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Nov. 26, 1946.
I
E. B. CHAMBERLAIN ET AL
2,411,505
THEFT PROOF FILL PIPE CLOSURE
Filed Jan. 11, 1945
56. '3 I
�537 M Kozme'
�1 5 Omnazzmu
INVENTOR.
@WMM
Patented Nov. 26.,? 1946
2,411,505
UNITED STATESv2,411,505PATENT * oFFics
THEFT-PROOF FILL PIPE CLOSURE
Earl B. Chamberlain, Fort Wayne, and Robert? M?.
Y
Kolt'er, Decatur, Ind.
Application January 11, 1945, SerialNo. 572,330
5 Claims. (01. 22'0~?~s6>
2
? This invention relates to a theft proof ?ll pipe _
whichqis usually a straight-sided or cylindrical
closure for automobiles. More especially, it re
lates to a ?ll pipe closure which. does not utilize
tube. The tube isusually ?anged at3andturined
inwardly asat 4 to form a sealing surface 5} The
a lock of any of?the usual types.
?ange is usually notched in two diametrically 0p
posed places? 1' to receive locking projectionson
,
Numerous attempts have. been heretofore
made to. prevent the removal of gasoline from
automobile tanks through the ?ll pipe of such
the usual ?ll pipe cap (not shown).
tanks, either by siphoning, pumping, or, other
ring- . 9' to which is ?xed an annular gasket l l
,
The ?ll pipe closure comprises an annular
methods. Usually these devices take the form
which is adaptedto engage the?ll pipe surface 5.
of a??ll cap which is removable from the ?ll pipe, 10 To the inner periphery of ?the ringv 971s ?xedr as by
butis locked in position? b?y?a key-operated lock.
?welding, or in any other suitable manner, a stirThese devices are often inconvenient in that
rup l3, which has a circular central plate or baf-�
the keys theretoiare- not availablewhen required.
?e l5, provided with?a plurality, of perforations
Sometimes, water accumulates in the locks? and
l6, and two upwardly extending arms I?! which
freezes. Frequently, the caps are not replaced 15" are ?xed at their free ends to the ring... The arms
on the?ll pipe after ?lling an'd'become lost;
extend substantially at right angles to the baiile.~
An object "of the invention is to provide a clo
The arms I? are slightly less in width ?than the
sure which, once it is installed, will never? be re
notches 1 and are spaced from each? other so
that the distancefrom the exterior surface .of
Another object of the'invention is to provide a 20' one arm to that of'the other is slightly less than
closure which is easily installed;
,
the distance from'theinner edge ofv one notch to
Yet another object of. the invention is tofpro
that" of the other. Thus the notches will readily
vide a closure which opens inwardly in response
receive? the arms and yet will hold the arms and
to the insertion of a dispensing nozzle._
the closure assembly as? a whole against-rotation
It is another objector the'invention to provide '25 in the ?ll pipe. ,,
,
,
a closure which returns automatically to the?
Aprojection I9- i'spuhched from each of the
closed position as soon as the dispensing nozzle
arms ?l1 and projects upwardlyv and-outwardly.
is vwithdrawn.
'
The distance'acr'oss the outer ends of the projec
Another object of the invention is to'provide'af
tions is? greater than the distance between the
?ll pipe closure which will accept liquid at sub? 30 edges of ?the notches ?I, so that'when the device
stantially the normal rate of from 12 to 15 gal-v
is in' position in the ?ll pipe, the ends of the pro
Ions-per minute and yet will prevent? the insere.
jections will? engage. the ?anges 5 and preventv
tion of a tube or pipeof any ?substantial size.
withdrawal of the assembly. The projections are
Still another'object?of the invention is to'pro
sprungli'nwardly'by theedges of the notches dur
moved.
?
'_
I
vide a closure which is not" removable after in
stallation.
35 ing insertion.
A further object of the invention is? to provide
a ?ll pipe closure which prevents the insertion?
?xed? in a central'open?ing 23 of the ba??le l5. A
stem 25 is slidably, mounted in the opening 21 of
the guide? and screwed'or otherwise ?xed to the
of ?means forremovingliquid? from the associat
ed tank.
v
,
These and other objects'will become'apparent
.
A cylindrical guide 2| isstaked or otherwise
v
40 upper end of theistem'is the closure member 29.
A coiled compression spring ?3| surrounds the
from a study, of this speci?cation and the draw
ing?which is'attached hereto and forms a part
guideand'stem and bears atone end on the baillev
I5 andat?th'e other on the undersidefof the. .clo->
hereof in
sure meinbefZl-T;
which?
-
?
_
Figure 1 is a vertical sectional view of the ?ll 45
pipe and the ?ll pipe closure taken substantial
ly on the line |?l of Figure 2.
_
Figure 2 is a view taken from the bottom of
Figure 1 showing the perforated portion of the
stirrup.
v
-
' member 29 so that the latter may be forced
downwardly between the arms.
'
A cover 33 is provided with an opening 35
50 which is smaller in diameter than the closure
Figure 3 is a horizontal view, partly in section
and partly in plan, taken on the line 3--3 of Fig
member 29. The cover is bowed outwardly at 31
to provide a slanting, curved surface which will
assist in shedding water and which will present
.ure 1.
Referring now to Figure 1, the numeral I rep
. resentsthe ?lfpipe?ofrthe usual automobilel;w
?
