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Патент USA US2404704

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July 23, 1946.
2,404,704
R. GUYER
COMPARTMENTED FIBERBOARD EGG cAsE
Fiied April 29,1943
$511,934@
615’ 47
Ú'
@W 4'@
/1l 4,913
4 sheets-sheet 1
4615410? 45
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,
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¿my 39 3%@
l R. GUYER
COMPARTMENTED FIBERBOARD EGG' CASE
Filed .April 29, 1943
43
¿W5 '1f 41
4 Sheets-Sheet 2
Äuäy 2, 194,
R GUYER
¿4949704
COMPARTMENTED FIBERBOARD `EGG CASE
Filed April 29, 1945
4 Sheets-Shee't 4
Patented July 23, 1946
2,404,704
UNITED STATES PATENT OFFICE
2,404,704
COMPARTMEN TED FIBERBOARD EGG CASE
Reynolds Guyer, St. Paul, Minn., assignor to
Waldorf Paper Products Company, St. Paul,
Minn., a corporation of Minnesota
Application April 29, 1943, Serial No. 484,963
15 Claims.
1
My invention relates to an improvement in egg
case and method of forming the same, wherein it
is desired to produce a case capable of holding
a considerable quantity of eggs or other goods,
which case is formed entirely of cellulosic sheet
material.
,
`For many years, attempts have been made to
produce egg cases of Vfibrous sheet material such
as of liber board or of corrugated paper board.
While some of these cases thus formed have
(Cl. 229-15)
2
Figure 1 is a perspective view of my egg case in
readiness for filling.
Figure 2 is a longitudinal section through the'
case showing the construction thereof.
Figure 3 is a top perspective View of the shell,
the bottom of the case being broken away.
Figure 4 is a bottom perspective, view of the
case shell, the top thereof being broken away.
Figure 5 is a perspective View of the case com
pleting strip elements in folded relation much as
they would appear when in position within the
perienced in forming a case which is simple to
shell shown in Figures 3 and 4.
assemble and which may be made at a sufñciently
Figure 6 is a diagrammatic view showing the
low cost to compete with inexpensive wooden
died-out form of the case completing strip.
cases for the same purpose.
l5
Figure 7 is a diagrammatic View showing the
‘ ‘An object of the present invention lies in the
died-out
formation of the blank forming the case
provision of an egg case which may be manufac
shell.
tured at a low cost and with a relatively small
Figure 8 is an enlarged sectional view through
amount of material and yet it may be assembled
the
central partition member when the cover of
ina simple manner. Accordingly the cases thus 20 the case
is closed.
formed may be shipped in flat formation and may
Figure 9 is a perspective View of the form used
be assembled by the producer in an extremely
in assembling the cases,
short time.
Figure 10 is a View of the form shown in Fig
A feature of the present invention lies in the
ure 9 with the case shell mounted thereon.
worked out satisfactorily, difficulty has been ex
provision of an egg case having reinforced end 25
Figure 11 is a perspective view of the case shell
walls so as to withstand compression, A further
with
the case completing strips partially installed
feature of the invention lies in the provision of
thereinto.
a case which is simple to open and close and
Figure 12 is a perspective View similar to Fig
which when closed has little tendency to open.
11 showing the next step in assembling the
A further feature of the present invention lies 30 ure
case completing strip Within the shell.
in the provision of a case which includes a rec
The egg case A includes an outer rectangular
tangular shell which may be folded flat when not
shell I0 and a pair of case- forming elements Il
in assembled form and in the provision of a pair
of additional elongated strips which form a cen
tral separating partition, a case bottom, reinforc
and I2. The case forming elements II and I2 are
identical in formation but have «been given differ
35 ent identification numerals in View of the fact
ing end wall portions, and foldably attached cover
that they may be individually operated.
elements. When these two elements are added to
The enclosing shell It may be formed of a single
the rectangular shell construction a complete egg
length of ñber board or the like, but for the sake
case is fc-rmed.
