公开(公告)号：DE60238498D1

公开(公告)日：2011-01-13

申请号：DE60238498

申请日：2002-09-24

Applicant: ROSEMOUNT INC

Inventor： GRAVEL JAMES L ,  SITTLER FRED C ,  BRODEN DAVID A

IPC: G01L9/12 ,  G01L19/14 ,  G01L1/00 ,  G01L9/00 ,  G01L13/06 ,  G01L19/00

公开(公告)号：IN182707B

公开(公告)日：1999-06-26

申请号：IN606MA1993

申请日：1993-08-26

Applicant: ROSEMOUNT INC

Inventor： GRAVEL JAMES L

IPC: F15B5/00

公开(公告)号：SG44468A1

公开(公告)日：1997-12-19

申请号：SG1996000661

申请日：1994-05-13

Applicant: ROSEMOUNT INC

Inventor： GRAVEL JAMES L

IPC: B01D46/10 ,  B01D46/42 ,  F15B5/00 ,  F15C3/14 ,  G05D16/20

Abstract: A transducer which provides a regulated pneumatic output as a function of an electric control input includes a housing, a gas regulator, and a particle trap. The housing has a passage therein, the passage including an inlet for receiving a pressurized gas supply and an outlet. The particle trap is disposed in the passage and includes a trap plate and a trap nozzle which directs gas against the trap plate so as to remove undesired entrained particles from the gas before it reaches the gas regulator.