Title:
AIRLESS CONTAINER
Document Type and Number:
WIPO Patent Application WO/2020/049612
Kind Code:
A1
Abstract:
The airless container according to the present invention comprises a cylindrical container body 12 that can store liquid contents in an airtight manner, and a pump 16 that is mounted to an upper end 12a of the container body 12 and discharges the contents to the outside. This airless container also includes a bottom cap 22 that covers a lower opening 18 on a container bottom section 12b of the container body 12 and a piston 20 that is disposed inside the container 12 between the pump 16 and the bottom cap 22 so as to slide into the container 12 in an airtight manner. The piston 20 includes a deformable flexible piece 26 on the part where the bottom cap 22 can touch. The flexible piece 26 is provided to be deformable with respect to the sliding motion of the piston 20 toward the bottom cap 22.
Inventors:
SHIMAKURA KATSUNORI (JP)
TAKAOKA MASAYOSHI (JP)
NAGAO TATSURO (JP)
TAKAOKA MASAYOSHI (JP)
NAGAO TATSURO (JP)
Application Number:
PCT/JP2018/032596
Publication Date:
March 12, 2020
Filing Date:
September 03, 2018
Export Citation:
Assignee:
KITANO CO LTD (JP)
KAKEN PHARMA CO LTD (JP)
KAKEN PHARMA CO LTD (JP)
International Classes:
B65D83/76
Domestic Patent References:
| WO2007123207A1 | 2007-11-01 |
Foreign References:
| JP2008162669A | 2008-07-17 | |||
| JPH08268460A | 1996-10-15 | |||
| JP2010105683A | 2010-05-13 | |||
| JP2014221664A | 2014-11-27 | |||
| JP2013529093A | 2013-07-18 | |||
| US20130193166A1 | 2013-08-01 | |||
| JPH08282708A | 1996-10-29 |
Attorney, Agent or Firm:
HIROSAWA Isao (JP)
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