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Патент USA US2137695

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NOV. 22, 1938.‘
Filed Dec. 24, 1931
- 2,137,695
Patented Nov. 22, 1938
Augustus L. Merolle, Brooklyn, N. Y., assignor to
Empire Metal Cap 00., Inc., Brooklyn, N. Y., a
corporation of New York
Application December 24, 1931, Serial No. 582,913
6 Claims.
This invention relates to. a receptacle closure,
and particularly to a closure which is formed of
two cup-shaped pieces of sheet material nested
together one within the other, the inner member
orvshell being formed with means for engaging a
receptacle to hold the closure connected with the
receptacle, and the outer member or cap constié
tuting an ornamental cover, protector and re
inforcement for the inner member, and an object
10 of the invention is to provide a receptacle closure
of this character which shall be easy to manufac
ture, which will be of ornamental and attractive
appearance, which will be strong and substantial,
and which may be produced in quantities at
small cost.
A further object is to provide a receptacle
closure of this character in which no raw edge of
material will be exposed at any point throughout
the closure either inside or outside thereof.
A further and more detailed object is to provide
simple and e?icient means, effective without the
performance of an additional operation during
manufacture, of retaining the inner and outer
members against possibility or rotation with re
25 spect to each other at all times.
A further detailed object is to so construct the
two members of the closure that they will have a
constant resilient pressure against each other ef
fective to hold them against possibility of rela
30 tive movement during use.
‘Other objects and aims of the invention, more
or less speci?c than those referred to above, will
be in part obvious and in part pointed out in the
course of the following description of the ele
ments, combinations, arrangements of parts and
applications of principles constituting the inven
tion; and the scope of protection contemplated
will be indicated in the appended claims.
In the accompanying drawing which is to be
taken as a part of this speci?cation, and in which
I ‘have shown merely a preferred form of em
bodiment of the invention:—
Fig. 1 is a side elevational view of a receptacle
closure constructed in accordance with this in
vention, a part being broken away and shown in
vertical section for the better illustration of de
.Fig. 2 is .a fragmentary top plan view of the
structure seen in Fig. l.
Fig. 3 is a fragmentary detail sectional view
upon the plane of line III—III of Fig. l, and;
Figs. .4. and 5 are diagrammatic sectional views
illustrating slightly modi?ed forms of the cap
and shell members and their co-operative fea
(Cl'. 215—43)
Fig. 6 is a sectional view similar to Fig. 4, on an
enlarged scale, but broken away to show one side
only, the other side being identical;
Fig. '7 is a section on the line 1-1 of Fig. 6,
and to the same scale, but broken away;
Fig. 8 is a sectional view similar to Fig. 5, on
an enlarged scale, but broken away so as to. only.
show one side, the other side being identical;
Fig. 9 is a section on the line 9—9 of Fig. 8, but 10
partly broken away.
Referring to the drawing for describing in de
tail the structure therein illustrated, and re
ferring ?rst to the structure illustrated in Figs.
1 to 3, the reference character L indicates the 15
inner member of the receptacle closure while the
reference character G indicates the outer mem
ber of the closure.
The inner or cap member L is made of thin
sheet material, such as sheet metal, and is formed 20
with a top wall I for overlying the receptacle
opening and a marginal annular side wall or
?ange portion 2 for overhanging the annular
surface of the mouth of the receptacle in the
usual manner. The side wall 2 is suitably shaped, 25
as for instance by having threads as '3 pressed
therein, to releasably engage oo-operative for
mations provided upon the outer annular surface
of the receptacle.
At the lower margin of the side wall 2 said wall 30
is flared outwardly as at 4 and thence extended
downwardly and inwardly as at 5.
The outer or shell member G is made of thin
sheet material, such as sheet metal, and is formedv
with a top wall 6 for overlying the top wall I 35
of the cap and a marginal annular side wall or
?ange portion 1 for overhanging the side wall 2
of the cap member.
