Patent CH347009A successfully refreshed from Google Patents.
Patent US4161258A successfully refreshed from Google Patents.
US4161258A
Expired / Lapsed
US
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Stopper arrangement for bottles
Assignee: Albert Obrist AG
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Filing: 1978-03-28
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Granted: 1979-07-17
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Expires: 1998-03-28
Abstract
Abstract In a stopper arrangement for bottles of the type having an externally threaded neck closable by a synthetic plastic screw cap, the screw cap has an approximately cylindrical internally threaded wall part which is closed by an upper lid surface. The screw cap is so dimensioned and configured, and is formed of such an elastic plastic material, that the cap can be removed by unscrewing, or can be removed by a conventional crown cork opener. In either case, the cap can be used to re-close the bottle, since it is specially constructed so as not to be destroyed if removed by a crown cork opener. Important features of the screw cap involve the number of threads, the pitch angle of the threads, the thread depth, the thickness of the cylindrical wall part, the provision of a protruding section engageable by the lifting portion of a crown cork opener, the distance between the lid surface and the protruding section, and the elasticity of the plastic material considered in conjunction with the dimensions and configuration of the cap. The inner side of the lid surface preferably is formed with a sealing member which extends into the bottle opening.
Inventors
- 👤 Albert Obrist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:49
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/0485; B65D41/0407; B65D41/0414; B65D2251/00; B65D2251/02; B65D2251/023
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
156 words
Stopper arrangement for bottles, comprising a bottle having an externally threaded neck which is closed by a synthetic plastic screw cap, the screw cap having an approximately cylindrical internally threaded wall part which is closed by an upper lid surface, the external threading of the bottle neck and the internal threading of the screw cap having at least two thread turn segments which rise at an angle less than 30°, the screw cap having on its circumference at least a section protruding sufficiently outwardly from the bottle neck for the application of the lifting portion of a crown cork opener, the distance of the protruding section from the upper lid surface of the screw cap being not greater than the clear internal width of a crown cork opener, and the cylindrical wall part being of such elastic formation that the stopper cap can be vertically lifted and opened by a crown cork opener without screwing movement.
Claim 2
Dependent Claim
156 words
Stopper arrangement for bottles, comprising a bottle having an externally threaded neck which is closed by a synthetic plastic screw cap, the screw cap having an approximately cylindrical internally threaded wall part which is closed by an upper lid surface, the external threading of the bottle neck and the internal threading of the screw cap having at least two thread turn segments which rise at an angle less than 30°, the screw cap having on its circumference at least a section protruding sufficiently outwardly from the bottle neck for the application of the lifting portion of a crown cork opener, the distance of the protruding section from the upper lid surface of the screw cap being not greater than the clear internal width of a crown cork opener, and the cylindrical wall part being of such elastic formation that the stopper cap can be vertically lifted and opened by a crown cork opener without screwing movement.
Claim 3
Dependent Claim
40 words
Stopper arrangement according to claim 1, wherein the threading comprises at least four thread turn segments, and in that the end of each thread turn segment overlaps the beginning of the next succeeding thread turn segment by less than 45°.
Claim 4
Dependent Claim
28 words
Stopper arrangement according to claim 2 wherein the end of each thread turn segment overlaps the beginning of the next succeeding thread turn segment by less than 30°.
Claim 5
Dependent Claim
18 words
Stopper arrangement according to claim 1 wherein the thread turn segments rise at an angle less than 15°.
Claim 6
Dependent Claim
23 words
Stopper arrangement according to claim 1 wherein said protruding section is the lower edge of the cylindrical wall part of the screw cap.
Claim 7
Dependent Claim
111 words
Stopper arrangement as claimed in claim 1 wherein said screw cap has sealing means sealing said bottle, and wherein the formation of the threads, the distance between the lid surface and said protruding section, and the configuration and elasticity of said approximately cylindrical wall part are so related that the cap can be engaged and removed from the bottle by a crown cork opener without screwing movement and without damage to said wall part such as would preclude remounting of said cap by screwing to reseal said bottle, whereby said cap can be removed by unscrewing or by a crown cork opener, and can be thereafter remounted to reseal said bottle.
