Rotary machine sealing assembly

Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Between blade edge and static part

Reexamination Certificate

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Details

C415S173600, C415S173700, C415S174400, C277S415000

Reexamination Certificate

active

06969231

ABSTRACT:
A sealing assembly for disposition in a rotary machine is disposed between a rotary component and a stationary component of the rotary machine. The sealing assembly includes at least one sealing strip affixed by caulking to one of the rotary and stationary components. An abradable portion is disposed on another of the rotary and stationary components and is positioned radially opposite to the at least one sealing strip. The abradable portion includes a thermal spray coated material, and the thermal spray coated material includes Cobalt, Nickel, Chromium, Aluminum, Yttrium (CoNiCrAlY) and further includes a material selected from the group consisting of hexagonal boron nitride, a thermoset polymer, and combinations thereof.

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Patent Application, Norman Turnquist et al., Filed Jun. 18, 2001, U.S. Appl. No. 09/681,851.
An Englist Abstract is attached to JP2-298604.

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