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Патент USA US2133490

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Oct. 18, 1938.
F. SWANNELL
2,133,490
CAP OR STOPPER FOR BOTTLES OR LIKE CONTAINERS
Filed June 5, 1954
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2,133,490
Patented Oct. 18, 1938
UNITED STATES PATENT ‘OFFICE
2,133,490
CAP OR STOPPER FOR BOTTLES OR LIKE
CONTAINERS
Frederick Swannell, London, England, assignor
to The Viscose Development Company Lim
ited, Kent, England, a British company
Application June 5,1934, Serial No. 729,049
In Great Britain June 29, 1933
(Cl. 215-7)
12 Claims.
Fig. 4 is a detailed view of a portion of a
This invention relates to caps or stoppers and
slightly modi?ed form of cap.
bottles or other containers, the cap or stopper be
ing provided,
in addition to the usual screw- ~
thread, with supplementary devices, which pre
5‘ vent the cap or stopper from being removed from
the bottle, without fracture, but which still en
able the cap or stopper to function as a closure.
According to this invention the inside of the
cap carries, in addition to the usual screw threads,
10 a projection which may be in the form of a
spring pawl or pawls. This projection is adapted
to co-operate with one or more grooves or ratchet
teeth formed on or around the neck of the-bottle,
_ preferably immediately below the externally
The neck e of the bottle is formed at its upper
end with a screw-thread ,f and also with two
ratchet teeth 9 and g’. If the cap be screwed 15
onto the neck e of the bottle in a clockwise man
ner, the end d2 of the spring will ride over the
teeth g and g’ in the manner of a pawl and no
damage will be done to the cap. If, however, the
cap be unscrewed in an anti-clockwise manner 20
1‘) threaded portion of the neck. This arrangement
could obviously be reversed, the spring being
mounted on the bottle, and the groove or ratchet
member being in or on the cap. The projections
or ratchet teeth may either be moulded or
20 stamped as an integral part of the container it
self or may form part of an additional member
in the form of a disc or collar surrounding the
neck of the container.
'
-
With this arrangement when the cap is being
25 screwed home the pawl rides over the ratchet
teeth. ‘If, however, an attempt is made to un
screw the cap the reverse rotation will cause the
spring pawl or projection to engage the ratchet
teeth with consequent fracture of a portion of the
30
cap.
_
'
Whilst pilferage could be detected through the
fracture of any portion of the cap, such fracture
occurs in the supplementary skirt or depending
portion of the cap,- so that the damaged state
35 of this supplementary skirt will make it obvious
that access to the interior of the container has
previously been made available and so pilferage
could be detected. The main portion of the cap
remains intact and can therefore be used for re
40 closing the container after using a portion of the
contents.
'
The lower edge of the cap is adapted to lie
flush with a shoulder on the bottle, when the cap
is screwed home, in such manner that a tool can
45 not be inserted beneath the lower part of the
cap for the purpose of releasing the pawl, and
thus removing the cap by unscrewing without
any fracture of the cap occurring.
The invention is illustrated in the annexed
50 drawing, in which:
Fig. 1 is an elevation of a cap for a bottle.
Fig. 2 is an elevation of the neck of the bottle.
Fig. 3 is an enlarged section on the line 3-3
of Fig. 2, the cap being in position on the neck
56' of the bottle, and
In this drawing a represents a fluted and
internally screw-threaded cap having a depend
ing skirt a’ formed with two slits or saw-cuts b
which de?ne a readily frangible portion 0. The
externally fluted surface of the relatively long cap
body constitutes a grip. Insidethe skirt a’ is
placed a steel spring d of band formation, one end pa
d’ of this spring engaging in one of the slots 1),
whilst the other end cl2 of the spring is inwardly
bent.
the end 112 of the spring will jam against a tooth
and the application of further pressure will cause
fracture of the part c of the skirt a’ by the end
d’ of the spring, owing to the tendency of the
latter to force its way outwardly.
25
It is obvious that fracture of the cap would
indicate that the cap had been unscrewed from
the bottle but, owing to the fact that the threads
‘on the cap remain intact, such damaged cap can
be used again for temporary reclosure.
80
In the arrangement shown in Fig. 4, a convex
protuberance h is formed at the back of one of
the slots 12 to prevent the end (1' of the spring
from being exposed.
Alternatively, the additional thickness shown 35
at it may be extended to cover both slots or may
extend around the whole circumference of the
neck.
Having thus described the nature of the said
invention and the best means I know of carrying 40
the same into practical effect, I claim:-—
1. In a device of the class described, the com
bination of a collar adapted to removably fit on a
container and having a frangible part and a pawl
member between said collar and container and 45
substantially surrounding said container and
adapted to lock the collar to said container and _‘
to automatically break said'frangible part while
said collar is being removed.
2. In combination, an internally threaded con- 50
tainer closure of the cap type adapted to engage
an external thread on a container and to nor
mally completely cover the container opening,
the said closure having an integral peripheral
skirt portion below the thread constituting an 55
2
2,133,490
externally visible readily breakable indicator, and
a normally concealed device adapted to cooperate
with the container and with the skirt portion of
the closure and serving to break the latter when
the closure is turned on the container in the
direction to unscrew it.