At the lower margin of the side wall 1 said wall
is turned inwardly as at 8 to underlie the in
turned portion 5 of the cap member, and is thence
turned upwardly and outwardly as at 9, and
thence again downwardly as at Ill within the
lower margin of the cap member.
The lower marginal portions of the sidewalls 45
of the shell and cap members are thus inter
folded with each other into an inwardly disposed
wire edge, which is designated generally by the
reference character H, which is of double thick
ness throughout an appreciable portion of its
cross sectional circumference, thereby producing
a wire edge of great strength and stiffness.
It is noted that no raw edge of metal is at any
point in this closure exposed to vision or to access
of a corroding substance, suchfor instance as 55
ketchup, from within the receptacle.
The raw
edges, as. !2 and H, of the shell and cap mem
bers are curled within the wire edge H where
they are both permanently con?ned wholly out
of sight and not accessible to any corroding in
fluence at least in-so-far as such in?uence might
result detrimentally to the appearance of the
In forming the wire edge H the lower marginal
10 portion of the shell member is curled about the
lower marginal portion of the cap member sov
that both these lower portions are simultaneous
ly curled into interfolded relation as the opera
tion of completing the wire edge proceeds.
It is important further to note‘ that during this
operation of curling together into interfolded re
lationthe lower margins of the cap and shell,
a powerful pressure is necessarily exerted be
tween the two members tending to force the cap
member relatively upwardly and the shell mem
ber relatively downwardly, thereby pressing the
top wall members I and 6,. respectively of the
cap and shell members tightly againsteach oth
The effect of this force is'made more pro
IO iii nounced by reason of the fact that the wire edge
is of considerable cross sectional width radially
of the closure, thereby bringing a generous ex
panse of the two members of the closure against
each other at the wire edge and in the direction
of the pressure.
It is further to be noted that in forming the
outturned'portion 9'of the wire edge, said por»
tion is forced snugly against the relatively un
der-surface of the out?aring portion 4 of the
35/ cap member, thereby adding further pressure of
the cap member relatively upwardly against the
top wall of the shell member.
The out?aring portion 4 of the cap member,
against which all of the pressure from the wire
similar corrugations as 14 formed upon the top
wall 6 of the shell member, the corrugations I3
and I4 being set to radiate from the center of
the walls I and 6V and being disposed so that
they mesh together, as most clearly indicated 5
in Fig. 3.
The corrugated surfaces above referred to may
be formed in the walls I and 6 prior to assem
bling the cap and shell members together, and
when said members are placed together the cor~ 10
rugations will naturally co-incide and intermesh
so that thereafter, when the wire edge has been
completed, they will be so held in intermeshing
relation as indicated in Fig. 3 that no possibility
of relative rotary movement of the cap and shell 157
7 members is present.
If desired the material, for instance sheet met
al, from which the cap and shell members are
formed-may be lacquered upon both of its sur~
faces, and when this is done the contact surfaces
of the two members, not only in the corrugations
I3 and I4, but also at the wire edge H, will be
held cemented together, by- the lacquer, and thusv
the members are additionally retained against
relative movement. Thepresence of the lacquer
will also serve to seal the joint between the‘
tion 9‘of the wire edge H and the portion‘
of cap member. more effectually against the
sibility of movement‘ of.‘ moisture or other
stance into or out' of the interior-of the
por4: of
wire 30
In addition to the wire edge itself constitut—
ing a stiff re-inforcing band at the lower’ margin
of the closure, the out?aring. portion 4 of the
cap member adds greatly to the strength of the
wire edge in always maintaining the true cir
cular contour of the lower portion of the clo
In instances where the closure is intended to
40, edge is ‘exerted, is so formed as to possess an ap
be threaded onto a receptacle, as in the case of
preciable degree of resilience. Its out?aring dis‘
the closure herein illustrated, the wire edge H
is- positioned so that although turned inwardly.
of‘the closure, itsinnermost diameter is equal
to or greater than the outer-most diameter of
the threads on the‘receptacle, thereby to clear
said threads when the closure is being applied
position issuch that it constitutes in effect an
annular; resiliently ?exible connection between
thewire edge portion and the remainder of the
vcap member, and the pressure from the parts, of
the wire edge is. exerted substantially at' the
outer circumferential margin of, this resilient‘
The pressure from the wire edge exerted for
50 holding the two top walls I: and 6 against each
other is transmitted throughthe ?exible. re
silient portion 4‘v of ' the. cap member and is, in:
tended'to be sufficiently great so as to cause a
certain'amount of ?exing of said portion 4 and,
' thereby generate a perpetually maintained re
silient pressure’ of the top walls of the cap andv
shell members against each other.
