Method and apparatus for retrofitting backlit signs with light emitting diode modules
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United States of America Patent
Stats
-
Jul 13, 2004
Grant Date -
Apr 29, 2004
app pub date -
May 30, 2003
filing date -
Oct 8, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for retrofitting a backlit sign with an LED module. The housing includes sidewalls with translucent portions. The LED module includes linear arrays of LEDs supported by support arms having mounting mechanisms for engaging with the housing sidewalls. The mounting mechanisms include scissor arms rotatably attached together about mid-portions thereof, and a tightening screw that adjusts the distance between the scissor arm ends to press engagement surfaces of the scissor arms against the housing sidewalls. Adjustment screws at the lower ends of the support arm can be adjusted to further extend the engagement surfaces, so that a single LED module can be installed inside a wide range of backlit sign sizes. The retrofit method includes removing the conventional fluorescent lamp from the backlit sign, and installing the LED module using the scissor arm mounting mechanisms.
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