Title:
DRAIN VALVE
Document Type and Number:
WIPO Patent Application WO/2011/046286
Kind Code:
A2
Abstract:
A drain valve of the present invention comprises: a body portion having a fixing valve installed vertically through a water tank, an inlet valve coupled to a top of the fixed valve to communicate therewith, and an inlet defined in an outer periphery of the inlet valve to communicate with the water tank; a first drain portion slidably coupled vertically in the inlet valve to selectively open and close the inlet, defining a hollow space within, and defining a first drain hole and a second drain hole in an outer periphery and lower surface thereof, for communicating with an inner periphery of the inlet valve; and a second drain portion slidably coupled vertically to an inner periphery of the first drain portion, for opening the inlet by moving the first drain portion along a movable range thereof or selectively opening or closing the second drain hole to perform draining at mutually different flow rates.
Inventors:
MIN, Young Jun (110-703, GS Gangdong Xi Apt.,474, Gil-dong, Gangdong-gu, Seoul 134-010, 134-010, KR)
Application Number:
KR2010/004711
Publication Date:
April 21, 2011
Filing Date:
July 19, 2010
Export Citation:
Assignee:
ROOT SCIENCE CO., LTD. (269-6, Amsa-dong Gangdong-gu, Seoul 134-050, 134-050, KR)
주식회사 루트싸이언스 (서울 강동구 암사동 269-6, 134-050 Seoul, 134-050, KR)
주식회사 루트싸이언스 (서울 강동구 암사동 269-6, 134-050 Seoul, 134-050, KR)
International Classes:
E03D1/34; E03D1/14
Attorney, Agent or Firm:
SONG, Bong-Sig et al. (Y.S. Chang & Associates, 6F Kangnam Landmark Tower,837-36 Yeoksam-dong, Kangnam-ku, Seoul 135-937, 135-937, KR)
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