초록 ▼

A sign has an enclosure including a transparent forward panel. Behind the transparent forward panel are upper and lower tracks for receiving a replaceable partially transparent panel having advertising material printed thereon. The enclosure has a removeable panel through which the replaceable panel

A sign has an enclosure including a transparent forward panel. Behind the transparent forward panel are upper and lower tracks for receiving a replaceable partially transparent panel having advertising material printed thereon. The enclosure has a removeable panel through which the replaceable panel of advertising material can be inserted or removed from the tracks. In another embodiment, the panel with advertising material is formed as a cartridge having a mounting portion to which a flexible panel of having advertising material thereon can be attached.

대표청구항 ▼

1. A sign comprisingan enclosure having a plurality of walls and an open forward end, a transparent panel having a plurality of edges, said transparent panel desposed across said open forward end, a retaining frame along said plurality of edges for retaining said transparent panel across said open f

1. A sign comprisingan enclosure having a plurality of walls and an open forward end, a transparent panel having a plurality of edges, said transparent panel desposed across said open forward end, a retaining frame along said plurality of edges for retaining said transparent panel across said open forward end, said retaining frame including a plurality of frame members overlapping and parallel to said wall of said enclosures, a first track and a second track within said enclosure and behind said transparent panel, said first and second tracks oriented parallel to said transparent panel, said first track mounted against a first retaining frame member and said second track mounted against a second retaining frame member opposite said first retaining frame member, each of said first and second tracks having a U-shaped cross section, a rigid frame having four frame members, said frame slideable between said first and second tracks, a planar panel having graphic material thereon, means for attaching said planar panel having graphic material thereon to at least two of said frame members wherein said graphic material is visible through said transparent forward surface.