,
of economy and simplicity of handling, the shell
An additional feature of the present invention
IU is formed of two separate elements I3 and I4
lies in the provision of a form by means of which
connected together. Both the elements I3 and
the parts of the case may be easily assembled.
I4 are> identical in form, but have been given
Such a form may be provided for the use of the
separate identification numerals for simplicity of
producer so that the cases maybe shipped in flat
explanation.
condition and assembled in a small period of 45
Each of the shell sections I3 and I4 include a
time.
wall
panel I5 connected along a fold line I6 to
An additional feature of the present invention
an
end
panel I'I. The end panel I'I is connected
lies in the provision of a locking means which pre
along the fold line I9 parallel to the fold line IE
vents outward bowing of the case walls when the
to an attachment flap 20. The attachment nap
cover members are in closed position.
50 2G of the section I3 overlap the free edge 2| of
These and other objects and novel features of
the side panel I5 of the shell sectionil4. .Simi
my invention will be more clearly and fully set
larly the attachment flap 20 of the shell section
forth in the following specification and claims.
I4 overlaps the edge 2| of the end panel I'I of
In the drawings forming a part of my specifica
the
section I3. Obviouslythe sections I3 and I4
tion:
'
55 could be connected along a fold line rather than
2,404,704
3
having these sections connected by staples such
ing bars 56. The end supports 54 and 55 are so
spaced as to permit the shell Hi to encircle the
as 22.
same and so that when the shell is in the un
Along the upper edge of the side panel l5 are
connected a pair of flaps 23 and 2li which are con
nected to the side wall panel i5 along the com
mon fold line 25. These flaps 23 and 24 are sep
folded position illustrated in Figure l0 of the
drawings, the free edges of the 'flaps 23 and 24
rest upon the connecting bars 56 so as to limit
arated by a slot >25 which extends from the `free
edge of the flaps to the fold line î’25. Opposed
projecting ears 2'! are provided on the adjacent
downward Amovement of the shell-Ile.
section i3 and lll. This flap »279 is 4‘provided >>with '
tially even with the fold lines 3€) of the shell IE)
when the shell is Supported in inverted position
Apai'r of spaced tab-le elements 351 and 5g are
arranged in coplanar relationship at the upper
`extremity of the supports 54 and the adjacent
ends of the flaps 23 and 2f! for a purpose which li)
edges of these table portions 51 and 59 are sup
will be later described in detail.
ported by spaced vertical supports @il and 6l.
As elongated flap 29 is connectedalong a fold
Thus a slotted table is formed for supporting the
line 3G to the lower edge of the panel I5 oi each
shell i@ >so that the top of the table is substan
a central notch Si for a purpose which will 'be ' "
later more clearly described.
A flap 32 is con
neoted along a fold line 33 to each end 'panel il.
The panel ii is also preferably die cut in‘channel
shaped formation along the line 34 to form a flap
35 -foldably connected to the panel l'l along the
fold line 36. Vrlf‘he fold line 3E is spaced from the
top of the panel Il’ a distance substantially equal
to the -width of the?l'ap 32.
l
/- As best illustrated Vin Figure'G vof the drawings,
thereupon.
ln assembling the case A, the shell forming ele
ments i3 andY I4 are first connected together in
any suitable means such as by the staples 22to
form Varectangular wall portion. The case fórm
ving» strips ‘il -and l2 are 'placed in Voohtínguo'u's
relation and the end flaps 37 andpartition Yfo'rm- ' ’ Y
ving `flaps 'éd are inserted in thefslot formed be-Y
tween the spaced vertical supports til and Bi,
the case form ing strips H and l2 are both formed . . as illustrated in Figure 1l until the slots 53 are ad
as‘illustratedxin'îl‘igure`6 ofthe drawings. V‘These
strips I l and' I2 comprise an endfiap >3i connected
along a fold ¿line 39 >to -a partition panel '_li?. The
_partition panel ¿lil is connected along a fold line
¿4l to-a bottom panel 42. l This ‘bottom panel is
connected along a fold line 43 to the end wall
reinforcing panel
The reinforcing panel YM
is connected >along the fold line §55 to a top cover
panel 13,5.“H'I‘his cover ypanel ‘d'5 is foldably con
nestedY alongthe line ¿il to -an end fiap ‘is having
beveled corners 50.