Claim 8
Dependent Claim
154 words
A synthetic plastic screw cap for bottles having a threaded neck, comprising a generally cylindrical internally threaded wall part which is closed by an upper lid surface, said threaded wall part having at least three internal threading segments so adapted and dimensioned as to engage with corresponding external threading segments on a bottle neck, the pitch angle of said internal threading segments being less than 10°, said wall part having a section protruding outwardly sufficiently so as to be engageable by the lifting portion of a crown cork opener, said cap being so configured and dimensioned and consisting of such an elastic synthetic plastic material that it can be engaged and removed by a crown cork opener without screwing movement over the corresponding thread turns of a bottle with which it is threadedly engaged without destrucion of said wall part such as would preclude remounting of said cap by screwing to reseal a bottle.
Claim 9
Dependent Claim
154 words
A synthetic plastic screw cap for bottles having a threaded neck, comprising a generally cylindrical internally threaded wall part which is closed by an upper lid surface, said threaded wall part having at least three internal threading segments so adapted and dimensioned as to engage with corresponding external threading segments on a bottle neck, the pitch angle of said internal threading segments being less than 10°, said wall part having a section protruding outwardly sufficiently so as to be engageable by the lifting portion of a crown cork opener, said cap being so configured and dimensioned and consisting of such an elastic synthetic plastic material that it can be engaged and removed by a crown cork opener without screwing movement over the corresponding thread turns of a bottle with which it is threadedly engaged without destrucion of said wall part such as would preclude remounting of said cap by screwing to reseal a bottle.
Claim 10
Dependent Claim
22 words
A screw cap according to claim 7, wherein the thread profile height of the internal threading segments is less than 1.0 mm.
Claim 11
Dependent Claim
22 words
A screw cap according to claim 7, wherein the thread profile height of the internal threading is from 0.6 to 0.8 mm.
Claim 12
Dependent Claim
24 words
A screw cap according to claim 7, wherein the wall thickness of the cylindrical part in the threading zone is less than 1.5 mm.
Claim 13
Dependent Claim
16 words
A screw cap according to claim 10, wherein the wall thickness amounts to about 1.0 mm.
Claim 14
Dependent Claim
15 words
A screw cap according to claim 7, wherein the screw cap consists of low-pressure polyethylene.
Claim 15
Dependent Claim
14 words
A screw cap according to claim 7, wherein the screw cap consists of polypropylene.
Claim 16
Dependent Claim
70 words
A screw cap according to claim 7, wherein the screw cap comprises a cylindrical internal seal part, the external diameter of which is so designed and adapted to the internal diameter of a bottle neck as to seal the latter, and in that the inner seal part has a seal section which is arranged at a distance of at least 1.0 mm from the inside of said upper lid surface.
Claim 17
Dependent Claim
20 words
A screw cap as claimed in claim 7, wherein the thread pitch angle is from about 6° to about 7°.
Claim 18
Dependent Claim
70 words
A screw cap according to claim 7 wherein the cylindrical wall part is ribbed on the outside to increase the grip quality, and in that the ribs and/or the wall part itself are thicker at the lower edge of the cap than at the upper edge in such a way that the lower edge section thus formed serves for the application of the lifting portion of a crown cork opener.
Claim 19
Dependent Claim
21 words
A screw cap as claimed in claim 7 wherein the height of the screw cap is not more than 14 mm.
Claim 20
Dependent Claim
19 words
A screw cap as claimed in claim 17 wherein the height of the screw cap is about 9 mm.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-07-16 | 1983-01-15 | 1983-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-16 | 1987-01-15 | 1987-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-16 | 1991-01-15 | 1991-07-17 | $7700.00 | Window Closed / Lapsed |