Metal working – Method of mechanical manufacture – Impeller making
Reexamination Certificate
2005-08-01
2009-08-25
Bryant, David P (Department: 3726)
Metal working
Method of mechanical manufacture
Impeller making
C029S889000, C029S889230, C029S889710, C029S889720, C416S21300R, C416S232000, C416S239000
Reexamination Certificate
active
07578059
ABSTRACT:
In a method for manufacturing a hollow blade for a turbomachine, the blade is made from a preform derived from external primary parts. Each primary part comprising a root part is formed by flattening a blank cut out from a ring with a large diameter provided with a protuberance, in order to reduce costs.
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Bergue Jean-Pierre Serges
Breton Michel
Franchet Jean-Michel Patrick Maurice
Lorieux Alain Georges Henri
Sagot Philippe Francois Christian
Bryant David P
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
SNECMA
Taousakis Alexander P
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