The‘fold line 39 includesa pair of channel
`:sha1-field dieïcuts 5l 'which
lshort projecting
ears 52Awhich will be more fully described. The
»fold> linefli is provided with a pair of ‘opposed ,
edge ‘notches 53 which'e‘íctend along vthe'fold line
4 Ih from opposed edges of" the strip.
In theìformatíon of the crate Athe rectangular
shell III is-preferably inverted and the case form
ling strip elements Il `and i2 held in contiguous
relation are inserted into the shell centrally _so
aS-to `loe midway between the end panels ifi of
jacent the slots' 3l in the fiapsïëi. VThereafter as
the 'strips n and l2 are‘forc'ed downwardiy‘the
Iflaps 2e are bent inwardly'so that Ythe slots'SI and
E3 inter-'engage and so that the slots 3| embrace
aportion of the strips ll Vand I2 and 'so'thatthe
slots
embrace a portion of "theïiaps 29. The
ñaps' 29 :are thus folded ~fiat upon the tabletops
et' and se at right angie's to me 'side panels' f5,
- as best illustrated in Figure l2 ofthe drawings.
The vertical supportsV 5s and A55 Iare >so -spaced
as ’to provide a slot between each vertical sup
port and the adjacent end wall l1 of the >shell
Iii. Into each vertical slot is inserted an “end
flap 49 of one of the strips H `or`I2. The'stri'ps
are then forced Adownwardly through the"’slot’s
withinV the side walls Il in the 'manner illustrated
in Figure 12 of the drawings until theipahels '£11
lie interiorly of Athe end panels l1 'and until
the bottom'p'a‘nels 42 of the strips lie'in'conta'ct
ing relation‘with the VfoldedY flaps 29.
_
When in this> positio'n‘the crate A'is assembled
the shell and -parallelthereto. When the fold line
V4I is'movedrto a position adjacentthe upper edges
and is'inreadiness for'ñlli'ng. ` The crate is usually
sleeve with the portion ‘ofthe flaps 29 between
ordinarily substantially rectangular in shape and
filled' by ’placi'ng'the eggs >on suitable -egg flats
‘made'particularly
for the purpose and the eggs
ofthe flaps 29, these flaps are folded inwardly to 50 are arranged in superimposed layers Vto a point
extend atright angles to the side walls i3 ofthe
adjacent the top of the case. vrlîhe egg flats are
,the base of the slots 3i and the fold line 30 'ern
braced inA the vslots 53 >of ~the strips Il and I2.
It will also be noted that the slots 3| theneem
both'si'des ofthe crate on opposite sides of the
partition:walls'li-û'are »filled with eggs. When the
-cílrat'e has been completely ñlled the ñaps V23 and
brace a portion of theA strips I2 and i3, thus
24 'are folded down ‘into right angular relation
interlocking theu?iap's -2i? with the strips i2v and
ship with the side panels l5, and the end flaps Si
I3;
Y
are folded down to overlie the adjacent ends of
The end naps 4e of the strips I2 and le are
these flaps '23 and`2`4. The cover panels ä'136 are
then inserted within the end walls lIll of the shell, 60 then folded down from the outer side walls and
one strip -i i-being inserted within one end wall
theend flaps 4'9 vare inserted between the parti
le, while the other strip l2 extends within the
>tión walls ¿das best illustrated in Figure 2 of the
opposite wall lli. These strips Il and i2 are in
drawings. `This action separates the partition
serted until th panels ßê thereof lie interiorly of
walls Lit. This separation of the partition walls 40
the 'walls i4, vwhereupon the panels d2 form the 65
acts to lock the flaps 23' and 24 _from lateral move
Vbottom of the case at the same time the panel
ment in as_rnanner which will be hereinafter
‘46 andthe end flaps 49 project beyond the top
set'forth. When thusv'closed a'strip of paper ad
of "the shell to provide an open top case which
hesive tape or the like, indicated inFigure 2 of
may be closed by the two panels 46 of the strips
Vthe drawings ~by the numeral $2 is placed fover
Il and l2.
