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US 3,977,107 AGranted
Illuminated display box for navigational aides
OwnerCarl D. Warreninventor
Life of this patent
Estimating the term…
Abstract
This is an illuminated display box light sealed except for an illuminated display window and a translucent display strip mounted on a pair of rollers and particularly constructed to display sequentially arranged navigational aid information to the pilot of a boat at night without producing glare in other areas of the wheelhouse thus preventing impairment of the pilot's vision at night while still providing ready access to said navigational information displayed on the portion of the strip located in the display window.
Claims1
An illuminated display box for displaying sequentially prepared navigational information for boat pilots, comprising
- a box having a bottom, sides, ends and a top panel all sealingly attached together so as to form an opaque enclosure;
- a rectangular display window in said top panel;
- a pair of reversible spaced-apart rolls rotatably mounted in said box between the sides thereof in close association to said ends;
- means for rotating said rolls;
- an elongated sequentially arranged information-containing strip of translucent sheet material attached at its respective ends to said rolls and extending therebetween in underlying relation to said display window;
- a pair of rail elements mounted in slightly spaced relation below said top to form a pair of channels respectively extending the full length of said window on opposite sides of said window, a pair of felt strips mounted on each side of said window with each of said channels in opposed face to face relation to form a strip engaging and light sealing track which sealingly engages the opposed marginal edges of the portion of the strip disposed below said window;
- means subjacent the portion of the strip aligned with the window for supplying light within said box below said display window to permit information contained on said strip to be easily read in the dark without permitting light to escape from the box except through said strip portion and window.
4 more elements
Dependencies are inferred from the claim text.