away from shore tand with the `chance `that `the
boat is far from stable, 'being pitched about by
waves or rising and falling with changes in the
surface conditions of 'the water. vThe entrance
inlet to the tank being small, ‘there are very strong
possibilities that the fuel attempted to be intro
duced into the tank >is spilled outside `of it over
the engine and -overwater and boa-t, the re-fuel
ing of the tank being difficult and with such
undesirable happenings. Also, with Vrtwo-*cycle
engines, the oil lubricant for the engine is mixed
in the .different ñgures of the drawing.
rl‘he main auxiliary tank of my invention, pref
erably of rectangular form, has >vertical sides Vand
ends I with -a bottom 2 :the intermediate portion
of which is presse-d downwardly .as indicated at
3. It is closed by a top 4. The tank is made of
sheet metal or equivalent :material .and all of
the part-'s welded, brazed, soldered or otherwise
permanently connected together. Adjacent 'one
end of 'the tank an :inlet neck 5 (Fig. 1) .is pro
~ vided for .entrance :of ’the gasoline fuel thereinto,
the .upper end `of the neck being closed by 'a clo
sure Icap ‘6 of :conventional structure.
Within .the main tank îI, an auxiliary container
having a barrel 1, preferably -of cylindrical form,
with the gasoline fuel and such -mixture -should 30 is located, being suspended from the underside of
be done before introduction into the fuel tank
the top -«l which at the upper -end of the container
for the engine. With my invention proper pro
'I has an opening ï8 Aassociated with which is a
portions of the gasoline fuel and of the oil to be
second inlet neck 9, the "upper »end being closed
interrnixed therewith may be regulated, and the
by :a ldetachable cap Ga like the cap A6. Said cap
mixture of the `oil and gasoline fuel very quickly 4 @a at its upper lside is provided witha bar Il) made
and easily performed. Such intermixture may
from vflat metal,“the end 'portions of 'which extend
be most expeditiously performed at a service sta
beyond opposite sides of the cap, one of said arms
tion where the gasoline fuel and oil are pur
in the closed position of the cap 6a extending over
chased, and my invention makes provision there
the cap '6, .as shown in Fig. -1. The other end
for._ But if, as occurs in some cases, the gasoline 40 portion’of the bar 'I 0 extends over the compressed
fuel and oil lubricant are 4purchased at a service
air entrance stem :as hereinafter described, pre
station and carried separately and later put in
venting the connection of an air hose thereto
the auxiliary tank of my invention, means is pro
except 'when the cap 6a is removed.
vided whereby such intermixture may be readily
The barrel 'I near its upper 'end has a plurality
performed manually. And final-ly, ywith theaux
of spaced >openings II through its sides around
iliary tank which I have provided the transfer
it. Itis closed at its lower end by a bottom I2
of its contents to the fuel tank of the motor on
located a distance above the depressed portion 3
a boat is accomplished irrespective of weather.
of the bottom 2 cf the main auxiliary tank. The
conditions without waste of fuel, spilling thereof,
bottom I2 has a central opening I3 through it
or scattering more or less over the boat or adja 50 below which is a disk valve I4 connected at the
cent water.
lower end of a vertical vrod Illa which extends
An understanding of the `invention for the
upwardly through the barrel and -through the
accomplishment .of the vends stated, as well as
top 4 and is engaged by the underside of the cap
others .not at this timespeciñcally enumerated,
6a, when it is secured in place to move the rod
may be had from the following description taken.
’ Maand the 'attached valve I4 to the lower 'open
2,405,442 ’
3
4
position shown in Fig. 1 against the force of a
coiled spring I5 located around the rod Ha and
extension 34 passing through said top 4 and 1o
cated centrally of the injector sleeve I 1 as shown
disposed between a foot bracket I5 and a disk
in Fig. 1.
In the upper end of the stem 32 a
conventional valve 35, such as is used with the
(not numbered) which is held by a pin passing
through the rod I4a as shown. When the cap 6a. 5 valve stems of tires, is mounted. The stem 32 and
its extension 34 have vertical passage there
is removed it is evident that the spring I5 under
through and upon applying the end of a com
compression lifts the valve I4 against the under
pressed air carrying hose to the upper end of a
side of the bottom I2 of the barrel 1 closing the
stem 32, compressed air passes through said stem
opening I3.