The interfolded relationship of'the lower mar
gin of the cap and’ shell members, in the wire
edge, are in‘ most cases su?icient to prevent any
possibility of inter-rotation of the shell and" cap
members in use, but the present invention cone
templates that, if desired, further means to this.
end may be provided as for instance by forming
~co-operative interengaging conformations upon
the cap and shell members such that when said
members are held together in position as hereinabove set forth, said co-operative conforma
tions will be held in such relation to each other
70 as to positively lock the cap and shell members
against even the remotest possibility of rotary
movement with respect to each other.’
An example of such a means is illustrated
herein as consisting of ‘corrugations as Is formed
75 upon the top wall I: of “the cap member and
onto or removed from the receptacle, as will be
readily understood. In the closure as illustrat
ed'lthe-wire edge stands radially outside of the’
vertical plane of the inner surface of the largest.
diameter of ‘the threads 3 of the cap member.
In the modi?cation illustrated by Figures 4'
and 6' the structure is the same as has already
been set forth except'that in this instance the
lower annular portion of the cap member is .
not curled'inwardly within the wire edge as in
the previous views, but extends straight down
wardly from: the portion 4; as at I5, within the
wire edge. The extreme lower‘ edge of the cap
member may have contact'with the interior sur 60
face of the wire edge but it is intended that the
main force from the wire edge against the cap
member, for holding the top walls 6‘ and I. of
said members pressed together, is exerted against
the cap member by the inner edge portion, as
l6’ of the wire edge where it engages against the“
portion? 4 of the cap member as indicated.
Thisview also shows the outer annular wall
‘I of the shell member as ?tting more snugly
about thewall 2 of the cap member. In fact it 70
is intended. that the inner surface of the wall
1' shall engage against, or be engaged by, the
outer surface of the wall 2 so that said walls
mutually reinforce each other substantially
throughout their extent, thereby enabling the
use of agrade or kind of sheet material rela
tively thinner and weaker and cheaper, than the
grade required in they building up of a structure
as hereinabove described, and without loss of
strengthin the completed closure.
‘ The‘ lower marginal part of the wall ‘I of the
wall! for mutual re-inforcement of the walls .2
and 1 as above referred to concerning the illus
tration Fig. 4. In thestructure illustrated by
Figs. 1 and 5 these corrugations l8 may, if de
sired, be so formed that their lower end portions Cl
will constitute a series of downwardly facing
shell member is shaped sov as to ?are outwardly shoulders, as 19, corresponding to the down
asv atl'ltabove' the outer annular portion of the , wardly facing shoulder formed by the portion I‘!
resilient‘part 4 ‘of. the cap member. In prac
of Fig. 4, and this shoulder, or shoulders, l9 may
10 tice it is intended that when the shell and cap
be disposed to stand so as to be engaged by the
members are originally nested together, the part margin of the portion 4 of the cap when the
4 shall be'spaced slightly away from the part vll, wire edge presses against the said portion 4 as
but that'in, the operation of forming the wire described with reference to the parts l6 and ll
edge‘H the edge portion l6 of the said wire edge of Fig. 4.
15 will ‘engage against the portion 4 and flex said
During the operation of rolling in the wire
portion 4' toward and preferably against the in
edge H against the margin of the portion 4, said
ner surface'of the portion H thereby forming a margin may, if desired, be pressed su?iciently
lock between the cap and shell members.
tightly against the series of shoulders as I 9 to
ifAlso concerning the structure of Fig. 4 it is cause each of the shoulders insaid series to pro
20 further noted that the inter-engaging relation
duce an indentation of greater or less depth in
ship of the cap and shell members at the wire the margin of the portion 4, and, since the wire
edge is such that, even if the upper portions of edge will continue to hold the indented margin
these two members, for instance the top walls of the portion 4 against the shoulders, the shell
l and‘, 6, have no engagement with each other, will be thereby positively locked against rotation
with respect to the cap.
