Roller tube for awning and method of forming

Details Roller tube for awning and method of forming Roller tube for awning and method of forming

1993-10-04

1994-10-04

Johnson, Blair M.

Flexible or portable closure, partition, or panel

With outriggers

Roll type

135 89, E04F 1006

Patent

active

053517369

ABSTRACT:
A galvanized and coated roll formed tube has several slideway channels formed therein. Edges of the sheet material forming the tube are folded back and interlocked in a hook arrangement to form a seam. The seam is located radially inwardly from the inner circumferential surface of the tube, preferably on a wall of one of the channels. Strengthening ridges are also formed in the tube. The tube is attached to an awning and supported at each end by poles or outriggers. The awning is also attached to a wall so as to be rollable around the tube.

REFERENCES:
patent: 1207943 (1916-12-01), Lemon
patent: 1898686 (1933-02-01), Rice
patent: 4258778 (1981-03-01), Upton et al.

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