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Odi- 29, 1946-
F. R. -EaUl-IRMASTER .
2,410,148
HEAVY DUTY PAPER SHIPPING CARTON HAVING- INTERLOCKING END CLOSURE
`
Filed July'lß, 1944
¿gli
«a
2 ‘Sheets-Sheet Í1
HEAVY DUTY PAPER SHIPPING CARTON HAVING INTERLOCKIÑG vEND CLOSURE~
Filed JÀu‘ly l5, 1944
2 Sheets-Sheet 2.
Patented Oct. 29, 1946
2,410,148
UNITED STATES Piri'lailsr'rv oiäriciz>`
HEAVY-DUTY PAPER SHIPPING CARTON
HAVING INTERLOCKING END CLOSURE.
Frederick R. Buhrmaster, Webster Groves, YMo.,
'
assignor to Gaylord Container Corporation, St.
, Louis, Mo., a corporation of Maryland
ApplicationJuly13, 1944, Serial No. 544,685
1o claims'. (Cl. 229-47)
1
2
This invention relates to containers, particu
larly heavy duty shipping cartons ofthe kind
My invention isr shown embodied in a’ heavy
duty shipping carton lof the type shown in Bea
shown in Beaman Patent No. 2,214,220 dated Sep
man Patent No. 2,214,220. The carton shown in
tember 10, 1941 wherein the tubular body and
Figs. 1 to 9, inclusive, includes' a tubular body A
end closures of the carton have side ñaps- that
and preformedslip covers or closures B for the
are held in interlocking engagement by anex
terior encircling band. The principal object of
`th‘e present invention is to simplify rthe cover
locking arrangement of such cartons and the-0D
eration of attaching the cover to the body. The
ends thereof, all made, of corrugated board, ñber
board or other bendable material. The tubular
body A is divided by longitudinalcreases or scores
invention consists in a _carton khavingra tubular
cured together, `preferably by staples 3. Each
sidepanel 2 has ateach end thereof a projecting
flap 4 adapted to befolded into proximity with
l into side panels 2 and is made from a flat blank
whose>l ends areV overlapped vand permanently se
body with endl ñaps that are adapted to be folded
against the outside face thereof and end closures
with rim flaps that overlap the’folded body flaps
the outside faceof said. panel, a score line 5 being
and have rebent end portions that are disposed
in endwise abutting relation to the'free ends <of
provided tov facilitate folding of said iiap,
Eachv end» 'closure Bis p_f- asliape corresponding
saidA folded bodyflaps and thus prevent endwise
to the shape'of the paneled body member A and
has side marginalflaps _G corresponding in num
inventiony also consists in the means for locking
ber to the body flaps kl‘l.v AThe> side marginal flaps
the rebent> end closure flaps in rim forming rela: 20 6 of the~v end» closure B are bent ‘along score lines
tion; and it also consists'v in the carton closure
'l Y at right- angles` to the body.- `portion thereof
and in the parts and combinations and arrange- `
and‘have extensions or continuationsßa- that are
ments of parts hereinafter described and claimed.
marked off by means of vwide scores or creases ‘la
' In the accompanying drawings, which- form
and _folded or> rebent on their inner sides. The
part of this specification, and wherein like sym
bent. side-marginal flapsv 6 are permanently con
removal'. of the end closures from said body. The
nected 'together lin> end to end relation around the
bols referto like parts Wherever they occur, y '
Fig. 1 is a side elevational view. of va shipping
carton embodying my invention, 4
` y. ,_
, '
periphery'of the end closure B1 toform a rigid
l
' Fig. 2 is` anA enlarged partial’ verticalv sectional
30
Fig. 3 is a fragmentary end‘el'evational View
of the carton, the carton beingshown partially
2',
'
4
i
_
`
.