.
the seam rbetween the cover flaps "it and to extend
>To accomplish this assembly in-a simple man
ner 'the form best illustrated in Figure `l2 of the
jdrawings may be used. This form includes'a pair
Aof spaced end supports'ñd 'and 55 in parallel lre
lation connected by laterally extending connect
partially over the opposed side wall panels l5. _
«I‘ vprefer to Vfold Athe iiaps ¿35, formed by Athe `die
out line 34, upwardly to overlie a portion ofjïhe
75 end walls i1, as best illustrated in Figure 2. The
2,404,704»
6
flaps 32 may then be folded along the fold line 33
to overlie the flaps 35. 4The flaps 32 may be held
in folded position by staples 54 or other suitable
panel, said top panel arranged to overlie said
ilaps issuing from the upper edges of said side
Walls.
means. A hand hold having a rounded lower edge
4. An egg case comprising a substantially rec
is thus provided.
5 tangular shell having side and end walls, flaps
I have described the fact that ears 52 are
issuing from the upper and lower edges of said
formed between the end flaps 3l and the parti
side Walls, a pair of compartments within said
tion panels di) by die-cut lines 5|. These ears
shell, each of said compartments being formed
52 form apertures in the partition panels 40 be
by’a compartment forming strip, said ycompart
low the fold lines 39 at the upper extremity of lu ment forming strip comprising an end flap de
the panels 4B, which may be engaged by the ears
signed to overlie said end flaps on the upper edges
2l on the flaps 23 and 2d. When the flaps 23
of said side walls, a partition wall arranged to
and 24 are fo-lded down into the position shown'
extend substantially parallel to the end Wall of
in Figures 1, 2, and 3 of the drawings, the open
said shell, a bottom wall designed to extend be
ings formed by cutting out the ears 52 are in
neath the flaps issuing from the lower edges of
alignment with the ears 2l. Therefore when the
the side walls of said shells and an end wall re
end ilaps 49 are inserted between the partition
inforcing panel designed to extend parallel to and
walls 40, these partition walls 4l! are forced apart,
urging the ears 2l through the apertures 65
adjacent an end wall of said shell.
formed adjacent th'e top of the partition walls 4B. ~'
Whenthus locked as best illustrated in Figure 8
of the drawings, the flaps 23 and 24 are held from
body shell having side and end walls, iilaps is
suing from the upper and lower edges of said side
walls, and a pair of compartments within said
lateral movement, thus preventing outward bow
shell, each said compartment being formed by an
end flap adapted to overlie the naps issuing from
ing of the side wall panels 25 away from the ver
tical edges of the partition walls fili.
the upper edges of said side walls, a partition
. Ventilating openings 65 of any desired shape
are provided in the side walls i5 to permit a
circulation of air through the case.
_
5. A shipping case comprising a rectangular
panel extending substantially parallel to said end
walls of said shell, a bottom panel arranged to
These open
underlie said flaps issuing from the lower edges
ings may be placed in any strategic position, but
are preferably formed through the side wall pan
els I5 in View of the fact that these panels are
of single thickness.
In accordance with the patent statutes, I have
described the principles of construction and op
of said side walls. an end wall reinforcing panel
designed to extend parallel to‘and adjacent an
end wall of said shell, a top panel- foldably con
nected to said end wall reinforcing panel, and a
cover tongue foldably connected to said cover
panel, the tongues of said two cover forming
eration of my egg case and of the method of ‘
strips designed to extend between said partition
forming panels.
forming the same, and while I have endeavored to
set forth the best embodiment thereof, I desire to
have it understood that obvious changes may be
made within the scope of the following claims
without departing from the spirit of my inven 40
tion.