.
.
>
and from the lower end of its. extension 34 into
To one side of the upper end portion of the
barrel 1 an injector sleeve I 1 of thin metal is
vertically located and secured at its upper end
the injector sleeve I1, with the creation of avacu
to the lower side of the top 4 of the main tank. '
A tube I8 located mainly within' Vthe barrel 1 „
wardly through the pipe I8 and delivers it into
the main tank I below the lower end of the sleeve
extends from its lower open end, near the bot
tom I2 of the barrel, nearly to the upper end
thereof and then passes through a side ofthe
I1. Such attachment or connection of the outer
end of an air hose to the upper end of the stem
barrel and communicates with the _injector
sleeve I1'.
..
The container provided by the cylindrical bar
urn which draws liquid from the barrel 1 up
32 is permitted only when the adjacent end por
tion of the bar IB is out of the way, this being
done by removal of theucap 6a with an accom
20 panying closure of the opening I3 as previously
rel 1 with its bottom I2 Vis for the'reception of
described.
.
~
At the third side of the valve housing 26 a con
lubricatingvoil which is entered thereinto with the
duit 36, preferably of ñexible character, is secured
closure cap 6a removed and the opening I3-closed.
Said barrel 1 may be ñlled to the height of the
for leading to the tank of a motor which is to be
openings II and when thus iilled, and with the 25 supplied with the mixed gasoline and lubricat
ing oil. The second iiexible conduit 31 shown
tank I ñlled with gasoline to the same height,
is adapted to be detachably connected with the
the capacities of the tank I 'and the barrel 1 are
fuel tank of the motor at an upper portion there
such that the gasoline fuel and lubricant oil are
of to carry any overflow back tothe auxiliary
in .their proper‘proportions.
i i
~
'
tank I. AThe overflow conduit 31 is preferably
Spaced from the oil carrying cylindrical barrel
connected with a valve housing 38 in which a
1 a pump cylinder I9 is vertically positioned with
manually operable valve 39 is mounted to lbe
in the tank, its lower end being closed by a bot
moved to closed position normally, but opened for
tom 2U. At its upper end it extends through the
accomplishingits function of returning overiiow
top 4 and is equipped with a suitable upper end
closure. A piston rod 2I passes downwardly ‘ should the motor or engine tank be ñlled to full.
With the main auxiliary tank I filled with gaso
through the upper closure of the pump cylinder
line fuel to the openings I I, and with the smaller
I9 at its lower end having a valveless piston 22
container 1 iilled with the lubricating oil to the
secured and at its upper end provided with .a
handle 23' for manual reciprocation of the piston
in the barrel of the pump.'
A pipe 24 connects the lower ends ‘of the oil
container barrel 1 and the pump barrel I9. Said
pipe is supplied with a check valve 25 at the end
where it connects with the pump cylinder I9, so
that on the upward stroke vofthe piston 22 liquid
contents from the barrel 1 may be drawn into
cylinder I9 below the piston but on the down
stroke the check valve blocks its return.
Above the top 4 of the main auxiliary tank a
valve housing 26 of a `two-way character is lo
cated, having a three-way valve 21 mounted there
in and adapted to be turned to a diiïerent posi
tion about its vertical axis by a projecting handle
21a. A passage 28 is made diametrically through
the valve 21 (Fig. 4) connecting with which, and
at right angles thereto, is a branch passage 29.
A pipe 30 is connected with the valve housing 26'
at one side and leads downwardly into the main
tank and is connected at its lower end, through a
suitable union, with the lower end 'portion of the
barrel I9. On the downstroke of the piston 22
liquid contents drawn into the cylinder I9 is
forced outward through the conduit 30, providing
40
same level, at aservice station, >for example, the
hose from acompressed air tank normally used
for inflating tires maybe placed in operative
connection with the vupper -end- of the stem 32.
It is evident that in the filling the caps 6 and 6a
must be removed _and that the cap 8a must re-_
45. main separated for the operative connection of
the air hose with the upper end of stem 32. The
compressed air moving rapidly through the stem
32 and extension 34 and through the injector
sleeve I1 below post 34 will effect an emptying
50
ofthe oil into the body of the gasoline fuel until
all of the oil has been removed and delivered
into the gasoline and that such action may con
tinue as long as required, inasmuch as the volume ~
of liquid within the tank I increased by the> addi
55 tion of the cil lubricant will raise the level to
above theopenings II, through which there will
be an overflow of mixed gasoline and oil back into
the inner container 1 and a continuous mixing
and remixing may follow until a completelythor
60 ough homogeneous mixture is obtained. Prefer
ablythis will be the condition under which 'the
oil and gasoline are mixed together.