The distance between the inner surfaces of the
arms is greater than the maximum diameter of
in
a pleasing appearance.
'
W. Thetgouterz periphery or the coverqis. crimped
-
I
2,411,505
3
about the periphery of the ring 9 and gasket II
at 39 to hold them securely in place. The cover
is then ?anged inwardly and downwardly at M
and extends below the upper end of the ?ll pipe
to prevent water from running from the cap
onto the surface 5.
The gasket II is preferably made of relatively
thick and resilient material such as cork or syn
thetic rubber so that the gasket willbe, compressed and ?heldcompressed by the?, engagement
of the projections l9 and the ?ange 3 of the ?ll
pipe.
4
said notches, a ba?le supported by said arms trans?
versely of said pipe to prevent the insertion of
liquid removing means, a cap ?xed to said sup
port and having a ?ll opening, a closure, said arms
being disposed to guide said closure, guide means
in said ba?le for said closure, and yieldable means
for urging said closure into closing position with
respect to said ?ll opening.
3.~The combination with a fill ,pipe having an
end flange-provided with? opposed znotches, a
support comprising an element adapted to rest
upon the outer side of the ?ange, arms ?xed to
and depending from said element and passing
through said notches, yieldable means projecting
To install the closure, the usual ?ll pipe cap is. 15 outwardly and upwardly from the outer sides
Operation
removed and the assembly described above/is
of said arms for engaging the inner side of said
entered in the ?ll pipe with the arms ll riding ?
?ange to centralize the support in the pipe and
to prevent withdrawal of the support, a ba?le
in the notches ?I of the ?llpipe ?ange 3. The
supported by said arms transversely of said pipe
assembly is then forced downwardly so that the
projections l9 are forced inwardly. The gasket 20 to prevent the insertion of liquid removing means,
a cap ?xed to said support and having a ?ll open
is compressed until the projections clear the
?ange, whereupon they spring radially outwardly
- ing, a closure, guide means in said battle for said
closure, and yieldablev means for urging said
again under the ?ange 3 to hold the gasket com
closure into closing position with respect to said
pressed and to hold the assembly in the ?ll pipe.
When the tank is to be ?lled, the dispensing 25 ?ll opening.
nozzle is placed on the closure member 29 and
force is applied thereto to depress it against the
4. The combination with a ?ll pipe having an
end ?ange provided with opposed notches, a
support comprising an element adapted to rest
upon the outerside of the ?ange, arms ?xed to
and depending from 'said element and passing
force of the spring 3i. Preferably the closure
member should be depressed all the Way. When
the usual nozzle valve is opened, the gasoline flows
through said notches, outwardly directed spring
outwardly and downwardly around the bai?e [5
?ngers on said arms, adapted to engage said end
into the tank. Some of the liquid also flows
flange and side Walls to prevent withdrawal of
through the holes [6.
the support from and to centralize said support
When the nozzle is withdrawn, the spring 3|,
acting on the closure member, forces it upward 35 in said pipe, a baf?e supported by said arms trans
versely of said pipe to prevent the insertion of
until it contacts the cap 33 and closes the pipe.
liquid removing means, a cap ?xed ,to said sup
The closure member thus prevents the entry of
port and having a ?llopening, a closure, guide
dirt, water or other foreign matter.
?
means in said ba?ie for said closure, yieldable
It is obvious that various changes may be made
in the form, structure and arrangement of parts 40 means for urging said closure into closing posi
tion with respect to said ?ll opening, said arms
without departing from the spirit of the inven
being constructed and arranged to serve as addi
tion. Accordingly, applicants do not desire to
tional guide means for said closure.
be limited to the speci?c embodiment disclosed
5. The combination with a fill pipe having an
herein primarily for purposes of illustration; but
end ?ange provided with opposed notches, a sup
instead, they desire protection falling fairly within
port comprising an annular element and a gasket
the scope of the appended claims.
adapted to rest upon the outer side of the ?ange,
What we claim to be new and desire to protect
arms ?xed to and depending from said element
by Letters Patent ?of the United States is:
and passing through said notches, outwardly di
1. The combination with a ?ll pipe having an
rected spring ?ngers on said arms constructed
end ?ange provided with opposed notches, a
and arranged'to engage said ?ange to hold said
support comprising an element adapted to rest
support against withdrawal from the pipe, to
upon the outer side of the ?ange, arms ?xed to
hold said gasket compressed and to centralize
and depending from said element and passing
said support, a ba??le supported by said arms trans
through said notches, yieldable means projecting
outwardly and upwardly from the outer sides of 55 versely of said pipe to prevent the insertion of
liquid removing means, a cap crimped aboutv
said arms for engaging the inner side of said ?ange
and supported on said element, said cap having
to prevent withdrawal of the support, and a baf?e
a? ?ll opening, closure means, guide means. in
supported by said arms transversely of said pipe
said bai'lie for said closure and yieldable means
to prevent the insertion of liquid removing means.
2, The combination with a ?ll pipe having an 60 for urging said closure into closing position with
respect to said opening.
end ?ange provided with Opposed notches, a sup
port comprising an element adaptedto rest upon
EARL B. CHAMBERLAIN.
the outer side of the ?ange, arms ?xed to and
depending from said element and pass'ing'through
ROBERT M. KOLTER.
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