Card – picture – or sign exhibiting – Signs – Stretched or tensioned
Patent
1990-06-22
1992-07-07
Brown, Peter R.
Card, picture, or sign exhibiting
Signs
Stretched or tensioned
160328, 160378, G09F 1700
Patent
active
051271770
ABSTRACT:
An expandable sign frame assembly for supporting a flexible membrane comprises a plurality of horizontally spaced vertically expanding section members having T-shaped cross sections. Brackets are slidably mounted near the top and bottom end of the section members and on opposite sides of an upstanding leg of the T-shaped cross section. Tensioning supports are connected at the top and bottom ends of the section members for receiving tensioning bolts which are threaded to flanges of the brackets. A channel extends along and is connected to the upper and lower brackets for capturing the upper and lower edge areas of a membrane which is to be tensioned between the brackets at the upper and lower ends of the section members. For a membrane that extends horizontally around the corner of a structure, horizontally around the corner of a structure, horizontal tensioning is achieved before vertical tensioning by pressing a vertical strip against the inside corner area of the membrane. Each channel includes a recess for capturing the edge area of the membrane, the edge area being wrapped around a membrane strip which is fixed in the channel recess.
REFERENCES:
patent: 780166 (1905-01-01), Foster
patent: 974600 (1910-11-01), Robinson
patent: 1867565 (1932-07-01), Greenlee
patent: 1916023 (1933-06-01), Shull
patent: 3485165 (1969-12-01), Hughes
patent: 3934365 (1976-01-01), Stein et al.
patent: 4542605 (1985-09-01), Gandy
patent: 4862615 (1989-09-01), Hillstrom
patent: 4864756 (1989-09-01), Rasmussen
Brown Peter R.
Green Brian K.
Signstrut, Ltd.
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