It is of course apparent also that if the level
of gasoline and with a comparative level of oil in
that the valve 21 isproperly located so‘that an
end of the passage 28 or theA outer'end -of the 65 its container, reaches only a part of the height of
passage 29 is in proper conjunction. ‘ A second'
check valve is provided in connection with the
lower end of the pipe 3i), permitting outward pas
sage of liquid from the cylinder I9 but blocking'
its return.
-
I
y
the barrel 1 and not to the openings I I, the oil will
be removed 'by suction and without overflow of
liquid into the barrel through the openingsV II.
There will however be a substantially complete
_ delivery of the lubricating oil to the gasoline fuel.
In the construction shown a lateral branch 3|"
from a vertical stem 32 connects with a second
side of the valve housing 26.»V vThe stem 32 is pro
And if it is desired to continue the intermixture
after the oil has all been removed from its con
tainer, the upper end of the'rod Mal may be»
vided with agflange 33 resting upongand secured
to the top 4,> ‘and has a downwardly extending
pressed upon to unseat the valve I4, wherefore
i the> gasoline containing the oil lubricant will flow
5
2,405,442
6
through the opening I3 until the same level is
the caps 6a and 6 and ñll the respective contain
ing spaces provided for the oil and the gasoline
and the proper portions Will be maintained under
reached within the barrel 'I as in the main tank
l, and the compressed air may be continued in
passage with the valve I4 held in its down posi
such conditions.
tion as long as may be desired for completing Gl
Filling of the motor tank from this auxiliary
the intermixture.
tank not only results in saving of what has been
As previously described pumping the oil out
previously wasted but there is an -avoidance of the
ward through the conveying conduit 36 may be
danger of water getting mixed with the fuel when
done by operating the pump piston through the
filling the motor tank in the usual manner. The
handle at 23, ñrst turning the valve 2l to a posi 10 replenishment of the motor tank is substantially
tion in which the passage 28 is in connection with
as easy in darkness as at any other time; and
the pipe 30 and conduit 36; and after the re
fire haz-ard is greatly reduced if not entirely lim
quired amount of mixed gasoline fuel and lubri
ited, such for example the careless and dangerous
cating oil has been conveyed to the motor tank
habit of some of pouring gasoline into the motor
the valve is to be closed.
p
tank while smoking. It is also evident, With the
The construction described is complete and
invention which I have made, that a standing up
fully operable and a construction thus far de
in a boat to pour the fuel into the motor tank,
scribed may be made to accomplish the functions
which many persons do is naturally not done.
and results stated with an elimination of the lat
While of great utility in the refueling .of fuel
eral connection 3l and of the branch passage 29 20 tanks ofy outboard motors, the invention is also of
in the valve 2l. However the intermixture of the
utility for the proper mixture of gasoline and
gasoline fuel and lubricating oil may be accom
lubricating oil in connection with any two-cycle
plished by operation of the pump under condi
engine, one example of which has been previ
tions when compressed air is not available. In
ously mentioned, namely, the two-cycle engines
such case with the gasoline fuel in the main tank
used with motorcycles; and of course it is equally
I and the oil in the container 'I in their proper
true for any two-cycle engines irrespective of its
proportions to any height desired in the tank,
place of use.
with the cap 6a in place depressing valve I 4 to
The invention is defined in the appended claims
open the opening at I3, the valve 2l is turned to
and is to be considered comprehensive of all forms
connect the outlet pipe 30 of the pump with the \ of structure coming within their scope.
