Metal working – Method of mechanical manufacture – Process for making bearing or component thereof
Reexamination Certificate
2007-02-27
2007-02-27
Compton, Eric (Department: 3726)
Metal working
Method of mechanical manufacture
Process for making bearing or component thereof
C029S898140, C029S03300H, C072S254000, C072S368000, C420S065000, C420S066000
Reexamination Certificate
active
09983497
ABSTRACT:
Process for manufacturing cylindrical hollow bodies with a circular cross-section using solid rough material of corrosion-resistant, martensitic chromium steels. A remelting block is produced and a tube blank is made therefrom, the tube blank being formed into a tube at hot forming temperature by extrusion at a deformation ratio of at least 6. Hollow bodies are cut from the resultant tube.
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Lichtenegger Gerhard
Schirninger Günter
Schneider Reinhold
Boehler Edelstahl GmbH & Co. KG
Compton Eric
Greenblum & Bernstein P.L.C.
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