Patent · US Active

Control device for a pneumatically operated actuator

US7925386B2 · kind B2 · utility

5Cited by

10References

7Claims

0Family size

Assignee

ABB AG · US

Inventors

Peter Krippner · Karlsruhe, DE
Thomas Kleegrewe · Minden, DE
Armin Gasch · Speyer, DE
Detlef Pape · Nussbaumen, CH
Wolfgang Lasarzik · Bad Nenndorf, DE
Wolfgang Scholz · Minden, DE
Urs E. Meier · Aesch, CH

Key dates

Filing date	Dec 13, 2007
Grant date	Apr 12, 2011
Priority date	—
Expiry date	Jan 8, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7759
WIPO fieldControl
WIPO sectorInstruments

Abstract

The disclosure relates to a control device for a pneumatically operated actuator in the field of process automation, in particular for continuous control of material flows in the industrial environment. The control device has a communications interface for receiving an electrical setpoint value, and an output for the output of a pneumatic fluid, whose pressure is varied as a function of a control deviation. The received electrical setpoint value is suitable as a process parameter. The control device is connected via a communications channel to an actual-value encoder, which is designed to output an electrical signal corresponding to the actual value of the same process parameter.

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