branch connection 3|, this being done by turning
the branch passage 29 of valve 2l in connection
with the branch at 3 I. Upon reciprocation of the
piston 22 oil is drawn from the container l and
l. In a construction of the class described, a
main receptacle having a bottom, vertical sides
and ends and a top closing the upper end of the
main receptacle, a secondary receptacle of smaller
capacity secured at its upper end to the under
side of said top and suspended therefrom with its
bottom located above the bottom of the main re
pumped by the pump I9, passing through the
branch 3| and stem 32 and thence flowing out of
the lower end of the extension 34 into the gaso
line fuel. The gasoline fuel will iiow through the
opening at I3, which is uncovered under such
ceptacle, said bottom of the secondary receptacle
conditions, and intermingle with the oil t0 be 40 having an opening therethrough, a valve located
pumped back into the normal gasoline holding
below the bottom of the secondary receptacle
portion of the tank and such pumping _continue
adapted in upper position to close said opening a
until a thorough interrnixture has been attained.
vertical rod connected to the valve and extending
Of course the cap 6a may be removed While such
through said secondary receptacle and through
pumping is done in which case if the tank is not
the top of the main receptacle, filling inlets con
full to the level of the openings at I I, the oil first
nected to said top one over said secondary recep
will be pumped out of the container at ‘I and
tacle, through which said receptacles may be sup- »
A delivered into the gasoline, while if the level of
plied with liquid, closure caps for said i’illing in“
fuel and oil reaches such openings at I I there
lets, the closure cap for the inlet to the second
will be a continuous overflow so that the pumping
ary receptacle bearing against the upper end of
may continue indeñnitely or as long as desired.
the rod to move said valve to a lower position,
Where the oil and gasoline are at a lower level,
spring means normally elevating the valve to
for a continuance of pumping after the oil has
closing position when free to do so, Aa conducting
all nrst been withdrawn from its container l,
pipe extending through a side of said secondary
either the cap 5a is replaced or the valve H5 5:3 receptacle near the upper end thereof extending
unseated by a manual depression thereof. Such
downwardly substantially to its bottom, and
further ability to intermix the gasoline fuel and
means for withdrawing liquid through said con
lubricating oil by manual operation of the pump
ducting pipe from the secondary receptacle and
is desirable where facilities are not at hand for
delivering it for mixture with liquid in the main
forcing compressed air through the stem at 32.
receptacle.
The tank construction described is very practi
2. A construction as delined in claim 1, said
cal and satisfactory in operation. In the con
secondary receptacle near its upper end having
struction the top 4 of the tank carries all of the
an opening through a side thereof.
interior construction within the main tank, there
3, In a construction as defined, a main tank
fore the assembly is readily performed, the final
step being the placing of the top with the parts
attached in place and securing it to the sides and
ends I of the main tank. The structure is usable
under substantially all conditions with an assur
ance that the proper proportions of gasoline fuel
and lubricating oil will be maintained. This fol
lows whether initially the tank is completely
empty of gasoline and oil, or is partly full. For
example, if partly full of previously intermixed
gasoline and oil, it is merely necessary to remove
C.
receptacle having a bottom, upwardly extending
sides and ends and a top closing said tank at
its upper end, a secondary tank receptacle con
nested to and suspended from the top within
the main tank having e, bottom located above
the bottom of said main tank, separate inlet
means for iilling said main and said secondary
_ tanks each with a liquid differing from the other,
and means mounted on and above the top of said
main tank and extending therethrough for the
passage of compressed -air into said main tank
2,405,442
7’
combined with ejector means associated therewith
and extending into the secondary tank for with
drawing liquid from the secondary tank and de
livering it to the liquid in the main tank.
4. A construction as defined in claim 3, com
bined with means preventing the passage of com
pressed air through said compressed air carrying
means except when free communication is pro
vided between the interior of said main tank and
the outside atmosphere.
5. A construction as defined in claim 3, said
secondary tank having openings through its sides
near its upper end, said inlet means therefor
having a removable closure cap, an arm extend
rel, means for reciprocating the piston from above
the tank, inlet means for introducing a liquid
into said secondary tank, a pipe connection be
tween the bottoms 0f said secondary tank and
barrel, a pipe outlet connected at one end to
said barrel immediately above the bottom thereof
having means for emptying into the main tank,
said Vsecondary tank above the bottom having
openings through its sides.
