Apparatus for retaining an internal coating during article...

Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Vane or deflector

Reexamination Certificate

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Details

C415S115000, C415S116000, C415S191000, C118S301000, C118S505000, C118S721000, C427S272000, C427S282000

Reexamination Certificate

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06913442

ABSTRACT:
An internal coating on an internal passage wall exposed at a passage opening through an article external surface is protected from removal during repair of the article, including removal of at least a portion of an external coating, by a masking assembly disposed about the passage opening. The masking assembly comprises a masking member and a substantially flexible seal, substantially inert to a coating removal medium for the external coating. The masking member is shaped for disposition about the passage opening across a gap between the external surface and the masking member. The substantially flexible seal is disposed across the gap substantially to seal the gap.

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