Title:
【発明の名称】弁位置決め装置
Document Type and Number:
Japanese Patent JP2579682
Kind Code:
B2
Abstract:
A valve positioning device capable of comparing the travel position of an output shaft of a diaphragm actuator or cylinder with the pressure level of a pneumatic input signal and further being capable of manipulating the pressure of a separate air signal piped to said diaphragm actuator or cylinder in order to correct any imbalance between said stem position and a given pneumatic signal level; wherein said valve positioning device is further capable of varying its dynamic response by built in adjustment means.
Inventors:
Hans Day Bowman
Application Number:
JP3388589A
Publication Date:
February 05, 1997
Filing Date:
February 15, 1989
Export Citation:
Assignee:
Hans Day Bowman
International Classes:
F15B9/08; F15B13/16; F16K31/44; (IPC1-7): F15B9/08
Domestic Patent References:
| JP58196303A | ||||
| JP5779302A | ||||
| JP5122456A | ||||
| JP3910759B1 | ||||
| JP6029002B2 |
Attorney, Agent or Firm:
Heiyoshi Odashima