Metal working – Method of mechanical manufacture – Impeller making
Reexamination Certificate
2005-12-01
2009-12-29
Bryant, David P (Department: 3726)
Metal working
Method of mechanical manufacture
Impeller making
C416S179000, C416S22300B, C416S234000, C416S22900R, C416S19300A, C205S640000, C205S654000, C205S686000, C029S558000
Reexamination Certificate
active
07637010
ABSTRACT:
A method for machining a blank includes machining a first pocket in the blank having a first sidewall, machining a second pocket in the blank, machining a groove within material located between the first and second pockets to expose a second sidewall opposite the first sidewall, machining the first and second sidewalls, and alternately repeating machining the grove and the sidewalls to step mill the groove deeper in the blank and form a third pocket along which the second sidewall extends.
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EP Search Report, App. No. EP 06 12 5210 (Nov. 27, 2007).
Burgess Greg M.
Lowe Donald D.
Andes Esq. William Scott
Armstrong Teasdale LLP
Bryant David P
General Electric Company
Salone Bayan
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