Etching a substrate: processes – Gas phase etching of substrate – With measuring – testing – or inspecting
Reexamination Certificate
2003-03-10
2008-11-18
Ahmed, Shamim (Department: 1792)
Etching a substrate: processes
Gas phase etching of substrate
With measuring, testing, or inspecting
C216S065000, C219S121690
Reexamination Certificate
active
07452476
ABSTRACT:
A method for the selective removal of one or more layers from a power unit component, e.g., a turbine blade of a heavy-duty turbine, using high-energy radiation of such a wavelength that the supplied energy is so strongly absorbed by the layer to be removed in each case that the removal threshold of the specific material of the layer to be removed is exceeded, while this removal threshold is not reached in the subsurface to be preserved, a spectrometer connected to a control unit via a light-conducting fiber cable such that the method-specific characteristic values are determinable by spectroscopic methods during the removal of the respective layer and are used for the self-regulating process limitation.
REFERENCES:
patent: 4675072 (1987-06-01), Bennett et al.
patent: 4687539 (1987-08-01), Burns et al.
patent: 5210944 (1993-05-01), Monson et al.
patent: 5332879 (1994-07-01), Radhakrishnan et al.
patent: 5946089 (1999-08-01), Duer
patent: 6008896 (1999-12-01), Sabsabi et al.
patent: 6114651 (2000-09-01), Schluter et al.
patent: 6174448 (2001-01-01), Das et al.
patent: 6243948 (2001-06-01), Lee et al.
patent: 6293939 (2001-09-01), Steinert
patent: 6306246 (2001-10-01), Melvin et al.
patent: 6355086 (2002-03-01), Brown et al.
patent: 6365061 (2002-04-01), Damer et al.
patent: 6366353 (2002-04-01), Brown et al.
patent: 6630645 (2003-10-01), Richter et al.
patent: 2003/0085203 (2003-05-01), Nair et al.
patent: 44 11 677 (1995-10-01), None
patent: 44 27 259 (1996-02-01), None
patent: 195 19 150 (1996-12-01), None
patent: 197 15 702 (1998-10-01), None
patent: 0 642 846 (1995-03-01), None
patent: WO-01/43912 (2001-06-01), None
Bayer Erwin
Gold Karsten
Platz Albin
Schmidt Matthias
Ahmed Shamim
Kenyon & Kenyon LLP
MTU Aero Engines GmbH
LandOfFree
Method for removing coating from power unit components and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for removing coating from power unit components and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for removing coating from power unit components and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4029938