Card – picture – or sign exhibiting – Signs – Stretched or tensioned
Patent
1995-10-06
1997-09-23
Silbermann, Joanne
Card, picture, or sign exhibiting
Signs
Stretched or tensioned
40604, G09F 1700
Patent
active
056691661
ABSTRACT:
A casing for sign comprising a backing sheet and side members having each a lip along an edge of the backing sheet. The sign casing further comprises a crimp or a plurality of crimps in the lip of each side member and into the backing sheet for retaining the backing sheet to the side members. The lip of each side member is adjacent a first side of the backing sheet, and a lateral portion of each side member is adjacent a second side of the backing sheet. The lip and the lateral portion of each side member form a slot enclosing an edge of the backing sheet. The lateral portion of the side member further has a groove facing the lip, for receiving a swollen portion of the crimp. The casing is manufactured on a production table having a central top surface, a first side surface and a second side surface. The first side surface and the second side surface have respectively a first longitudinal shoulder for laterally supporting a first side member of the casing, and a second longitudinal shoulder for laterally supporting a second side member of the casing during manufacturing thereof. The production table further has adjustment means to selectively move the first side surface in a coplanar and parallel relationship with the second side surface, such that the production table may be adjusted to manufacture sign casings of different widths.
REFERENCES:
patent: 4632592 (1986-12-01), Gunter
patent: 4649628 (1987-03-01), Allemandou
patent: 4746240 (1988-05-01), Tarum et al.
patent: 4760634 (1988-08-01), Rapp
patent: 4864756 (1989-09-01), Rasmussen
patent: 5051020 (1991-09-01), Schleicher
patent: 5255459 (1993-10-01), Verret
Silbermann Joanne
Theriault Mario D.
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