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US 2003/0200783 A1Published application
Hollow tubular blank provided in wall thereof with one or more reinforcing ribs
OwnerDean Shaiinventor
Life of this patent
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Abstract
A hollow metal tubular blank is provided in the wall with one or more reinforcing ribs which are formed by extrusion of the wall. The reinforcing ribs have an inner ridge and an outer ridge. The reinforcing ribs serve to enhance the structural strength of a retaining slot which is formed in the reinforcing portion of the wall of the blank.
Claims3
A hollow tubular blank made of a metal and provided in a predetermined position of a wall thereof with a reinforcing rib.
Dependencies are inferred from the claim text.