l
. I claim:
tangular shell having side and end walls, fold
ably connected flaps on the lower edge of said
side walls, a pair of compartment forming mem
bers within said shell each' comprising a partition
wall in interlocking relation with said ilaps, a
bottom wall designed to underlie said flaps, and
` 2. An egg case comprising a rectangular shell
having connected side and end Walls, and a pair
of egg compartments within said shell each com
prising parallel walls enclosed between the end
walls of said shell and extending substantially
parallel thereto, a bottom wall connecting said
parallel walls, and a top wall foldably connected
pair of strip elementsof a width substantially
that of the inner width‘ of the shell positioned in
the shell, flaps on the bottom edge of the shell
in interlocking relation with said strip elements
holding said strip elements .from vertical move
ment, each said strip element including a parti
tion wall panel, a bottom panel foldably connect
ed thereto, and an end reinforcing wall panel>
foldably connected to said bottom panel, said par
tition wall panels being in opposed parallel rela
tion, and said bottom panels forming the case
1. An egg case comprising a substantially rec
an end reinforcing wall arranged in parallel con
tacting relation with an end wall of said shell.
6. An egg case comprising a rectangular body
shell having a substantially open bottom, and a
Y
bottom.
'7. An egg case comprising a, rectangular body
shell having a, substantially open bottom, and a
pair of strip elements of a width substantiallyV
that of the inner width of the shell positioned in
the shell, flaps on the bottom edge of the shell in
interlocking relation with said strip elements
holding said strip elements from vertical move
ment, each said strip element including a parti
to one of « said parallel walls, said shell having
tion wall panel, a bottom panel foldably connect
Ilaps issuing from the upper and lower edges of 60 ed thereto, an end reinforcing wall panel fold
said side walls, the flaps on the lower edges of
ably connected to said bottom panel, and a top
said side walls overlying, said bottom wall and
panel foldably connected to said reinforcing wall
the flaps issuing from the upper edge of said side
panel, said partition wall panels being in opposed
walls underlying said top wall.
parallel relation, `and said bottom panels forming
3. An egg crate comprising a substantially rec
the case bottom.
`
tangular shell having side and end walls and
8. An egg case comprising a rectangular body
foldably connected naps issuing from the upper
shell having a substantially open bottom, and a
and lower edges of said side walls, a pair of com
pair of strip elements of a width substantially
partments within said shell, each comprising a
that of the inner width of the shell positioned
partition wall substantially parallel to said end 70 in the shell, flaps on the bottom edge of the
walls, a bottom wall underlying said ilaps on the
shell in interlocking relation with said strip ele
lower edge of said side Walls, and an end wall
ments holding said strip elements from vertical
reinforcing panel extending parallel to and ad
movement, each said strip element including a
jacent the end walls of said shell, and a top panel
partition wall panel, a bottom panel foldably
foldably connected to said end wall reinforcing 75 connected thereto, an end reinforcing wall panel
2,404,704
8
7
foldably connected to said bottom panel, a top
panel fol’dably connected to said reinforcing wall
panel, and an end nap foldably secured to >said
top panel, said partition Wall panels being Vin
opposed parallel relation, and said bottom panels
forming the case bottom.
9. An egg case comprising a 4rectangular body
shell .having a substantially ,open'bottom, >and a
including ‘a partition; Wall panel, ¿a >bottom panel
foldably connected thereto, .an end reinforcing
Wallpanel foldably connected Yto said bottom
panel, v,and an end `flap on said `partition Wall
panel, said end flap overlying said top flaps of
said shell, said partition Wall panels being kin
opposed parallel relation, and said bottom panels
forming 'the case bottom».V
.
13. An egg case `comprising `a rectangular body
pair of strip elements of a Width substantially
that of the inner Width of the shell positioned in 10 shell vhaving a substantially open bottom and top,
and a pair of strip elements of a Width substan
the shell, flaps on the bottom edge of the shell
tially that oi' the inner Width of the shell _posi
in interlocking relation with said strip elements
tioned in the shell, topflaps on theupper edge
holding said strip elements from vertical move
of 'the shell, bottom flaps on the bottom edge
ment, each said strip element including a parti
tion Wall panel, a bottom panel foldably con 15 of the shell'in interlocking relation With said
strip elements holding said strip elements from
nected thereto, an end .reinforcing Wall panel
vertical movement, each said strip element in
foldably connected to said bottom panel, and an
cluding a partition VWall panel, a bottom ‘panel
end nap foldably connected to said partition wall
foldably connected thereto, an end reinforcing
panel, said partition wall panels being in op
Wall panel foldably >connected to said bottom
posed parallel relation, and said bottom panels
panel, an end ’flap on said partition wall panel,
forming the case bottom.
