Patent · US Active

Actuator apparatus with internal tubing and anti-rotation mechanism

US9458947B2 · kind B2 · utility

2Cited by

27References

19Claims

0Family size

Assignee

Fisher Controls International LLC · US

Inventors

David Anthony Arnold · Marshalltown, US
Daniel M. Adams · San Fernando, US

Key dates

Filing date	Feb 25, 2014
Grant date	Oct 4, 2016
Priority date	—
Expiry date	Feb 25, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K39/00
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

Fluid valve actuator apparatus having internal tubing and anti-rotation features are disclosed. An example actuator apparatus includes an actuator casing and a diaphragm plate disposed within the actuator casing. The diaphragm plate defines a first pressure chamber and a second pressure chamber opposite the first pressure chamber. A yoke couples the actuator casing to a fluid valve. The yoke includes a first internal fluid passageway in fluid communication with atmosphere and a second internal fluid passageway to receive a control fluid from a controller. A tube fluidly couples the first or second internal fluid passageway to the first pressure chamber via an opening in the diaphragm plate. The tube also prevents the diaphragm plate from rotating relative to the actuator casing.

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