Patent · US Active

Variable flow rate analog output pneumatic (AOP) transducer

US9092038B2 · kind B2 · utility

3Cited by

11References

22Claims

0Family size

Assignee

Siemens Industry, Inc. · US

Inventors

Michael S. Schuler · Lockport, US
Dmitri Chapovalov · Paddy Lane, US

Key dates

Filing date	Jan 31, 2012
Grant date	Jul 28, 2015
Priority date	—
Expiry date	Oct 11, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/87096
WIPO fieldControl
WIPO sectorInstruments

Abstract

A variable flow device includes a body supporting a first orifice and a second orifice, and a drive mechanism. The variable flow device further includes a first valve actuator coupled to the drive mechanism and linearly shiftable between a first open position and a first closed position, the first valve actuator incorporates a first valve stem including a first conical portion sized to symmetrically engage the first orifice when the first valve stem is shifted to the first closed position, and a second valve actuator coupled to the drive mechanism and linearly shiftable between a second open position and a second closed position, the second valve actuator incorporates a second valve stem including a second conical portion sized to symmetrically engage the second orifice when the second valve stem is shifted to the second closed position.

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