3. In combination, an internally threaded con
tainer closure of the can type adapted to engage
an external thread on a container and to nor
10 mally completely cover the container opening, the
said closure having a thin integral peripheral
skirt portion positioned below the thread and.
constituting an externally visible readily break
able indicator, and a normally concealed device
adapted to cooperate with the container and with
the skirt portion of the closure and serving to
break the latter radially outward when the closure
is turned on the container in the direction to
unscrew it.
4. In combination, an internally threaded con
tainer closure of the cap type adapted to engage
an external thread on a container and to nor
container and adapted to be held against sub
stantial movement relative thereto, the said de
vice permitting iree rotative movement of the
closure in the direction to unscrew it into its nor
mal container closing position but being adapted
to automatically engage and break the indicator
skirt portion upon movement of the closure in the
opposite unscrewing direction.
8. In combination, an internally threaded con
tainer closure of the cap type adapted to en
gage an external thread on a container and to
and having an integral peripheral skirt portion
below the thread, the said skirt portion constitut
ing an externally visible readily breakable in 15
dicator and having teeth formed thereon, and a
device structurally separate from the container
and adapted to be held against a substantial
movement relative thereto, the said device per
mitting free rotative movement of the closure in 20
the direction to screw it into its normal container
mally completely cover the container opening, closing position but being adapted to automatical
the said closure having an externally visible read , ly engage and hold the teeth of the indicator skirt
ily breakable indicator consisting of an integral portion of the closure and thereby break the said
peripheral skirt portion positioned below the
thread and separated from the main threaded
body of the closure by an annular zone of weak
ness, and a normally concealed device adapted to
30 cooperate with the container and with the skirt
portion of the closure at positions separated
from the zone of weakness, the said device serv
ing to break the skirt portion when the closure
is turned on the container in the direction to un
screw it.
5. In combination, an externally threaded con
tainer having an annular bead below the thread,
an internally threaded container closure of the
cap type adapted to engage the external thread
40 on the container and to normally completely
cover the container opening, the said closure hav
ing an externally visible readily breakable indi
cator consisting of an integral peripheral skirt
portion below the thread extending downward in
45 to close proximity to the bead on the container,
and a device adapted to cooperate with the con
tainer and with the skirt portion of the closure
and serving to break the latter when the closure
is turned on the container in the direction to
50 unscrew it, the said device being above the bead
and within the skirt so that access thereto is
prevented.
6. In combination, an internally threaded con
tainer closure of the cap type adapted to engage
55 an external thread on a container and to normal
portion upon movement of the closure in the op
posite unscrewing direction.
9. In combination, a container and a cap type
closure therefor adapted to be applied thereto
and removed therefrom by a relative turning of
the container and closure, said closure compris
ing a body of substantial length providing a grip
portion enclosing the opening of the container
and a frangible ring at the inner end of the body
and comprising a readily breakable indicator and
a pawl means substantially surrounding the con
tainer and enclosed by the indicator and cooper
ating therewith to cause breakage thereof on rel
ative turning of the container and closure body in
a direction to remove the latter from the former.
10. In combination, a container and a cap type
closure therefor adapted to be applied thereto and
removed therefrom by a relative turning of the
container and closure, said closure comprising a.
body of substantial length providing a grip por
tion enclosing the opening of the container and a
frangible ring at the inner end of the body and
comprising a readily breakable indicator, said
body and indicator integral and connected only
by a zone of weakness and pawl means substan
tially surrounding the container and enclosed by
the indicator and cooperating therewith to cause
breakage thereof on relative turning of the con
tainer and closure body in a direction to remove
the latter from the former.
11. In combination, in‘ a container closure‘
means, a container closure of the cap type adapt
ed to normally completely cover the opening in a
container and having an integral peripheral skirt
portion near the bottom constituting an external 60
ly visible readily breakable indicator, and a nor
mally concealed device permitting free move
ment of the closure in the direction to bring it
ly completely cover the container opening, the said
closure having an integral peripheral skirt portion
below the thread constituting an externally visible
readily breakable indicator, a gasket carried by the
60 closure and adapted to directly engage. the con
tainer to close and seal the mouth thereof, and a
normally concealed device adapted to cooperate
with the container and with the skirt portion of
the closure and serving to break the latter when
65 the closure is turned on the container in the direc
into its normal container closing position, the said
tion to unscrew it.
7. A container closure means comprising in
bodily therewith during movement thereof and
combination, an internally threaded container
closure of the cap type adapted to engage an ex
70 ternal thread on a container and to normally
completely cover the container opening, the said
closure having an integral peripheral skirt por
tion below the thread constituting an externally
visible readily breakable indicator, and a normal
76 ly concealed device structurally separate from the
10
normally completely cover the container opening
device being connectible with the closure to move
the said device engaging the container to cause
the breaking of the indicator skirt portion of the
closure during the movement of the closure to re
70
move the latter irom the container.
12. In combination, in a container closure
means, an internally threaded container closure
of the cap type adapted to engage an external
thread on a container and to normally completely 76
2,133,490
cover the container opening, the said closure having an integral peripheral skirt portion below
the thread constituting an externally visible readily breakable indicator, and a normally concealed
device permitting free rotative movement of the
closure in the direction to screw it into its nor
mal container closing position, the said device
3
being connectible with the closure to move bodily
therewith and engaging the container to cause the
breaking of the indicator skirt portion of the
closure during the movement of the latter in the
unscrewing direction.
5
FREDERICK SWANNELL.
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