Patent US5074425A successfully refreshed from Google Patents.
US5074425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic closure cap
Assignee: Crown Cork AG
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Filing: 1991-04-04
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Granted: 1991-12-24
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Expires: 2011-04-04
Abstract
Abstract A closure cap made of plastic is provided with an anti-tamper strip. The closure cap and the anti-tamper strip are connected together by connecting ribs. The connecting ribs are weakened on a side which is oriented towards a prescribed tearing position.
Inventors
- 👤 Gunter Wustmann
- 👤 Michael Kirchgessner
- 👤 Thomas Bartl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:09
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32; B65D41/34; B65D41/3442; B65D41/3447
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
89 words
A closure cap made from plastic comprising: an anti-tamper strip which may be brought into contact with one or more retaining elements on a container neck, said strip having at least one position (P) on its circumference; a plurality of connecting ribs joining said strip to said cap and which break or tear when the container is being opened for the first time, said ribs having a cross section which is weaker on the side oriented towards said position (P) than on the side oriented away from said position.
Claim 2
Dependent Claim
89 words
A closure cap made from plastic comprising: an anti-tamper strip which may be brought into contact with one or more retaining elements on a container neck, said strip having at least one position (P) on its circumference; a plurality of connecting ribs joining said strip to said cap and which break or tear when the container is being opened for the first time, said ribs having a cross section which is weaker on the side oriented towards said position (P) than on the side oriented away from said position.
Claim 3
Dependent Claim
52 words
The closure cap according to claim 1 wherein said position (P) is the position of the commencement of tearing on the circumference of the anti-tamper strip, and wherein at least the connecting ribs neighboring the position (P) exhibit a cross section which is weakened on the side oriented towards the position (P).
Claim 4
Dependent Claim
25 words
The closure cap according to claim 2 wherein the cross section of the connecting ribs diminishes towards the position (P) of the commencement of tearing.
Claim 5
Dependent Claim
35 words
The closure cap according to claim 2 wherein the connecting ribs are approximately wedge shaped in cross section, whereby the tip of the wedge is oriented toward the position (P) of the commencement of tearing.
Claim 6
Dependent Claim
26 words
The closure cap according to claim 4 wherein the wedge angle of the cross section of said connecting ribs ranges between approximately 15° and 30° .
Claim 7
Dependent Claim
15 words
The closure cap according to claim 5 wherein the wedge angle is approximately 20° .
Claim 8
Dependent Claim
71 words
The closure cap according to claim 2 wherein the anti-tamper strip, on a side approximately opposite the position (P) of the commencement of tearing of the antitamper strip, is provided with at least one rib section which firmly connects the anti-tamper strip with the cap and which extends through a defined arc about the circumference of the closure cap to thereby determine the position (P) of the prescribed commencement of tearing.
Claim 9
Dependent Claim
14 words
The closure cap according to claim 7 having at least such two rib sections.
Claim 10
Dependent Claim
17 words
The closure cap according to claim 7 wherein said defined arc ranges between approximately 180° -240° .
Claim 11
Dependent Claim
16 words
The closure cap according to claim 7 wherein said defined arc ranges between 180° -210° .
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-12-23 | 1995-06-24 | 1995-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-23 | 1999-06-24 | 1999-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-23 | 2003-06-24 | 2003-12-24 | $7700.00 | Window Closed / Lapsed |