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Patent Searching and Data


Title:
NONMETAL PUMPING DEVICE FOR DISCHARGING CONTENT
Document Type and Number:
WIPO Patent Application WO/2022/250220
Kind Code:
A1
Abstract:
The present invention relates to a nonmetal pumping device for discharging content, wherein the pressure necessary to return a pumping member upwards can be sufficiently secured solely by an elastic band made of a flexible material such as an elastomer, thereby improving the stability of pumping operations, and an elastic band having weak chemical resistance, in particular, does not contact the content in a container, thereby preventing the elastic band from breaking or rupturing during use. In order to accomplish the above-mentioned purpose, a nonmetal pumping device for discharging content according to the present invention comprises: a cylinder inserted into a container, having an inlet port and a filled portion, and comprising a chaplet which is coupled to the upper portion of the filled portion, and which has an elevating channel; a pumping member comprising a tube body which is inserted into the elevating channel so as to move upwards/downwards, and which has a discharge channel, a piston coupled to the lower end of the tube body so as to form a supply port and configured to hermetically seal the space between the filled portion and the elevating channel, and a stem coupled to the tube body so as to open/close the support port; and an elastic band made of a flexible material having a predetermined degree of elasticity and externally inserted into the tube body, the upper end of the elastic band being fixed to the upper end of the chaplet, the lower end of the elastic band being fixed and connected to the tube body, the elastic band having a flexible portion for exhibiting an elastic force in a compression direction, thereby returning the pumping member upwards.

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Inventors:
IM SE MI (KR)
Application Number:
PCT/KR2021/016268
Publication Date:
December 01, 2022
Filing Date:
November 09, 2021
Export Citation:
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Assignee:
IM SE MI (KR)
International Classes:
B05B11/00
Foreign References:
KR20110006853U2011-07-07
JP2018167909A2018-11-01
KR20040062305A2004-07-07
KR20210047557A2021-04-30
KR20190042264A2019-04-24
Attorney, Agent or Firm:
JUNG, Joong Won et al. (KR)
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