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Патент USA US3032244

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May 1, 1962
w. E. TAYLOR
'
3,032,234
SNAPPING TYPE OVERCAP FOR DISPENSING CONTAINER
Filed Feb. 4, 1959
IN VEN TOR.
W/ZL/AM [OW/IEO T4 YA 0f
AGENT
Uited States Patent C) "ice
3,032,234
Patented May 1, 1932
2
1
ilar to FIG. 2, but taken in a vertical plane through one
3,032,234
SNAPPING TYPE OVERCAP FOR DISPENSING
CQNTAENER
of the spaced shoulder sections formed in the breast por
tion of the can as illustrated in FIG. 3, parts being broken
away; and
William Edward Taylor, Fair?eld, Conn, assignor to G1
FIG. 5 is a fragmentary view in side elevation of two
American Can Company, New York, N.Y., a corpora
stacked cans made according to the principles of the in
tion of New Jersey
stant invention, parts being shown in section, other parts
Filed Feb. 4, 1959, Ser. No. 791,206
being shown in dotted lines, and still other parts being
3 Claims. (Cl. 220-60)
The present invention relates to containers having dis
pensing devices carried in upwardly extending breast por
tions, and more particularly to such containers wherein
broken away.
As a preferred or exemplary embodiment of the in
stant invention, the drawing illustrates a container 10
comprising a cylindrical body 12 preferably formed of a.
substantially full size overcaps are held in snap-?t en
single sheet of metal having its longitudinal marginal por
gagement with the breast portions to protect the dispens
tions secured in a suitable side seam (not shown). The
lower end or" the body 12 is closed by means of a sub
stantially ?at bottom closure 14 which is secured to the
body in a conventional double seam 16.
The upper end of the body 12 is closed by a top end
ing devices when the containers are not in use.
The recent development of the aerosol package has
resulted in the widespread use of metal cans wherein a
centrally disposed dispensing valve mechanism projects
upwardly above the top of the can. If not protected, this
valve mechanism presents problems during the normal
handling and merchandising of such containers, since the
product will be dispensed if pressure is inadvertently ex
erted against the exposed valve mechanism. This may
result in unsightly and/or short weight packages. Fur~
ther, the exposed valve mechanism frequently detracts
from the appearance of quality packages, and prevents
stacking of the containers one upon the other.
Much thought has been given to overcoming these
problems, and the most practical solution has been to pro
vide an overcap which covers the valve mechanism.
Many types of overcaps have been used, but most of
member 18 which has its marginal peripheral portion in
terlocked with the upper marginal end portion of the
body 12 to form a conventional hermetic double seam
20. The upper end member 18 extends inwardly‘ fromv
the bottom of the vertical countersink wall 22 of the
double seam 20 and is curved upwardly and formed into
an upwardly extending upstanding breast 24 which pro
jects a substantial distance above the top double seam 20
(see FIGS. 2 and 5). The upper portion 25 of the,
breast 24 is substantially of dome shaped or frusto-coni-l
cal con?guration, while its lower portion comprisesa
gently curved annular wall 26 which forms the base of
the breast 24 and is closely spaced inwardly of the top.
them are de?cient, on one count or another, from the
double seam 20' to provide an annular space or counter
standpoint either of cost, appearance, stacking ability, or
sunk channel 28 therebetween. The upper portion of
the annular wall 26 is bulged outwardly to form an out
wardly projecting annular locking bead or shoulder ‘30'.
which is of slightly greater diameter than the portion of
the wall 26 immediately therebelow. The shoulder 30
and the adjacent portion of the curved wall 26 de?ne
therebetween a shallow, outwardly facing groove 37,
FIG. 2, for a purpose which will be hereinafter explained.
The frusto-conical breast portion 25 terminates in a‘
centrally disposed mouth or opening into which is
clinched a cup-shaped ?tting 31 which carries a dispens
ing valve 32 having a dispensing ori?ce 34 provided there
reliability of retention on the can.
The present invention provides an overcap which elim
inates the objectionable features of the heretofore used
overcaps.
