CA1334659C - Cap for closing by screwing-on a container, the neck of which is provided with a tearable lid - Google Patents
Cap for closing by screwing-on a container, the neck of which is provided with a tearable lidInfo
- Publication number
- CA1334659C CA1334659C CA000534615A CA534615A CA1334659C CA 1334659 C CA1334659 C CA 1334659C CA 000534615 A CA000534615 A CA 000534615A CA 534615 A CA534615 A CA 534615A CA 1334659 C CA1334659 C CA 1334659C
- Authority
- CA
- Canada
- Prior art keywords
- cap
- lid
- container
- neck
- blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D51/00—Closures not otherwise provided for
- B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
- B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
- B65D51/22—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure
- B65D51/221—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure a major part of the inner closure being left inside the container after the opening
- B65D51/222—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure a major part of the inner closure being left inside the container after the opening the piercing or cutting means being integral with, or fixedly attached to, the outer closure
- B65D51/225—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure a major part of the inner closure being left inside the container after the opening the piercing or cutting means being integral with, or fixedly attached to, the outer closure and further comprising a device first inhibiting displacement of the outer closure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2251/00—Details relating to container closures
- B65D2251/0003—Two or more closures
- B65D2251/0006—Upper closure
- B65D2251/0015—Upper closure of the 41-type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2251/00—Details relating to container closures
- B65D2251/0003—Two or more closures
- B65D2251/0068—Lower closure
- B65D2251/0093—Membrane
Abstract
There is described a cap for closing by screwing-on a container, the neck of which is provided with a tearable lid, which cap is provided inwardly with a helical blade which as the cap is being screwed down on the container neck, enters said lid and cuts away part thereof, whereby said blade has a so-called "back" end, when considering the blade rotation direction, which is curved inwards relative to the helical blade, to raise the lid.
Fig. 1.
Fig. 1.
Description
This invention relates to a cap for closing a container by screwing onto the container neck which is sealed by a tearable lid.
The object of the invention is to provide a cap wherewith the user, after rotating said cap, may easily grip part of the lid and effect complete tearing-off thereof.
According to the invention there is provided a screw-threaded cap for closing a container, said container having a neck that is formed with a screw-thread for engagement by the screw-thread on the cap, said neck being sealed by a tearable lid,wherein said cap has on an inner side thereof a helical blade, which blade is adapted to enter into cutting engagement with the lid as the cap is screwed down on the container neck, continued rotation of the cap being effective to form a cut part in the lid, said blade having a so-called "back end" which when considered in relation to the direction of rotation of the blade is curved inwardly relative to the blade to effect raising of the cut part of the lid.
Preferably the closure cap has at the bottom thereof a tearable ring which is adapted to bear on the container and prevent untimely screwing of the cap to cause the blade to enter and cut the lid.
Other details and advantages of the invention will stand out from the following description, given by way of non-limitative example and with reference to the accompanying drawings, in which:
Figure 1 is a section view of a closure cap clipped on a container neck, and before tearing the safety strip away.
Figure 2 is a top view showing both the cut lid and the .' ~
_ 2 1334659 71224-1 helical blade from the cap as shown in Figure 1.
The cap 1 as shown in the above figures, is provided with a first so-called clip-on projection 2, intended to enclose the outer projection 3 on the neck 4 from container 5.
To the top portion of the container neck 4, there is sealed by a conduction-welding process, a lid 6 which has been secured previously to screwing the cap 1 onto the container neck 4.
The neck 4 of the container 5 is provided with an outer screw-thread 7 for cooperating with an inner screw-thread 8 inside the cylindrical portion 9 of the cap 1.
On the other hand, the cylindrical portion 9 of cap 1 has a safety or tearable ring 10, provided with a tear strip 11.
As long as ring 10 has not been torn-off, the cap 1 can not be driven into lid 6.
The essential feature of the closure cap according to the invention is the presence on the inner surface of cap 1, of a helical blade 12. The helical blade 12 has the feature that the so-called "back" end 12' thereof is slightly curved inwardly relative to the helix.