relation.A _The; rebentsportionßa of the end clo
Y
35 sure -ñaps >b. are .rigidly and Apermanently. secured
thereto preferably by means. of Vstaples -9; »and
_ Fig..4 is a fragmentary crosslv-sefcti'onal View on
the line 4-4 in Fig. 2,
'
`
n
Fig. 5 is aside elevational ,view-showing'. the
body and end closure beforeas'semblyî,
Fig. 6 is a` vertical sectional view of said body
, and end closure on tlfie'lii'ielì---lìv in Fig. 5',
,
` , theser staples Nare llocated.between*the retaining
ringv or hoop 8 and. thev4 free longitudinal:¿edges_
'f of saidrebent portions offsaid end closure flaps
40 andv thusserve to retain said ring or hoop withinv
the rim'portion Blof the end closureB.
By the varrangement described, when the end '
Fig. 7 is an innerend View of saidvend closure,
Fig. 8 is a plan View of the- cover-blank,
Y
Fig. 9 is laY partialelevation ofthe body blank,
Fig'. 10 is apartial side. elevational View> of a ‘V
shipping container provided.` with an end closure
of modified form, .
.
y
,
45
'
locked position; ' and
are bent. inwardly. .bythe rim" B1 of said closure
causes. the rebent portions or extensions 6a of the
I
Fig. 12.is a view simiiartor‘ig. 11, showing the '
positions of the cooperating ‘lend c1osure and body
tabs before said tabs are drawn,y inwardly, into
closure B is forced over the end-ofthe Ybody A, '
the outstanding flaps 4 onsaid. endr of said body ^
‘ againstfthe outsideface of said body. Contin
ued yendwise movement of: the. Íendfclosure" B
.
. Fig. 11 is an enlarged fragmentary vertical secl-`
tional view on the'line lI-H in Fig. 10,
closedcircular‘band- or hoopïßv of metaly or other l
suitablek material -,which liesj within the folded
portions 6a yof» saidiìaps and extends from one
flap> to> another and holdsv'them in rim forming
in horizontal cross-section on the line :3-3 in
Fig.
rimv B1 therefor'.> The connecting means. for‘the
bent ,rim >forming flapsv (iv preferably comprises a
50
«
Fig. 13 is a piany view of the..mooiiiéd.er_iq¢1o.. f
rimforming flaps -6 thereof to ride over the foldedv
body flaps ¿l> Whichyieldinwardly with ’said body
and then spring outwardly across the ends of
' said rebent portions of. saidrim forming ñaps.
By this 4iarrangement, the internal’¿ shoulder vIl'
sure, the.y flaps thereof >in the position >'shown in 55 formed'in tl'ie-rim'lâl> ofthe endv closure B by the
Fig. 12`.
rebent portionsz‘ßa »of the rim vforming~ñaps>n6
2,410,148
È
formed on the body A by the folded end flaps 4
thereof, thus permanently locking said end clo
3. A carton comprising a tubular body and a
closure for an open end thereof, said body hav
sure to said body.
The hereinbefore described construction has
ing> an external peripheral shoulder ,thereon adja
several important advantages.4 „It _is simplenand
cent to said end thereof, and said closure having a
rim portion that' surrounds said end of said body
economicalnand permits the end closure B ofthe
carton to be quickly and easily mounted on and
securely locked to the body A.
land has an internal shoulder disposed in abutting
relation to the external shoulder thereof, said rim
The continuous
hoop or band 8 in the rim B1 of the end closure
B serves to rigidly hold the bent' flaps 6a of said
end closure in end to end rim forming relation,
whereby said rim is rigid enough to force the side
panels 2 and the end flaps 4 thereof inwardly
when said end closure is telescoped over the end
of said body and to prevent lateral disengagement
of the abutting shoulders l l and l2 after-,said side'
4
ternal shoulder, and a band infolded Within said
folded portions of said bent closure flaps for
holding them in such rim forming relation.
