Patent · US Active

Valve device

US10221964B2 · kind B2 · utility

1Cited by

6References

3Claims

0Family size

Assignee

FUJIKIN INCORPORATED · JP

Inventors

Masahiko Sogao · Osaka, JP
Tomohiro Mouri · Osaka, JP
Masakazu Nagao · Osaka, JP

Key dates

Filing date	Aug 4, 2016
Grant date	Mar 5, 2019
Priority date	—
Expiry date	Aug 4, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K47/04
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A valve having a simple configuration that prevents the seat from being damaged by self-excited oscillation of the valve body and thus prevents seat leakage. The valve includes a valve casing having a fluid inlet, a fluid outlet, and a valve chamber; the valve chamber including a seat having a seat surface; a stem inserted into the valve casing so that the stem can be vertically movable; and a valve body arranged at a tip of the stem and capable of abutting on the seat surface of the seat due to the vertical movement of the stem such that a tip part of the valve body does not come into contact with the seat surface due to oscillation of the stem.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.