Patent ID: 7587850

Claim:
A picture frame assembly for the display of artwork comprising an outer frame, having a back outer frame surface and a front outer frame surface, a back picture opening rabbet return in said back outer frame surface communicating transversely through said outer frame and joining with a front picture sight opening in said front outer frame surface, said back picture opening rabbet return extending towards said front outer frame surface, said back picture opening rabbet return having rounded inside radius rabbet return corners, a picture support flange extending inwardly in said picture sight opening, said back picture opening rabbet return having a receiving groove circumscribed around the inner perimeter of said back picture opening rabbet return and said groove spaced from said back outer frame surface and from said picture support flange, a backing member, said backing member having rounded backing member corners, said backing member having at least one laterally extending resilient groove engaging edge protrusion and at least one resilient elastic slot associated with each said groove engaging edge protrusion, said backing member sized to be closely received within said back picture opening rabbet return when each said resilient groove engaging edge protrusion is laterally compressed inwardly towards the planar center of said backing member.