Title:
PUMP ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2023/003387
Kind Code:
A1
Abstract:
A pump assembly is provided according to an embodiment of the present invention. The pump assembly may comprise: a cylinder having a suction port formed through the lower end thereof; a piston ascending or descending in the cylinder and having an introduction port formed through one side thereof; a seal cap for opening or closing the introduction port while ascending or descending in the cylinder in a state of being in close contact with the inner wall of the cylinder; a stem coupled to the piston, ascending or descending together with the piston, and having a discharge port formed through the upper end thereof; a cylinder cap coupled to the upper side of the cylinder to surround the outside of the stem; a first elastic member disposed between the seal cap and the stem in the cylinder; and a second elastic member disposed between the cylinder cap and the stem outside the cylinder.
Inventors:
CHOE SEONG UNG (KR)
Application Number:
PCT/KR2022/010692
Publication Date:
January 26, 2023
Filing Date:
July 21, 2022
Export Citation:
Assignee:
YONWOO CO LTD (KR)
International Classes:
B05B11/00
Foreign References:
| KR101233080B1 | 2013-02-14 | |||
| KR102206983B1 | 2021-01-25 | |||
| KR20160097607A | 2016-08-18 | |||
| KR102186042B1 | 2020-12-03 | |||
| KR20150112650A | 2015-10-07 | |||
| US6685062B1 | 2004-02-03 |
Attorney, Agent or Firm:
HAEUM PATENT & LAW FIRM (KR)
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