Card – picture – or sign exhibiting – Aerostatic devices – Ground indicia
Patent
1997-04-14
1998-10-06
Green, Brian K.
Card, picture, or sign exhibiting
Aerostatic devices
Ground indicia
40610, G09F 2106
Patent
active
058159665
ABSTRACT:
A portable rooftop sign includes a large flexible mesh sheet having a plurality of characters or logos disposed on an upper surface. A plurality of sleeves are attached to a lower surface of the sheet. The sign is installed on a generally planar roof of a building near an airport. Elongated weights or rods are slidably inserted into each of the sleeves to secure the flexible sheet to the roof. Each of the elongated weights comprises a plurality of rod sections which are removably connected by threaded ends. Portable light sources on the roof illuminate the sign at night or in low visibility. In colder climates, electric heating elements embedded in the sheet prevent snow and ice accumulation by melting the snow and ice, which then drains through the mesh sheet and is removed by the normal drainage of the roof.
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