Patent · US Active

Actuator having an override apparatus

US8794589B2 · kind B2 · utility

3Cited by

20References

33Claims

0Family size

Assignee

Fisher Controls International LLC · US

Inventors

David Anthony Arnold · Marshalltown, US
David George Halm · Haverhill, US
Michael W. McCarty · Marshalltown, US

Key dates

Filing date	Jan 27, 2009
Grant date	Aug 5, 2014
Priority date	—
Expiry date	Apr 13, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF15B11/18
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

Actuators having override apparatus are described herein. An example actuator having an override apparatus includes a first actuator stem coupled to a control actuation member. The override apparatus is operatively coupled to the actuator. A spring is coupled to an override member to move the first actuator stem to a predetermined position in response to an override condition.

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