thereof abuts against the external shoulder l2
portion of said closure comprising a. plurality of
side marginal flaps on said closure bent into _end
to end rim forming relation and thence rebent on
their inner sides to form said internal shoulder, a
band infolded vwithin said 'rebent portions of said
closure flaps for holding them in such rim form
- ing relation, and .means for securing said rebent
portions directly to said closure flaps and for
retaining -said band therein,
fl. A carton comprising a tubular body and a
In the modified form‘of end closure shown in a;
slipfclosure for an open end thereof, said body
Figs. 4»10 to 13, inclusiveßth'e band'for holding the
panel flaps snap over the rebent portions 6a _of
said end closure flaps.
side marginal flaps E of the >end closure B in rim
forming relation isin the formof a wire-8a. that
islocated in the folded portions lia of said flaps
having anexternal peripheral shoulder thereon
adjacent to said end thereof, and said closure
having' a rim portion with an internal shoulder
with' its utwo ends extending ‘outwardly through f
adapted to ride over and seatback of said ex
notches I3 provided therefor in the meeting ends
lofïtwo adjacent flaps. lWith -this form of retain
ternalshoulder when 'said closure is slipped over
ing band, the end closure B is placed over the
end of the body A with the free longitudinal‘e'dges
III of the rebent portions Goof-the -inclined end
closure flaps G inedgewise abutting'relation to
the free ends l2 of theA inclined bodyflaps 4, after
which the Wire 8a is tightened to swing the en
gaged end closure and body flaps inwardly along
side of the body panels 2. AThe cooperating flaps
are then securely locked in'such position by twist
ingn together theY exposed-ends =8b of the wire 8a.
By ¿this arrangement,the end'closure is locked
tightlyto Vth‘e'body but may be quickly and easily
removed therefrom by cutting -the locking Wire 8a
or »untwisting the exposed-twisted ends 8b thereof.
`Obvio'usly,ftlie’>V hereinbefore described carton
construction admits >of considerable modification
without departing' from the invention. There-l
fore", I do not wish to be limited to the precise ar
rangements nshown and described.,
"Whätïclaimis:
"
‘ '
_
' 1.'A~carton comprising a tubular body and a
closure-forfanfopen *end thereof, said body; hav
ing 'anvr external peripheral` shoulder thereon" ad- l
jacent to said jend thereof, and said Yclosure hav
ing arim portion that-surrounds said end of said
body andîh'as an yinternalshoulder',,disposed in
abuttingrelation to the externaï'shoulder'ïthere
of, said rirnl portion ‘of Vsaid/,closure comprising a
said end of said body, said rim portion Vof said clo
sure comprising a plurality of side marginal flaps
on said closure bent into rimforming relation
and having portions folded vupon and- secured
directly to the inner sides of said' bent flaps to
form -said Ainternal shoulder, and vmeans located
within said folded portions of said bent closure
flaps without being ldirectly secured thereto for
permanently holding them in suchjrim forming
relation.
'
'
'
'
>
>5. A carton comprising a tubular body and a
s1ip_closure"for an open .end thereofysaid body
having anv externalperipheral'shoulder thereon
adjacent tov saidend thereof, and said closure
having a `rim portion with aninternal‘ shoulder
adapted Yto rideover andV seat back of said exter
nal shoulder when said closure is slipped over
said end_of said body, said rim portion of said
clos-ure comprising >a plurality of side marginal
flaps` onsaid closure bent into rim forming rela
tion and having portions folded upon and secured
directly to the inner‘sides of >said bent flaps to
forrn'said‘V internal' shoulder, -„and arclosed band
infoldeduinl the folded Iportions ofrall of' thev bent
iiaps fof" said I_closure4 for permanently Yholding
them
rim'forming relation.
