Metal working – Method of mechanical manufacture – Structural member making
Reexamination Certificate
2006-01-17
2006-01-17
Omgba, Essama (Department: 3726)
Metal working
Method of mechanical manufacture
Structural member making
C029S432000, C029S432200, C029S469500, C029S513000, C029S897310, C029S897340, C029S897350
Reexamination Certificate
active
06986205
ABSTRACT:
A method for making a composite structural member. The composite structural member has a flange having a base wall and two side walls extending from the base wall, the base wall and side walls forming a pocket to receive a portion of a web. Each side wall of the flange is doubled with an inner wall panel and an outer wall panel joined along a fold line spaced from, and parallel to, the base wall. Fasteners are formed from each side wall adjacent the fold line, each fastener having inner and outer wall panel sections joined by a section of the fold line and extending transversely from its side wall toward the other side wall. The flange is used with the web, a portion of the web mounted in the pocket with the side walls of the flange adjacent the sides of the web and the fasteners pressed into the sides of the web to secure the flange to the web. The method comprises the steps of: mounting the web within the pocket of the flange to form an elongated assembled unit; moving the unit longitudinally; forming the fasteners in the side walls while the side walls diverge from the web and the unit moves; and then moving the side walls against the web to press the fasteners into the web while the unit moves to secure the flange to the web.
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