Card – picture – or sign exhibiting – Signs – Magnetic attaching feature
Patent
1991-05-30
1992-12-01
Dorner, Kenneth J.
Card, picture, or sign exhibiting
Signs
Magnetic attaching feature
40611, G09F 704
Patent
active
051670879
ABSTRACT:
A cavity is formed in the floor of a building for receiving the floor type advertising apparatus. A magnetic layer is located and secured in the lower portion of the cavity. A metal layer having an opening formed therethrough is attached to the lower side of a transparent layer and both the transparent layer and the metal layer are located in the cavity to allow the magnetic lines of force from the magnetic layer to removably secure the transparent layer and the metal layer in the cavity. In one embodiment, the lower holding layer has an opening formed therethrough in which is located an advertising layer which can be seen from above through the opening and through the transparent layer. In another embodiment, the metal layer and the magnetic layer may be reversed in positions. In a further embodiment wherein the magnetic frame layer is bonded to the transparent layer and the metal layer is bonded to the bottom of the cavity, one side of the frame is bonded to one side of the lower metal layer whereby the other side of the magnetic frame layer with the transparent layer may be lifted from the lower layer and folded back to allow insertion or removal of the advertising layer.
REFERENCES:
patent: 2023573 (1935-12-01), Bury
patent: 3826026 (1974-07-01), Bevan
patent: 4637153 (1987-01-01), Kane et al.
patent: 4744012 (1988-05-01), Bergkvist
patent: 4785562 (1988-11-01), Good
patent: 4907361 (1990-03-01), Villard
patent: 4976055 (1990-12-01), Kane
Dorner Kenneth J.
Hope Cassandra L.
Mantooth Geoffrey A.
Zobal Arthur F.
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