.
and a top panel connected to ‘said reinforcing
10. An egg case comprising a rectangular body
wall panel, said top panel and said end flaps
shell having a substantially open bottom, and a
overlying said top llaps of said shell, said parti
pair `of strip elements of a width substantially
that `of `the inner Width of the shell positioned 25 tion Wall panels being in opposed parallel `rela
tion, and `said bottom panels forming the oase
in the shell, flaps on the bottom edge of the
bottom.
’
shell in interlocking relation with said strip ele
lll. An eggrcase comprising a rectangular body
ments holding said strip elements from vertical
shell having a substantially cpen'bottom and
movement, each said strip Velement including a
partition Wall panel, a bottom panel foldably 30 top, and a pair of strip elements of a Width sub
stantially that of the inner width of the shell p0
connected thereto, an end reinforcing Wall panel
ioldably connected to said bottom panel, a top
panel foldably connected to said reinforcing Wall
panel, an end nap foldably secured to said top
sitioned in the shell, top fiaps onV the upper edge
of the shell, bottom flaps on the bottom -edge of
the shell in interlocking relation with said strip
panel, and anend flap foldably connected to said 35 elements holding said strip elements from ver
tical movement, each said strip element includ
reinforcing Wall panel, said partition Wall panels
ing a partition wall panel, abottom panel folda
being in opposed parallel relation, and said bot
bly connected thereto, an >end reinforcing Wall
tom panels forming lthe >case bottom.
panel foldably connected to said bottom panel,
11.. An egg case comprising a rectangular body
shell vhaving a substantially kopen bottom and 40 a top panel connected to said reinforcing Wall '
panel, a cover tongue connected to said top
top, land a pair of strip elements of a width sub
panel, and an end flap foldably connected to
stantially that of Vthe inner width of the shell
said partition lwall panel, said cover tongues of
positioned Vin the shell, top flaps on the upper
edge of thelshell, bottom flaps on the bottom
edge of Vthe shell in interlocking relation with
said strip elements holding said strip elements
from vertical movement, each said strip element
includingfa partition wall panel, a bottom panel
foldably connected thereto, .an end reinforcing
Wall panel foldabiy connected to said bottom
panel, and a ltop panel connected `to said rein
forcing Wall panel, said top panels overlying said
top flaps of said shell, said partition Wall panels
being in opposed parallel relation, and said bot
tom panels forming the case bottom.
`
12~ An egg case comprising a rectangular body
shell having a substantially open bottom and
top, and a pair of strip elements of a width sub-`
stantially that of the inner Width of the shell
positioned in the shell, top iiaps on the `upper
edge Yof the shell, bottom 'flaps on the .bottom
edge of the shell in interlocking relation with
said strip elements holding said strip elements
from vertical movement, each said strip element
said two »top panels extending between said par
tition forming panels, said top panels and said
end naps overlying said top flaps on said shell,
said partition Wall panels being in opposed sub
stantially parallel relation,y and said bottom
panels forming the’ case bottom.
15. A shipping case comprising a substantially
rectangular shell includingside and end Walls,
a pair of flaps issuing from the upper edges of
each of said side Walls, a partition Wall Withinv
said shell extending substantially parallel to said
end walls and connecting said sidewalls, said
connection comprisingY an opening in said par
tition spaced from the side edges thereof and at
least one flap Von each side of the .shell having
a projection at one end thereof spaced from the
hinge line Aof the nap and extending into the
opening to lock said side Walls from separation
or bowing outwardly adjacent the lends of saidy
partition wall.
.
`REYNOLDS GUYER.
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