Bi-directional, dual acting, electric safety lock
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United States of America Patent
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-
Nov 16, 1999
Grant Date -
N/A
app pub date -
Sep 8, 1997
filing date -
Sep 8, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electrical lock for a moving part prevents the part from moving unless a device controlled by the part is in a safe mode. The invention may find a use in many different environments. The specific example here described is a set of reverse thruster doors on a jet engine. The lock prevents a throttle from applying or removing power unless the reverse thruster doors are properly set for such application or removal of power. The lock is removed when the doors reach full deployment or retraction, respectively, which is appropriate for the direction in which said throttle is moved. These functions are provided under the control of a single solenoid.
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