This means that as cap 1 is being screwed down on the neck 4 of container 5 by a cooperation of screw-threads 7 and 8, the helical blade 12 is driven into lid 6 and cuts therein a notch of such shape that the user can grip the notch and tear the lid completely off. This is made all the easier as the curved portion 12' from helical blade 12 raises the cut notch of the lid slightly upwards. After unscrewing the cap, the user easily grips said raised cut portion of the lid and can tear it completely off.
.. . ...
_ 3 1 3~ q6~9 71224-1 It is indeed known that the lids which seal bottles or containers are often cut with a knife and it is then very difficult for the user to grip part of the lid to tear it completely off, while by means of the cap according to the invention provided with the helical blade, such tearing operation is made much easier.
The screw-thread used is quite clearly a fast thread which does not allow rotation of the cap by more than 360 during the cutting operation, since otherwise the cut portion of the lid would be completely cut-off, which is not the object of this invention.
It must be understood that the invention is not limited to the above embodiments and that many changes might be brought thereto without departing from the scope of the invention as defined by the appended claims.
~......
The object of the invention is to provide a cap wherewith the user, after rotating said cap, may easily grip part of the lid and effect complete tearing-off thereof.
According to the invention there is provided a screw-threaded cap for closing a container, said container having a neck that is formed with a screw-thread for engagement by the screw-thread on the cap, said neck being sealed by a tearable lid,wherein said cap has on an inner side thereof a helical blade, which blade is adapted to enter into cutting engagement with the lid as the cap is screwed down on the container neck, continued rotation of the cap being effective to form a cut part in the lid, said blade having a so-called "back end" which when considered in relation to the direction of rotation of the blade is curved inwardly relative to the blade to effect raising of the cut part of the lid.
Preferably the closure cap has at the bottom thereof a tearable ring which is adapted to bear on the container and prevent untimely screwing of the cap to cause the blade to enter and cut the lid.
Other details and advantages of the invention will stand out from the following description, given by way of non-limitative example and with reference to the accompanying drawings, in which:
Figure 1 is a section view of a closure cap clipped on a container neck, and before tearing the safety strip away.
Figure 2 is a top view showing both the cut lid and the .' ~
_ 2 1334659 71224-1 helical blade from the cap as shown in Figure 1.
The cap 1 as shown in the above figures, is provided with a first so-called clip-on projection 2, intended to enclose the outer projection 3 on the neck 4 from container 5.
To the top portion of the container neck 4, there is sealed by a conduction-welding process, a lid 6 which has been secured previously to screwing the cap 1 onto the container neck 4.
The neck 4 of the container 5 is provided with an outer screw-thread 7 for cooperating with an inner screw-thread 8 inside the cylindrical portion 9 of the cap 1.
On the other hand, the cylindrical portion 9 of cap 1 has a safety or tearable ring 10, provided with a tear strip 11.
As long as ring 10 has not been torn-off, the cap 1 can not be driven into lid 6.
The essential feature of the closure cap according to the invention is the presence on the inner surface of cap 1, of a helical blade 12. The helical blade 12 has the feature that the so-called "back" end 12' thereof is slightly curved inwardly relative to the helix.
This means that as cap 1 is being screwed down on the neck 4 of container 5 by a cooperation of screw-threads 7 and 8, the helical blade 12 is driven into lid 6 and cuts therein a notch of such shape that the user can grip the notch and tear the lid completely off. This is made all the easier as the curved portion 12' from helical blade 12 raises the cut notch of the lid slightly upwards. After unscrewing the cap, the user easily grips said raised cut portion of the lid and can tear it completely off.
.. . ...
_ 3 1 3~ q6~9 71224-1 It is indeed known that the lids which seal bottles or containers are often cut with a knife and it is then very difficult for the user to grip part of the lid to tear it completely off, while by means of the cap according to the invention provided with the helical blade, such tearing operation is made much easier.
The screw-thread used is quite clearly a fast thread which does not allow rotation of the cap by more than 360 during the cutting operation, since otherwise the cut portion of the lid would be completely cut-off, which is not the object of this invention.
It must be understood that the invention is not limited to the above embodiments and that many changes might be brought thereto without departing from the scope of the invention as defined by the appended claims.
