Patent · US Active

Driving apparatus and valve including the same

US9645587B2 · kind B2 · utility

0Cited by

16References

7Claims

0Family size

Assignee

Emerson Process Management Regulator Technologies, Inc. · US

Inventors

Ping Huo · Chengdu, CN
Yanwei Lei · Chengdu, CN
Zhong Yang · Chengdu, CN

Key dates

Filing date	Oct 22, 2013
Grant date	May 9, 2017
Priority date	—
Expiry date	Oct 22, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7793
WIPO fieldControl
WIPO sectorInstruments

Abstract

A driving apparatus and a valve including the same. The driving apparatus senses a pressure of a fluid medium and generates a driving force. The driving apparatus includes: a drive shaft, a sensing device, a limiting device, a support body, and a protruding member. The limiting device includes a groove, and the protruding member is engaged in the groove. The limiting device can thus automatically limit the rotation of the drive shaft, so as to avoid damaging the sensing device, thereby facilitating maintenance and installation of the valve.

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