b'
_
>
“6; Acarton comprising a tubular body anda
y closure for an open end thereof, said body hav
ing an‘e'xt'ernal peripheral shoulder thereon'ad
jacent to said end thereof, and lsaid closure hav
plurality of side marginal fiiaps on'rs'aid closure
bent into riml forming> relation and having por
ing a‘rim-portion‘thatsurroundsisaid end of said
forming relation. _l
their innery sides toform saidf internal shoulder,
tions folded upon and'lsecured‘directly to thein
body and has-¿fan i'n-t_er;'r_lalï"shoulderV disposed in
abutting relation to thefexternal shoulder thereof,
ner sides'of‘said bentV flaps to form said internal
shoulder, and means inclósed'within the folded GG said rim-portion of saidclosure comprising a plu
ralitybfïside marginal'flapson said closure bent
portions of said bent flaps without being directly
into rim-*forming relation and thence rebent on
secured; thereto 'for` holdingr them in ¿such rib
`
‘
-
'_ i
v-2; A carton comprising'a~ tubulanboldy and a
closurefor `an open end thereof, >said’body hav
ing'an external peripheral "shoulder-- thereon ad
jacent to said end `thereof;and's'aidclosurehav- f
ing a rim `portion that‘surrounds "said e'rfldv ofgsaid
bodyA and hasn'anLinternal shoulder disposed;- in
abutting 'relation to the* external shoulderl there
of, said rim portion _of said _closure comprising a
plurality >of side]rriargir'iall flaps onY said ‘closure
bent into 'rim' forming relation i and having " por-A
tions folded uponj Yand' Ísecured-idirectly tof ,the
inner sides of >said bent flaps-‘to'form said vin"
a bandV locatedlwithin saidrebfent'- portions of said
closure ñaps for holding'them togetherÍin such
rim forming relation, and `means forfsecuringl
said rebentvportions',directly VtoÁsaid closure flaps
between the `ends thereof Yand said band, said
band comprising a> wirehaving its ends extend
ing outwardlyl between two'adjacent closure flaps
and secured’t'ogeth'er.
f‘
_
'
'7, A carton comprising“ atubular body and a
slip closure forA 1an"A open~ end> thereof, said body
l having a'plurality of flaps at said end-adapted-to
fold against the outer side Aface thereof toï'fo‘rm‘
2,410,148
5
6
an external peripheral shoulder thereon, and said
comprising a wire having its ends extending out
wardly between two adjacent closure naps and
end closure having a rim portion that surrounds ,
said bent body flaps and an internal shoulder dis
posed in abutting relation to said external shoul
der, said rim portion of said closure comprising
a plurality of side marginal flaps on said closure
bent into rim forming relation and thence rebent
to form said internal shoulder, means for se
curing said rebent portions directly to said flaps,
and a continuous band inclosed within the rebent
portions of said flaps for holding thern in such rim
forming relation.
8. A carton comprising a tubular body and a
slip closure for an open end thereof, said body
having a plurality of flaps at said end adapted
to fold against the outer side face thereof to form
an external peripheral shoulder thereon, and
said end closure having a rim portion that sur~
rounds said bent body ñaps and has an internal
shoulder disposed in abutting relation to said ex
ternal shoulder, said rim portion of said closure
comprising a plurality of side marginal flaps on
detachably secured together.
9. A carton closure having a rim portion with
an internal peripheral shoulder, said rim portion
comprising a plurality of side marginal flaps on
said closure bent into rim forming relation and
thence rebent on their inner sides and rigidly se
cured directly thereto to form said internal
shoulder, and means inclosed within the rebent
portions of said ñaps for holding them together
in such rim forming relation.
10. A carton closure having a rim portion with
an internal peripheral shoulder, said rim portion
comprising a plurality of side marginal flaps on
said closure bent into rim forming relation and
thence rebent on their inner sides and rigidly
secured directly thereto to forrn said internal
shoulder, and a band located within the rebent
portions of said flaps for holding them together
in such rim forming relation, said band compris
ing a wire having its ends extending outwardly
said closure bent into rim forming relation and
thence rebent to form said internal shoulder,
means for securing said rebent portions directly
between two adjacent flaps, whereby said naps are
adapted to be drawn into rim forming relations by
to said iiaps, and a continuous band inclosed
by securing together the ends of the tightened
within the rebent portions of said ilaps for hold
wire.
ing them in such rim forming relation, said band
tightening said wire and locked in such relation
FREDERICK R. BUHRMASTER.
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