US4949883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One-piece plastic closure with a hinge
Assignee: Alfatechnic AG
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Filing: 1989-01-25
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Granted: 1990-08-21
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Expires: 2009-01-25
Abstract
Abstract This invention relates to a one-piece closure which has a lower part and a cap connected with a hinge. The side walls of the lower part are inclined from the cover surface to the exterior. A discharge spout penetrates the cover surface. The discharge spout is inclined and parallel to a side wall part in the area of the hinge. The specific geometry of the closure makes it possible to inject into a mold a one-piece hinge closure, with walls inclined outwardly, without using a slide unit. This invention also makes it possible to construct the lower part of the closure as a tube head.
Inventors
- 👤 Werner F. Dubach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:47
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/06; B65D47/08; B65D47/0804; B65D47/0809; B65D47/0814; B65D35/00; B65D35/24; B65D35/242; B65D35/44
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
118 words
A one-part plastic closure having a hinge, for containers, in a closed position the closure comprising: a lower part having a side wall and a sealing cover surface, said lower part having an overall shape of a truncated cone, said cover surface inclined with respect to an axis of said truncated cone, a discharge spout mounted through said cover surface, a cap hingedly connected with said lower part and sealing said discharge spout, said cap having a side wall part in which said hinge is positioned at an acute inward angle with respect to a base surface of said lower part and said discharge spout being mounted through said cover surface and parallel to said side wall part.
Claim 2
Dependent Claim
118 words
A one-part plastic closure having a hinge, for containers, in a closed position the closure comprising: a lower part having a side wall and a sealing cover surface, said lower part having an overall shape of a truncated cone, said cover surface inclined with respect to an axis of said truncated cone, a discharge spout mounted through said cover surface, a cap hingedly connected with said lower part and sealing said discharge spout, said cap having a side wall part in which said hinge is positioned at an acute inward angle with respect to a base surface of said lower part and said discharge spout being mounted through said cover surface and parallel to said side wall part.
Claim 3
Dependent Claim
24 words
A one-part plastic closure in accordance with claim 1, wherein said side wall has a wall thickness that is tapered at a lower end.
Claim 4
Dependent Claim
76 words
A one-part plastic closure in accordance with claim 1, wherein a lower spout part of said discharge spout below said cover surface has a diameter smaller than an upper spout part of said discharge spout above said cover surface, said discharge spout has openings providing communication between said discharge spout and a space below said cover surface, and said openings are positioned in a transition area of said upper spout part and said lower spout part.
Claim 5
Dependent Claim
20 words
A one-part plastic closure in accordance with claimn 1, wherein the closure has a gripping recess for opening the closure.
Claim 6
Dependent Claim
41 words
A one-part plastic closure in accorance with claim 4, wherein said cap has a wall part on a side positioned toward said hinge which is parallel to said side wall part of said lower part in an area of said hinge.
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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) | 1993-08-20 | 1994-02-19 | 1994-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-20 | 1998-02-19 | 1998-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-20 | 2002-02-19 | 2002-08-21 | $7700.00 | Window Closed / Lapsed |