~......
Claims (4)
1. A screw-threaded cap for closing a container, said container having a neck that is formed with a screw-thread for engagement by the screw-thread on the cap, said neck being sealed by a tearable lid, wherein said cap has on an inner side thereof a helical blade, which blade is adapted to enter into cutting engagement with the lid as the cap is screwed down on the container neck, continued rotation of the cap being effective to form a cut part in the lid, said blade having a so-called "back end" which when considered in relation to the direction of rotation of the blade is curved inwardly relative to the blade to effect raising of the cut part of the lid.
2. A closure cap as claimed in claim 1 having at a lower end thereof a tearable ring, said ring being adapted to bear on the container to prevent untimely screwing of the cap on the neck to a position to move said helical blade into cutting engagement with said lid.
3. A closure cap as claimed in claim 1 in which the cap has a clip-on projection that is adapted to engage an outer projection on the container neck.
4. A closure cap as claimed in any one of claims 1 to 3 wherein said screw-threads are designed so to limit rotation of the cap to less than 360° after the blade has been moved into cutting engagement with the lid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE0/216911A BE905095A (en) | 1986-07-11 | 1986-07-11 | Screw cap for sealed bottles - has internal spiral blade, with inwards curved inner end, breaking and lifting seal |
| BEPV0/216911 | 1986-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1334659C true CA1334659C (en) | 1995-03-07 |
Family
ID=3844058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000534615A Expired - Fee Related CA1334659C (en) | 1986-07-11 | 1987-04-14 | Cap for closing by screwing-on a container, the neck of which is provided with a tearable lid |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0252532B1 (en) |
| AT (1) | ATE53809T1 (en) |
| CA (1) | CA1334659C (en) |
| DE (1) | DE3762505D1 (en) |
| ES (1) | ES2014463B3 (en) |
| GR (1) | GR3000556T3 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2673601B1 (en) * | 1991-03-08 | 1993-05-28 | Astra Plastique | PLUG WITH INTEGRATED CUTTING DEVICE, EQUIPPED WITH A GUARANTEE RING. |
| SE468893B (en) * | 1991-09-04 | 1993-04-05 | Tetra Alfa Holdings | OPENING DEVICE FOR PACKAGING CONTAINERS |
| SE469025B (en) * | 1991-09-04 | 1993-05-03 | Tetra Alfa Holdings | OPENING DEVICE FOR A PACKAGING CONTAINER |
| CN102874470A (en) * | 2012-09-17 | 2013-01-16 | 苏州市职业大学 | Safe and healthful bottle cap |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB621940A (en) * | 1947-03-01 | 1949-04-22 | Maurice Walter Hipperson | A tool for use in removing the cardboard or like lid of a milk bottle |
| FR2049485A5 (en) * | 1969-06-11 | 1971-03-26 | Tard Francois | |
| DE2153446A1 (en) * | 1971-10-27 | 1973-05-03 | Friedrich Mahne | CONTAINER LID |
| DE2332155C3 (en) * | 1973-06-25 | 1984-08-02 | Robert Finke Kunststoff-Spritzguss-Werk, 5950 Finnentrop | Screw cap closure for bottles, tubes, etc. container |
-
1987
- 1987-03-25 AT AT87200542T patent/ATE53809T1/en not_active IP Right Cessation
- 1987-03-25 EP EP87200542A patent/EP0252532B1/en not_active Expired - Lifetime
- 1987-03-25 DE DE8787200542T patent/DE3762505D1/en not_active Expired - Lifetime
- 1987-03-25 ES ES87200542T patent/ES2014463B3/en not_active Expired - Lifetime
- 1987-04-14 CA CA000534615A patent/CA1334659C/en not_active Expired - Fee Related
-
1990
- 1990-06-13 GR GR90400374T patent/GR3000556T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES2014463B3 (en) | 1990-07-16 |
| DE3762505D1 (en) | 1990-06-07 |
| ATE53809T1 (en) | 1990-06-15 |
| EP0252532B1 (en) | 1990-05-02 |
| GR3000556T3 (en) | 1991-07-31 |
| EP0252532A1 (en) | 1988-01-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |