Metal working – Method of mechanical manufacture – Impeller making
Reexamination Certificate
2011-06-21
2011-06-21
Chang, Rick K (Department: 3726)
Metal working
Method of mechanical manufacture
Impeller making
C029S889000, C029S889100, C029S889400, C411S338000, C411S383000, C411S395000, C415S115000, C415S173400, C415S173700, C415S174400
Reexamination Certificate
active
07963034
ABSTRACT:
A method of attaching a labyrinth seal support to a turbine engine shaft is disclosed. The method includes inserting axial bolts to secure the labyrinth seal support, the shaft and a device for driving the turbine module with the shaft, and screwing tightening screws in extracting holes, for extracting the drive device with respect to the shaft, provided on the shaft to tighten the labyrinth seal support onto the shaft.
REFERENCES:
patent: 2764266 (1956-09-01), Haworth
patent: 5226788 (1993-07-01), Fledderjohn
Dejaune Claude Gerard Rene
Gros Valerie
Chang Rick K
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
SNECMA
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