Apparatus to increase a force of an actuator having an override apparatus
US8549984B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 2009 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Jul 28, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B15/1409
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Apparatus to increase a force of an actuator having an override apparatus are described herein. An example fluid control system includes a first fluid control apparatus to fluidly couple a control fluid supply source to a control actuator via a first passageway. The control fluid supply source provides a control fluid to move a control actuator member of the control actuator in a first direction or a second direction opposite the first direction when the control actuator is in the operational state. A second fluid control apparatus is in fluid communication with the first fluid control apparatus and is configured to fluidly couple an override actuator to the control actuator via a second passageway when the control actuator is in a non-operational state. The override actuator is operatively coupled to the control actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.