US 12,078,262 B2
Operation valve
Ryohei Yamamoto, Miura-gun (JP)
Assigned to FUMOTO GIKEN CO., LTD., Kanagawa (JP)
Filed by FUMOTO GIKEN CO., LTD., Kanagawa (JP)
Filed on Dec. 19, 2022, as Appl. No. 18/084,176.
Claims priority of application No. 2022-003127 (JP), filed on Jan. 12, 2022.
Prior Publication US 2023/0220927 A1, Jul. 13, 2023
Int. Cl. F16K 3/26 (2006.01); F16K 27/04 (2006.01); F16K 31/50 (2006.01)
CPC F16K 31/508 (2013.01) [F16K 3/26 (2013.01); F16K 27/041 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An operation valve comprises:
a valve formed into a rod shape and including a barrel portion in which a flow path for a fluid is provided, a head portion in which an inlet of the flow path is provided, and a leg portion in which an outlet of the flow path is provided;
a housing body housing the barrel portion;
an operation dial coupled to the housing body and driving the valve in an extension direction of the valve; and
a second sealing ring sealing the housing body from the fluid, moving with the inlet in accordance with rotation of the operation dial and provided on a head side surface of the head portion, wherein
the leg portion is inserted into an inside of the operation dial.