Illumination – With heater or refrigerator
Patent
1993-03-08
1994-09-27
Lazarus, Ira S.
Illumination
With heater or refrigerator
362373, 362812, 40564, F21V 1500, F21V 2900
Patent
active
053511727
ABSTRACT:
A back-lighted illuminated sign includes a vented light sign cabinet having a light-transmitting front panel , with two side panels, top panel, a bottom panel, and a rear cabinet panel enclosing a cabinet interior having a light source contained therein and wherein said bottom panel includes passive vent openings for admitting a thermally induced draw of cooler ambient air flow there through into the cabinet's interior. The rear cabinet panel includes vent openings arranged adjacent the top panel, for exhausting thermally-induced air flow, at a first temperature, from the cabinet's interior. The cabinet includes spacers for spacing the cabinet from an adjacent freezer in chimney defining relation between the rear cabinet panel and an adjacent exterior panel of the freezer, with air flow admitting and exhausting openings at the lower and upper ends, respectively, of that chimney. The chimney is thereby adapted to channel a secondary thermally-induced air flow, having a second temperature lower than said first temperature, between the rear cabinet panel and the adjacent freezer panel.
REFERENCES:
patent: 515182 (1894-02-01), Warner
patent: 1754518 (1930-04-01), Kinnie
patent: 1768800 (1930-07-01), Steiner
patent: 4977754 (1990-12-01), Upton et al.
patent: 5282117 (1994-01-01), Fritts
Atkinson David P.
Attree Julian
Attree Russell C.
Lazarus Ira S.
Quach Y.
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