An object of the invention, therefore, is the provision,
in'an aerosol can, of an overcap which not only protects
the valve mechanism, but in addition greatly enhances
the appearance of the can and provides a broad ?at stack
ing surface which permits the stacking of one can upon
another.
'
'
Another object is the provision of an overcap having
an inwardly curled bead which is snapped beneath an 45 in (see FIG. 5).
The dispensing valve 32 may be of any conventional
outwardly projecting shoulder in the breast of the can to
securely hold the overcap against inadvertent displace
ment.
.
type. ‘As a rule, such valves are designed to bring the
dispensing ori?ce 34 into communication with the in
terior of the container to dispense the product therefrom
Yet another object is the provision of such a container
and overcap construction wherein the interengaging parts 50 when lateral or downward pressure is exerted against the
valve 132. In order to prevent the inadvertent applica
may be die formed to insure uniformity of dimension, and
tion of such pressure during shipment, storage and mer
thus of ?t.
I
chandising of the ?lled container, and to permit‘ the
Still another object is to provide a snap-on overcap
stable stacking of like containers one upon the other, a
for a double seamed can which does not require mutila
tion of the top end seam, and the consequent danger of 55 cylindrical overcap 36 is provided which completely en
closes the container breast 24 and dispensing valve 32.
leakage therethrough, for its assembly to the can.
This overcap 36 is preferably formed from a drawn
Numerous other objects and advantages of the inven
one-piece metal blank and is formed with an annular de
tion will be apparent as it is better understood from the
pending side wall or skirt 3'8‘ and, a ?at top wall 40.
following description, which, taken in connection with
The lower end of the annular side wall v'38 of the over
the accompanying drawings, discloses a preferred em
cap 36 is rolled inwardly to provide an inwardly pro
bodiment thereof.
Referring to the drawings:
.
FIGURE 1 is a perspective view of a container em
bodying the principles of the instant invention;
FIG. 2 is an enlarged fragmentary sectional view taken
substantially along the line 2-2 in FIG. 1, parts being
broken away;
FIG. 3 is a plan view of a can embodying a slightly
jecting curl or bead 42 which snaps over the shoulder 30
into groove ‘37 on breast 24 Within the annular space 28
in close engagement with the upper and lower outwardly
65 extending surfaces of groove 37 beneath the shoulder.
Due to the inherent resiliency of the material from which
the overcap 36 is made, the inward curl 42 may be yield
ably snapped into groove 37 beneath the shoulder 30‘ and
also easily snapped in a reverse direction upwardly over
modi?ed form of the invention, the can being illustrated 70
the shoulder 30 to remove the overcap from the con
with its overcap removed;
tainer 10 to uncover the valve ‘32 and permit dispensing
FIG. 4 is an enlarged fragmentary sectional view, sim
3,082,234
A
3
of the container contents. As seen in FIGS. 1 and 2,
the outside diameter of the side wall or skirt 38‘ is less
than the inside diameter of countersink wall 22, whereby
the cylindrical annular side wall 38 of the overcap 36
is spaced slightly inwardly from the vertical countersink
wall. Thus su?icient clearance is provided to permit out
ward distension or ?exing of the cap curl and skirt dur
ing manual positioning of the cap on or removal of the
cap from the breast 24 by snapping the cap over the
shoulder 30.
In actual practice, this distance may vary.
from one sixteenth to one quarter of an inch, but these
"S
rial advantages, the form hereinbefore described being
merely a preferred embodiment thereof.
