Vacuum powered lifting mechanism
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United States of America Patent
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Sep 6, 2016
Grant Date -
Oct 8, 2015
app pub date -
Mar 30, 2015
filing date -
Apr 2, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A vacuum powered system for moving a movable component, such as for raising and lowering a stowage container, includes a vacuum actuator connected between a fixed structure and a movable component. The vacuum actuator includes one or more intake ports that are configured to connect with a source of vacuum for moving the movable component in a first direction to a first position, and one or more bleed valve ports for venting the vacuum actuator to move the movable component in a second direction to a second position. The vacuum actuator may be an air bellows, a single acting linear vacuum actuator, or a dual acting linear vacuum actuator. A guiding system is further provided that includes elongated tracks in a stationary stowage container housing that houses the movable component, and corresponding guide elements on the movable component that slidably engage with the elongated tracks for moving the movable component.
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