B - Operations – Transporting – 64 – F
Patent
B - Operations, Transporting
64
F
B64F 1/18 (2006.01) F21V 5/02 (2006.01) F21V 13/04 (2006.01)
Patent
CA 2141250
A light fixture for mounting in an airport runway or a taxiway has a cover with a flat surface and one or two windows for the passage of a light beam. An optical prism is detachably mounted in a cavity formed in the cover beside and beneath each window. The prism has three flat sides forming an equilateral triangle with two of the sides sloping upwardly to a top edge positioned at a top of its window. A special sealing member fits over the prism and preferably covers one of the two sides which slope upwardly. This member extends about a lower portion of the prism and forms a water tight seal. An electric light is mounted in a bottom receptacle on which the cover is supported. A light channel is formed in the top of the cover and extends from each window towards an edge of the cover. This channel has a bottom which slopes at a small angle to the flat top.
Ridout & Maybee Llp
Tristar Electric Inc.
LandOfFree
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