US 11,668,401 B2
Dual gate valve
Hiromi Shimoda, Tsukubamirai (JP); Hiroshi Ogawa, Tsukubamirai (JP); and Takashi Nagao, Tsukubamirai (JP)
Assigned to SMC CORPORATION, Tokyo (JP)
Filed by SMC CORPORATION, Tokyo (JP)
Filed on Dec. 14, 2021, as Appl. No. 17/644,161.
Claims priority of application No. JP2020-212602 (JP), filed on Dec. 22, 2020.
Prior Publication US 2022/0196156 A1, Jun. 23, 2022
Int. Cl. F16K 3/02 (2006.01); F16K 3/18 (2006.01); F16K 3/314 (2006.01); F16K 51/02 (2006.01)
CPC F16K 3/0272 (2013.01) [F16K 3/029 (2013.01); F16K 3/18 (2013.01); F16K 3/314 (2013.01); F16K 51/02 (2013.01); F16K 2200/101 (2021.08)] 11 Claims
OG exemplary drawing
 
1. A dual gate valve comprising:
two valve plates that open and close two openings of a valve box;
a support bar that supports the two valve plates;
a valve rod connected to the support bar; and
an operation unit that performs an open and close operation of the two valve plates via the valve rod,
wherein the support bar and the valve plate linearly and elongatedly extend in a lateral direction perpendicular to a central axis of the valve rod, the valve rod is connected to a central portion in a longitudinal direction of the support bar the two valve plates are attached on a front surface of the support bar, and one and the other of the two valve plates are tiltably attached to one end and the other end of the support bar in the longitudinal direction via elastic members, respectively.