公开(公告)号：US09995402B2

公开(公告)日：2018-06-12

申请号：US15230640

申请日：2016-08-08

Applicant: PRESYS.CO.,LTD ,  PSK INC.

Inventor： Bae-Jin Kim ,  Ki Sun Choi ,  Kang Hyun Kim ,  Sang Min Kim ,  Sun Yeol Seo

IPC: F16K3/18 ,  F16K3/02 ,  F16K3/314 ,  F16K3/316 ,  F16K51/02

CPC classification number: F16K3/184 ,  F16K3/0218 ,  F16K3/0281 ,  F16K3/029 ,  F16K3/182 ,  F16K3/314 ,  F16K3/3165 ,  F16K51/02

Abstract: Disclosed herein is an upper housing 100 having openings that are respectively defined in a front surface and a rear surface thereof and in which first and second moving paths 110 and 120 are defined; a first blade 200 installed in the upper housing 100 to move upward from a lower side, thereby opening/closing the first moving path 110; a first shaft 300 coupled to a lower portion of the first blade 200; a lower housing 400 disposed below the upper housing 100, in which a rotation guide groove 410 for guiding rotation of a L-motion block 500 at a fixed position while the first blade 200 moves in a close direction C is defined in each of both inner surfaces of the lower housing (400).

公开(公告)号：US10563775B2

公开(公告)日：2020-02-18

申请号：US15571713

申请日：2016-04-14

Applicant: PRESYS.CO., LTD

Inventor： Bae-Jin Kim ,  Sang Min Kim ,  Ki Sun Choi ,  Kang Hyun Kim

IPC: F16K3/18 ,  F16K3/02 ,  F16K51/02 ,  H01L21/67

Abstract: The present invention relates to a vacuum valve, and more particularly, to a vacuum valve including a valve housing with a blade, a main shaft, a vertical moving part, a horizontal moving part, a horizontal moving unit, and a main body bracket. Opening and closing guide holes are obliquely formed in both side surfaces such that cam rollers, having passed through the vertical moving guide grooves, are inserted into the grooves so as to guide the fore and aft movement of the blade according to the vertical movement of the horizontal moving unit.

公开(公告)号：US10352480B2

公开(公告)日：2019-07-16

申请号：US15748726

申请日：2016-07-11

Applicant: PRESYS.CO., LTD

Inventor： Bae-Jin Kim ,  Ki Sun Choi ,  Kang Hyun Kim ,  Sang Min Kim

IPC: F16K51/02 ,  F16K3/02 ,  F16K3/18 ,  F16K3/314 ,  H01L21/02

Abstract: A bidirectional gate valve including: a blade (200) installed in a valve housing (100) having first and second passage holes (110, 120) to open/close the first and second passage holes (110, 120); a shaft (300) coupled to a lower portion of the blade (200); a first driving block (400) including: a first cylinder (410) which is provided under the valve housing (100) and into which the shaft (300) is inserted; a first piston (420) installed inside the first cylinder (410) and coupled to a lower portion of the shaft(300) to vertically move the shaft (300) according to pressure change inside the first cylinder (410).