Title:
BLADDER-TYPE DISPENSING PUMP
Document Type and Number:
WIPO Patent Application WO/2021/093900
Kind Code:
A1
Abstract:
A bladder-type dispensing pump (100) comprises a push nozzle (110) and a container cap (120), said nozzle (110) and cap (120) being interconnected. The push nozzle (110) is provided with a bladder portion (111). The bladder portion (111) is able to deform such that the volume of the internal cavity thereof may change. The bladder-type dispensing pump (100) is further provided with an elastic return mechanism. A portion of the elastic return mechanism is connected to or in contact with the bladder portion (111). When the bladder portion (111) is depressed so as to deform, the elastic return mechanism deforms with it, and when pressure acting on the bladder portion (111) is removed, the elastic return mechanism returns to its non-deformed state, causing the bladder portion (111) to reset.
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Inventors:
DING YAOWU (CN)
Application Number:
PCT/CN2020/140630
Publication Date:
May 20, 2021
Filing Date:
December 29, 2020
Export Citation:
Assignee:
DING YAOWU (CN)
International Classes:
B65D47/34; B05B11/00; B05B11/02
Foreign References:
| CN211811088U | 2020-10-30 | |||
| CN105083730A | 2015-11-25 | |||
| KR100484052B1 | 2005-05-06 | |||
| CN102452524A | 2012-05-16 | |||
| US20100200615A1 | 2010-08-12 |
Other References:
See also references of EP 4089029A4
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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