9. A construction as described in claim 8, the
bottom of the secondary tank having an opening
therethrough, a spring actuated valve normally
closing said opening and means for moving said
valve away from said opening, as specified.
ing laterally therefrom which when the cap is at
10. In a construction as described, a main tank
for receiving liquid having, a top, a secondaryy
tank within the main tank suspended from said
top, said secondary tank having an opening in
through when said closure cap is in secured oper-'
ative position.
the lower part thereof for communication be
6. In a construction as described, a main tank 20 tween said tanks, a spring actuated valve closing
said opening, means for moving the valve to open
having a bottom, generally vertical sides and
position, a pump having a barrel within the tank
ends and a top closing said main tank at its upper
suspended from the top, a valveless piston with
end, said main tank having liquid entrance means
in said barrel, a pipe connection between the 10W
thereto and a removable closure cap for sealing
er ends of said secondary tank and barrel and an
said entrance means, a secondary smaller tank
outlet pipe connected at one end to the lower
located within the main tank and connected to
portion of the barrel below the lowermost posi
and suspended from the top and having a bottom
with an opening therethrough, said bottom
tion of said piston to deliver liquid pumped into
the main tank, said pipe connection and outlet
located above the bottom of the main tank and
said top having an opening at the upper end of 30 pipe having check valve means permitting flow
of liquid into the barrel pump on upstroke of the
said secondary tank, the sides of said second
ary tank near the upper end thereof having open
piston and flow of liquid out of said barrel on
ings therethrough, said secondary tank being
the downstroke thereof and preventing opposite
adapted to receiver liquid through said opening in
flows in said pipe connectionand outlet on the
downstroke of the piston and upstroke thereof,
the top of the main tank, a removable closure
respectively.
for said opening, a rod extending through said
opening in the bottom of the secondary tank and
11. In a construction of the class described, a
through the top of the main tank, spring means
main- tank having a bottom, sides and ends and a
normally elevating said rod, closure means for
top, closable inlet means on said top for enter
covering said opening in the top of the main 40 ing liquid intothe main tank, a secondary tank
tank through which the secondary tank receives
within and suspended from said top having its
liquid to bear against the upper end of said rod
bottom located above the bottom of the main
tached extends over said compressed air passage
mean-s, whereby fy air cannot be passed there
and move it downwardly when said closure means
is in place, a valve at the 1ower end of the rod
below the bottom of the secondary tank, an in
tank, closable inlet means therefor, a vertical
` jector sleeve connected to the under side of the
of the main tank, a pipe connected at one end to
said sleeve between its upper and lower ends
top of the main tank and depending therefrom,
a pipe located within the secondary tank hav
disposed injector sleeve connected to and extend
ing downwardly from the under side of the top
and extending into said secondary tank substan
tially to the bottom thereof, a pump barrel located
pipe >extending vertically within the secondary 50 within said main tank and suspended from said
tank and passing through a Side thereof near its
top, a valvelessV piston in the barrel, means for
upper end and communicating with said injector
reciprocating the piston from above the tank, a
sleeve, and a compressed air passing stem mount
pipe connection between the lower ends of said
ed upon and having a lower portion passing
secondary tank and barrel, a stem having a pas
sage therethrough mounted on and extending
through the top of the main tank and an upper
ing an open end near the bottom thereof, said
portion extending thereabove, said lower portion
being located within said injector sleeve and
terminating above the lower end of said sleeve.
7. A construction as defined in claim 6, and
partly through said top and into said injector
sleeve, its lower end terminating above the lower
end of said sleeve, said stem having a lateral
branch, a three-way valve housing connected
movable guard means extending over the upper 60 to said branch, a two-way valve therein, a pipe
end of said compressed air passing stem, said
connected at one end at one side of the valve
guard means when in such position preventing
housing and at its opposite end to the lower por
access to the stem for passage of compressed air
tion of said barrel, an outlet conduit connected
and when moved to permit such access permitting
at the opposite side of said valve housing, said
the passage of aix` from within the main tank to 65 secondary tank having openings therethrough
providing communication between the interiors
the outside.
of said main and secondary tanks.
8. In a construction of the class described, a
main tank having a bottom, sides and ends and
l2'. The elements in combination deñned in
a top, closable inlet means for introducing liquid
claim l1, one of said openings in the secondary
tank being in the bottom thereof, a spring actu
into said main tank, a secondary tank within the
main tank connected to the top and suspended
ated valve normally closing said opening and
therefrom, having a bottom located above the
manual means accessible from above the tank
bottom of the main tank, a pump barrel located
for moving said valve to open position.
within said main tank and suspended from the
ROBERT D. MAYO.
top thereof, a valveless piston in said pump bar
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