Container sealing device
First Claim
1. A container sealing device provided with an inner plug and an upper closure and enabling attachment and detachment of the upper closure by a first screwing part provided between the inner plug or the container and the upper closure, wherein:
- the upper closure has a support part catching a separation part provided in the inner plug by a second screwing part for opening the plug by separating the separation part from the rest of the inner plug;
the second screwing part is in a reverse thread relation with respect to the first screwing part;
wherein the support part comprises a first thread forming a first portion of the second screwing part, wherein the first thread comprises a barb having surfaces angled to allow and maintain engagement of the support part to the separation part and to resist disengagement of the separation part from the support part; and
wherein the separation part comprises a second thread forming a second portion of the second screwing part, wherein the second thread comprises a barb engaging with the barb of the first thread and having surfaces angled to allow and maintain engagement of the support part to the separation part and to resist disengagement of the separation part from the support part.
1 Assignment
0 Petitions
Accused Products
Abstract
The sealing device 100 of a container 1 is provided with an inner plug 10 and an upper closure 20. The inner plug 10 has a separation part 12 for forming an opening by separation. A first screwing part 51 for attachment of the upper closure 20 is provided between the inner plug 10 and the upper closure 20. The upper closure 20 has an inner cylinder part 20c which is a support part catching a separation part 12 by a second screwing part 52 in opening the plug and separating the separation part 12 from the inner plug 10. The second screwing part 52 is in a reverse thread relation with respect to the first screwing part 51 and has a barb-shape which facilitates pushing the separation part 12 into the inner cylinder part 20c rather than withdrawing the separation part from the inner cylinder part 20c.
42 Citations
8 Claims
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1. A container sealing device provided with an inner plug and an upper closure and enabling attachment and detachment of the upper closure by a first screwing part provided between the inner plug or the container and the upper closure, wherein:
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the upper closure has a support part catching a separation part provided in the inner plug by a second screwing part for opening the plug by separating the separation part from the rest of the inner plug; the second screwing part is in a reverse thread relation with respect to the first screwing part; wherein the support part comprises a first thread forming a first portion of the second screwing part, wherein the first thread comprises a barb having surfaces angled to allow and maintain engagement of the support part to the separation part and to resist disengagement of the separation part from the support part; and wherein the separation part comprises a second thread forming a second portion of the second screwing part, wherein the second thread comprises a barb engaging with the barb of the first thread and having surfaces angled to allow and maintain engagement of the support part to the separation part and to resist disengagement of the separation part from the support part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification