Metal working – Method of mechanical manufacture – Muffler – manifold or exhaust pipe making
Reexamination Certificate
2006-03-03
2009-10-27
Bryant, David P (Department: 3726)
Metal working
Method of mechanical manufacture
Muffler, manifold or exhaust pipe making
C029S889200, C060S739000, C060S740000, C060S746000, C060S747000
Reexamination Certificate
active
07607226
ABSTRACT:
A method of manufacturing an internal manifold of a gas turbine engine including machining an annular channel in a ring by a turning process, and varying a position of a tool bit relative to the surface of the ring as a function of a relative circumferential location of the tool bit around the ring such that the channel has a cross-sectional area that varies around a circumference of the ring.
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International Search Report dated May 17, 2007.
Fish Jason
Gagnon Lafleche
Gaudet Dany
Patel Bhawan B.
Bryant David P
Ogilvy Renault LLP
Pratt & Whitney Canada Corp.
Walters Ryan J
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