B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
B21C 1/22 (2006.01) B21C 1/00 (2006.01) B21C 1/24 (2006.01) B21C 37/16 (2006.01)
Patent
CA 2342672
Methods and apparatus for forming products having at least one first section having a first wall configuration and at least one second section having a second wall configuration, the second wall configuration different from the first wall configuration. A variation in wall configuration along the axis of the tubular product may be designed to be axially asymmetrical at any segment of the axis.
Akers Ronald L.
Edelman Charles Kenneth
Haller George E. Jr.
Kapadia Sailesh S.
Mancuso Charles Joseph Jr.
Borden Ladner Gervais Llp
Pittsburgh Tube Co.
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