Outflow valve having a cable operated closure mechanism
US7334773B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2005 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Apr 20, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/50
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An outflow valve includes a valve closure mechanism that automatically closes the outflow valve in the unlikely event the outflow valve actuator becomes inoperable. The valve closure mechanism includes a pulley, a load plate, a cable, and a spring. The pulley is coupled to a valve element is the outflow valve and is configured to eccentrically rotate therewith. The cable has a first end coupled to the pulley, and a second end coupled to the load plate. The spring is disposed between the valve and the load plate and surrounds a portion of the cable. The spring is configured to supply a bias force, via the load plate and the cable, to the pulley that biases the valve element toward the closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.