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 in opening the plug and separating the separation part from the inner plug; and
the second screwing part is in a reverse thread relation with respect to the first screwing part and has a barb-shaped protrusion which facilitates pushing the separation part into the support part rather than withdrawing 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.
-
Citations
8 Claims
-
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 in opening the plug and separating the separation part from the inner plug; and the second screwing part is in a reverse thread relation with respect to the first screwing part and has a barb-shaped protrusion which facilitates pushing the separation part into the support part rather than withdrawing the separation part from the support part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
Specification