25. still the two members would be efficiently locked
together. The portion I‘! of the shell member
The presence of the corrugations l8 in the
provides 'a shoulder or downwardly facing sur
wall '1 provides an additional advantage in that
face portion of the shell member against which it furnishes a means by which the closure may
theupwardly exerted pressure from the edge be more ef?ciently gripped in amachine for per
30 portion 16 of the wire edge vH clamps and grips forming the operation of attaching the closure
the-‘portion 4 of the cap member. In some in
onto a receptacle. The shoulder, or shoulders
stances it may be’ desirable‘to construct a closure
HLLlike the shoulder 11, forms a stop above or
in‘this' manner, the portions as l3 and I4 being behind ‘the margin of the portion 4 which is
provided, if found necessary, merely as additional
35 means for retaining the cap and shell'members
against inter-rotation, but there being no appre~
very desirable in preventing distortion of any
of .the parts during the operation of rolling in
the wire edge.
,ciable pressure of said corrugated portions
It is noted that in both the structures of Figs.
against each other vertically of the closure.
I'In‘the modi?cation illustrated by Fig. 5 the
4 and 6 and 5 and 8 the raw edges of the material
of the cap and shell members are concealed and
protected to thesame purpose as above referred
to concerning the structure Figs. 1 to 3.
As many changes could‘ be made in this con
struction. without departing from they scope of
the invention as de?ned in the following claims,
it is intended that all matter contained in the 45
above description, or shown in the accompanying
40 structure is again the same as described with
respect-to the previous ?gures except that in this
instance the lower annular portion of the cap
member does not extend downwardly at all from
the resilient ?aring portion 4.
The portion 4
45 simply projects radially outwardly and termi
nates with its raw edge surface facing directly
radially outwardly of the closure. In this in
stance the wire edge I-I simply curls inwardly
beneath the outer margin of the portion 4 and
50 is intended to press tightly thereagainst, prefer
ably so as to ?ex said portion 4, to the same
extent as heretofore. In this illustration the
outer wall as ‘I of the cap member is shown
as varying slightly from the forms in the previous
55 ?gures, in that it is of a generally frusto-conical
shape, being of a diameter at its lower portion
sufficient to just receive the out?aring ?ange 4
of the cap, and being of a’diameter at its upper
portion to just receive the upper portion of the
60 cap.
Since the cap L is formed with no exten
sion beyond the portion 4 it requires somewhat
less material than in either of the other illus
trated structures.
By making the wall ‘I of the shell member
65 of frusto-conical shape said wall is materially
stiffened not only in the ?nished closure but also
against collapse during the operation of turning
in the wire edge H.
If desired the wall 1 of the shell member of
70 the structures, as illustrated in Figs. 1 and 5,
may be formed with vertically extending corruga
tions, being indicated by the reference character
ii! in Fig. 5, and the innermost portions of these
corrugations may, if desired, be disposed so as
75 to rest against the outermost portions of the
drawing, shall be interpreted as illustrative only
and not in a limiting sense.
Having thus described my invention, what I
claim as new and desire to secure by Letters Pat
ent is:-—
1. A receptacle closure consisting of a cap
member and a shell member, the shell member
having a top wall portion and a marginal de
pending side wall, the cap member having also a 55
top wall portion and a marginal depending side
wall and being nested within the shell member
so that the top wall portions of said two members
stand adjacent each other, the side wall portion
of the shell member being formed with vertically 60
disposed corrugations circumferentially thereof
disposed to project inwardly of the shell mem
ber so as to engage the side wall portion of the
cap member for mutual re-inforcement of said
two side wall portions, said corrugations provid 65
ing a series of downwardly facing shoulders upon
the inner surface of the shell member, the side
wall portion of the cap member having a shoul
der forming part to engage the mentioned se
ries of shoulders, and means formed upon the 70
side wall portion of the shell member engaging
the shoulder forming part of the side wall por
tion of the cap member to hold said shoulder
forming part of the cap member against said
series of shoulders.
a top wall portion and a marginal dependingside
wall, the cap member having also‘ a top wall por
atop: .wall. portion anda marginal depending side tion andja marginal depending side wall and be:
wall, the. cap member having also a top wall por-, ing nested within the shell member so that the
tion' and amarginal depending side wall and top wall portions of said two: members stand ad
being nested within the shel-lmember so that the jacent .to each other,‘ said top wallportions of the
topvwall portionsrof'said two members stand ad-, cap and shell having interengaging corrugations
jacentxeachlv other, the side wall portion of the and said cap and shell engaging with each other
shell‘ memberv being formed with a series of below said top walls; to hold said members in
circumferentialy l spaced shoulders interiorly nested relationship and said corrugations in en-'
thereof; the side wall portion of the'cap member gagement.
5. A receptacle closure comprising arcap mem
having a-shoulder forming part disposed to en
gage‘wth‘e mentioned series’ of shoulders, and the ber and. a shell member, the shell vmember having,
side wall portion of the shell member being-bent. a top wall portion and a marginal depending-1
, 2;: A receptacle .closuretconsistingof‘ a" cap mem
ber and‘ a? shell memberrthe'shell member having
1- tocformtantinturned wire edge thereon, a por
side Wall, the capmember having also a top wall; , 3
ti'o‘nof which is disposed to: constitute another
portion and a-marginal dependingrside wall‘ and
shoulderinteriorly of the closure in such a po
being nested, within the shellvmember so that:
the top wall portions of said two members stand.
adjacent each other, the side Wall portion ofthe
sitioniasto, press against‘the shoulder forming
partzof theicap member and‘ press said shoulder
,-forming: part of the'cap member against said se
ries- of > shoulders:
\3.-. Airecepta'cle closure consistingof a cap'mem
b‘er-anda shelli member, the shell member hav
ingca' top walltportion and a marginal depending
' side wall, the cap member ‘having also a top wall
shell member being formed with vertical corru- .
gations circumferentially thereof, disposed to.‘
project inwardly of‘ the shell member, the side‘
walls of saidcap and shell members engaging,
at the bottom marginal portion of the cap‘ side
wall, and said corrugations in the side wall of said
shell being located above the said engaging por
portion and ‘a: marginal-depending side Wall and
being nested“ within the: shell: member so that.
‘the. top'wall portions of said two membersstand
tions of the side- walls of the cap and shell and
between them; and the top walls of the, cap and‘
adjacent each other,'the top wall portions of
shell, said top‘ wall portions of the cap andshell
each: of said two members being‘ formed with
havingl interengaging corrugations.
corrugations which‘ mate together and thereby
cooperate when said cap member is placed tight
ly‘ iniit‘s nesting-position against the mentioned
topgwa-ll portion of the shell member'to hold said
6. In a closure cap of the class-described, the
combinations of an inner cap‘ member having-a
:" cap‘andishell members against rotation with re
spect to each other, and said cap and shell mem
bers*havingiother‘portions interengaging to press
and: hold: said‘cap memberw tightly in its nesting
direction’against the mentioned top 'wall portion
of: theshell member to'thereby render said ?rst
cooperative portions effective.’
skirt portion provided with“ container engaging‘
means, anduan outer shell member adapted to
encase saidcap member, said shell member hav- <
ing a depending skirt provided with an'inturnedv
rolled edgeturned into substantially a hollow
bead having a convex upper outer surface on the
interior of said shell member,‘ said‘ upper convex
surface of said bead engaging the bottom of, 405
the skirt of- said: cap member to secure ‘said cap
and shell ‘members together.
ber and-a shell member, the‘ shell member having
4; ‘A'recepta-cle closure comprising a cap mem
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