Metal deforming – With cutting – Machining between plural metal-deforming operations
Reexamination Certificate
2005-12-20
2005-12-20
Larson, Lowell A. (Department: 3725)
Metal deforming
With cutting
Machining between plural metal-deforming operations
C072S349000
Reexamination Certificate
active
06976381
ABSTRACT:
To manufacture a cylindrical member, such as the nozzle body of a fuel injector, in which a fluid passage is formed at high productivity and to improve the reliability.A cylindrical member, such as the nozzle body of a fuel injector, in which a fluid passage is formed is manufactured by drawing martenstic stainless steel. In addition, during the drawing process of martenstic stainless steel, an intermediate product is annealed and lug is removed after another drawing process, and then is subjected to drawing again to obtain a product.
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Comments on category “X” documents cited in European Search Report.
Kawahara Keiji
Koshizaka Atsushi
Sekine Atsushi
Yokoyama Mizuho
Crowell & Moring LLP
Hitachi , Ltd.
Larson Lowell A.
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