公开(公告)号：US20170108879A1

公开(公告)日：2017-04-20

申请号：US15391252

申请日：2016-12-27

Applicant: NERIKI VALVE CO., LTD.

Inventor： Masaru TAKEDA ,  Akira OI

IPC: G05D7/01 ,  F16K17/04

CPC classification number: G05D7/014 ,  F16K17/04 ,  F16K17/30 ,  F17C13/04 ,  F17C2201/0109 ,  F17C2201/056 ,  F17C2201/058 ,  F17C2205/0329 ,  F17C2205/0332 ,  F17C2205/0335 ,  F17C2205/0338 ,  F17C2205/035 ,  F17C2205/0385 ,  F17C2205/0394 ,  F17C2227/048

Abstract: A flow direction restriction valve mechanism unit includes a pressure decreasing valve assembly that is located to be freely advance or retract in a combination valve cassette attached to an in-outlet secondary side flow path formed on the side of an outlet with respect to an intermediate transmission member in a flow path, and retracts by a pressure of gas; a first coil spring urging the pressure decreasing valve assembly in a retracting direction; a check valve that is located to be freely advance or retract with respect to the pressure decreasing valve assembly, and retracts by a pressure of the gas; and a second coil spring urging the check valve in an advancing direction. A gas induction passage H is formed in which the gas flows and acts on the pressure decreasing valve assembly such that the pressure decreasing valve assembly moves in the advancing direction.

公开(公告)号：US20210207776A1

公开(公告)日：2021-07-08

申请号：US17212649

申请日：2021-03-25

Applicant: NERIKI VALVE CO., LTD.

Inventor： Atsushi ICHITSUBO ,  Masaru TAKEDA ,  Shinji OKADA ,  Koji MIYAZAKI

IPC: F17C13/04 ,  F16K27/02 ,  F16K1/02 ,  F16K31/50 ,  F16K41/12

Abstract: The flow path of a container valve communicates from a container attachment portion, to be attached to a fluid storage container, to an outlet, and is provided with a valve chamber, accommodating an open/close valve, in a middle part thereof. A portion of the flow path from an end of the container attachment portion to a bottom surface of the valve chamber is set as a primary flow path, and a portion of the flow path from an inner side surface of the valve chamber to an end of the outlet is set as a secondary flow path. In an outer circumferential portion of the bottom surface of the valve chamber, a discharge promotion groove is formed continuously with a portion corresponding to the lateral opening in a circumferential direction. A bottom surface of the secondary flow path is located below a bottom surface of the discharge promotion groove.

公开(公告)号：US20190178399A1

公开(公告)日：2019-06-13

申请号：US16208762

申请日：2018-12-04

Applicant: NERIKI VALVE CO., LTD.

Inventor： Masaru TAKEDA ,  Kazuyuki MIYATA

IPC: F16K15/02 ,  F16K15/18

Abstract: A one-way valve device or a non-return valve mechanism in the valve device provides a higher retaining residual pressure without upsizing. A non-return valve cassette in a consumption valve device regulates gas flow. The cassette includes a check valve movable forward and backward between a valve-closed position and a valve-open position in an outlet secondary flow channel and movable backward to the valve-open position under pressure of the gas flowing upstream, and a first coil spring with a spring force biasing the check valve upstream. The first coil spring permits the check valve to move downstream against the upstream biasing when an upstream pressure is a predetermined pressure or greater. The check valve includes a downstream end smaller than an upstream end in an area communicating with an upstream space at the valve-closed position.