Illumination – Supported by vehicle structure – Condition responsive
Reexamination Certificate
2006-07-25
2006-07-25
Sember, Thomas M. (Department: 2875)
Illumination
Supported by vehicle structure
Condition responsive
C362S466000, C362S472000, C362S287000, C315S082000
Reexamination Certificate
active
07080928
ABSTRACT:
An electronically controlled retractable landing light (100) for use with aircraft. A controller (106) compares the commanded position of a lighthead (108) by means of a contactless absolute position sensor (212). Operation of a brake (111), motor (110), and lamp (112) is controlled by a control unit (210). Electrical power to the brake (111), motor (110), and lamp (112) is slowly applied and removed to reduce electromagnetic emissions and extend the service life of a power stage (208), brake (111), motor (110), and lamp (112). The lighthead (108) may be manually stowed in the event of a fault.
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Barnhart Brian J.
Giffen Craig E.
Hamilton Scott E.
Mubaslat Saed M.
Honeywell International , Inc.
Sember Thomas M.
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