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Патент USA US2132944

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Oct. 11, 1938.
S. FREEMAN
2,132,944
METAL CLOSURE AND CAP FOR JARS, BOTTLES, AND THE LIKE
\
Filed Feb. 11, 1935
INVEN TOR.
A TTORNEYS.
Patented Oct. 11, 1938
v
C11
PAT
2,132,944 Y
’
MET‘AL‘ ‘CLOSURE AND we lion.v mas,
BOTTLES, AND THE LIKE
Samuel Freeman, New York, N.'Y.
Application February 11, 1935,‘ Serial No. 5,891
3 Claims. .(Cl. 215-46)
This invention relates to improvements in then folding same, and then forming the sides
,
metal closures and caps for jars, bottles and the from the cut out blank.
It is desirable in the forming of the cap to
like of the type where the closure is hermetically
sealed to the container through the medium of 'emboss or raise the fold H at one point slightly,
preferably near the edge of the cap to permit
5 a rubber gasket or the like, and normally the
cap or ‘closure rests upon the container under the insertion of a tool of some kind to distort
pressure caused by the introduction of a vacuum the fold‘ II "when the cap is to be removed.
The reference numeral ll indicates a rubber
into the container or otherwise.
A particular object of this invention is‘ the " gasket, by which the cap is hermetically sealed
10
10 provision of a novel- form of cap or closure for under'pressure to the body of the container [8.
The ?nished cap is indicated as I9.
jars, bottles and the like which can be easily
‘In the type of _ cap, as at present manufac
released from the container to which it is at
tured, the cap is loosened from the container by
tached.
‘
Other objects of my invention will be set forth the use of a tool operating upon the lower edge
15
15 in the following description and drawing which ,of the side l6 and it has ‘been found in practice
illustrates a'preferred embodiment thereof, it ‘ that the operation of loosening such caps espe
being understood that the above statements of cially in the small sizes thereof, is a difficult and
the objects of my invention are intended to gen; cumbersome ‘one. The principal object of my
20
erally explain the, same without limiting it in invention is to provide a cap in which the opera 20
tion of loosening the cap from the container is
.
_
any manner.
In thegdrawing:
easier than in the conventional type and in which
'
Fig. 1 is a» plan view-of astrip of material from
which my improved cap is made.
‘
tion to which the strip of material shown in Fig. i
>
.
Fig. 3 is a sectional view along the line 3-3
of Fig. 2.
r
Fig. 4 is a side elevation
‘of cap‘ and jar to
'
Fig. 5 is a top plan view of Fig. 4.
30 which it is attached.
I
>
.
Fig. 6 is an inverted plan view of the cap alone.
Fig. '7 is a sectional View partially broken away,
of the top of Fig. 4 showing. the cap and the
35 method of its attachment to the container.
Fig. 8 is a sectional View,‘ partially broken away,
of the same type of cap but showing another
form of container.
,
cap will be distorted so as to bring the lower edge.
l6 of thecap away from the contiguous portion
of the container so as to permit the introduction
of air into the container.
'
When the air is once introduced the cap may 35
be easily lifted oil‘.
'
‘
~
In Fig. 9 I have indicated in a dotted line how
thereof is bent so as to allow the introduction
12.
.
r
‘
‘
> of this type than where the force must be exerted
In contrast to the type of cap used atthe upon the edge and side of the cap as in the 45
present time, this cap although it is stamped.
into form from a metal blank, is formed by mak
50
point 20.
By lifting the tool against the'loweredge of’
the fold H, the entire folded portion and the 30
40
.
The reference numeral Ill indicates the strip of air into the container.
of material which is folded to produce the fold . ‘ It is apparent that'it is possible to get con
II, and out of which is cut a blank along the siderably more leverage upon the fold of a cap
line
45
_
In order, to remove the cap, a tool 2|, shown
in Fig. .5,.with a sharp point on same, such as
a knife-edge,’or the like, is introduced at the
the fold, a portion of the cap, including the side
_
r Fig. 9 is a front elevation of the cap alone.‘ .
110
applied to the top of the cap itself instead of
upon the side of same.
Fig. 2 is a plan view showing the ?rst opera
1 is subjected.
the force’ necessary to remove such cap may be
present'conventional formrand the possibility of
breakingrthe glass is also avoided.
ing separate folds, consisting of the original layer
I have shown a preferred embodiment of my
‘ l0 andthe additional layers l4 and 15 caused by , invention, butit is clear that numerous changes
the lapping of the fold II to securev a substan; and‘ omissions may be made without departing
50
‘ tially ?at surface for the entire body of the cap. 7
After the operation of folding, \the unit is
from its spirit.
It should, be ,‘noted also that the lapped or
stamped to provide a ?nished cap- with depend- '
folded portion of the capin this embodiment is
ent sides l6 as shown in Figs. 4,6 and 7. 1
,
It is apparent also that it‘is possible to pro .part of the side. and extends to the bottom of
65
the ?ange.
55 vide a ?nished cap by ?rst cutting a flat blank,
2,132,944
Having fully described my invention, what I
claim is:
tion with said ?ange, the body of said cap being
bent‘, upon itself to form a continuous fold or
1. A closure for jars and the like comprising ' lapped portion extending transversely of said
a metallic cap having a substantially ?at top
and a dependent ?ange engaging the sides of
said jar, a gasket co-operating with the edge of
said ?ange to form an air-tight closure, and a
fold on said cap, said fold extending continuously
across the top‘ of the cap’ and ?ange,
10
2. A closurefor jars and'the like consisting
cap and ?ange, said fold being adapted to re
ceive a tool by which the cap may be disengaged
from said jar.
'
3. A closure-for jars and the like comprising
a metallic cap having a dependent ?ange engag
ing the sides of the jar, said cap having a sub
stantially ?at fold extending continuously across 10
of a metallic cap and a downwardly extending the top of the cap and ?ange.
?ange engaging the sides of said jar, means on a
said jar forming an air-tight closure in co-bpera
SAMUEL FREEMAN.
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