Illumination – Chemiluminescent lighting
Patent
1994-05-25
1995-04-11
Lazarus, Ira S.
Illumination
Chemiluminescent lighting
362812, 40542, F21K 206, G09F 1320
Patent
active
054064635
ABSTRACT:
An octagonally-shaped, orange colored sign display (10) having intelligible, informational indicia (20) thereon, such as "CALL 911," using chemi-luminescence to provide illumination from within the indicia in emergency situations. The indicia consist of a series of separate, hollow, formed containers, which are made of at least translucent, if not transparent, material and contain a special, generally isolated chemical, which is ultimately mixed with another special chemical located in an upper, horizontally disposed, reservoir tube (30/330), with the tube connected to the indicia containers by connector lines (40). A membrane divider (31/331) extends across the bottom portion of the reservoir tube, isolating the upper chemical from the lower chemical, until steps are taken to break or rupture it. The two chemi-luminescent chemicals are mixed by breaking the membrane by bending the tube until the membrane breaks. The chemi-luminescent reaction causes the indicia to brightly stand out against the background of the display due to their internal illumination and thereby be highly visible or noticeable, as well as easily intelligible, to passing motorists or other passers-by. The reservoir and individual indica can be made from transparent plastic tubes, with the latter being made in the form of the desired lettering of the indicia, with a separate, horizontally disposed reservoir being provided for each line of lettering. In an alternative embodiment (FIGS. 4-6) both chemicals are contained in a dual compartmented, replaceable reservoir which snaps onto the tops of the indicia and, thereafter, on activation flow into the indica to internally illuminate them.
REFERENCES:
patent: 3808414 (1974-04-01), Roberts
patent: 4061910 (1977-12-01), Rosenfeld
patent: 4405973 (1983-09-01), Moscarillo
patent: 4677008 (1987-06-01), Webb
patent: 4751616 (1988-06-01), Smithey
patent: 4814949 (1989-03-01), Elliott
patent: 5177812 (1993-01-01), DeMars
patent: 5226710 (1993-07-01), Giglia et al.
Lazarus Ira S.
Pugh C. Emmett
Raab Sara Sachie
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