1 claim:
1. A dispensing container having a dispensing opening
and a protective overcap therefor, comprising a container
body having a top end, said top end including a periph
eral vertical countersink wall inwardly of the container
body, said countersink wall at its lowermost end extend~
ing laterally inwardly and merging with an upwardly
curved annular base wall of a central upstanding frusto
conical breast to de?ne an annular countersunk channel
between said base Wall and said countersink wall, said
breast terminating at its upper end in a dispensing open
inventive concept. Thus, when the overcap 36 is snapped
onto the container 10', the engagement of curl 42 with the
ing, said overcap having a top wall and a cylindrical skirt
upper and lower outwardly extending surfaces of groove 15 depending therefrom, said skirt terminating at its lower
37 prevents any free axial or “rattling” movement of the
end in an inwardly extending curl, means for con?ning
overcap relative to the container. As seen in FIGS. 5 and
said curl and the adjacent lower skirt end within said
2, the overcap top wall 40 and skirt 3% are spaced from
countersunk channel to prevent accidental dislodgement
and free of engagement with any portion of the container
of said overcap from said container, said means com
?gures are not to be considered as limitations upon the
10, the sole engagement between overcap 36 and con 20 prising a shoulder formed on said breast above said
tainer 10 constituting the frictional engagement of curl
curved base wall and disposed within said countersunk
42 with groove 37.
channel, said shoulder and the adjacent portion of said
base wall de?ning therebetween an outwardly facing
The locking shoulder 30 preferably is formed by die
action. Since it is not incorporated in the double seam
groove spaced above the bottom of said channel, said
20, it is not disturbed by the double seaming operation. 25 groove having upper and lower outwardly extending sur
faces for’ receiving and engaging said curl and retaining
Thus, its dimensions can be accurately maintained regard
less of variations in the seaming action of the closing ma
said overcap on said container against free axial move
ment relative thereto when said overcap curl is snapped
chine which forms the double seam 20. The curled bead
downwardly over said shoulder, said overcap top wall and
42 of the overcap 36 is also preferably die formed, thus
insuring accuracy of dimension so that the desired snap- ' said skirt being spaced from and free of engagement with
?t engagement between these parts can be consistently
said container, the engagement of said curl with said
groove constituting the sole engagement of said overcap
maintained in large scale commercial production.
with said container, and said skirt having an outside di
As seen in FIG. 1, the overcap 3'6 completely conceals
ameter less than the inside diameter of said countersink
the breast 24 and valve 32, thus giving a pleasing appear
ance to the container. At the same time, the ?at top 35 wall whereby said skirt is spaced from said countersink
wall for permitting outward ?exing of said skirt in snap
wall 40 of the overcap is of su?icient diameter to pro
ping said overcap over said shoulder into said groove.
vide a broad stacking surface when in stacking engage
2. The dispensing container of claim 1, wherein a plu
ment with the ?at panel of the bottom closure 14 of a
rality of circumferentially spaced arcuate shoulders are
like container, as seen in FIG. 5.
FIGURES 3 and 4 illustrate a modi?ed form of the 40 formed integrally with and extend laterally outwardly
from the lower end of said container breast for the pur
pose described.
is not continuous but is rather a discontinuous or inter
invention wherein the locking shoulder of the breast 24
rupted shoulder comprising three circumferentially spaced
shoulder portions 44 which project laterally outwardly
3. The dispensing container of claim 1, wherein said
shoulder is circumferentially continuous around said
from the bottom of the breast adjacent the top of the 4.5 breast.
curved base wall 26 and cooperate to de?ne the grooves
References Cited in the ?le of this patent
37 having the same yieldable locking action as does the
groove 37 beneath the continuous annular shoulder 30
UNITED STATES PATENTS
of FIG. 2. It will be understood that as used in the ap
pended claims, the word shoulder includes both forms 50
and all equivalents thereof.
It is thought that the invention and many of its at
tendant advantages will be understood from the fore
going description, and it will be apparent that various
changes may be made in the form, construction and ar 55
rangement of the parts without departing from the spirit
and scope of the invention or sacri?cing all of its mate
1,459,589
2,031,172
2,403,030
2,449,285
2,661,128
2,775,372
2,818,997
2,884,160
Hoffman ____________ __ June 19, 1923
Maloney ____________ __ Feb. 18, 1936
Solinsky _____________ __ July 2, 1946
Ekstrom ____________ __ Sept. 14, 1948
Rieke _______________ __ Dec. 1, 1953
Jordan _____________ __ Dec. 25, 1956
Henchert ____________ __ Jan. 7, 1958
Abplanalp __________ __ Apr. 28, 1959
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