Fluid reaction surfaces (i.e. – impellers) – Multiple axially spaced working members
Reexamination Certificate
2011-03-08
2011-03-08
Kershteyn, Igor (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Multiple axially spaced working members
C416S20100A, C415S135000, C415S136000, C415S170100, C415S174200, C277S643000, C277S649000
Reexamination Certificate
active
07901186
ABSTRACT:
A seal assembly (60) for sealing first and second static parts (40A,40B) with opposed slots (44A,44B) together forming a pocket (46). The seal assembly (60) comprises a floor strip (70) positioned adjacent the pocket's floor (48) and a ceiling strip (80) positioned adjacent the pocket's ceiling (50). A connection (90) of the strips' central portions (72, 82) provides a flat hinge between cooperating hinge portions (76, 86). A first set of the hinge portions (76A-86A) converge for insertion into the first slot (44A) and a second set of hinge portions (76B-96B) converge for insertion into the second slot (44B). After such slot insertion and pocket installation, the converged hinge portions (76A-86A,76B-86B) resiliently diverge within the pocket to seat the floor strip's end portions (74A,74B) against the pocket's floor (48) and to seat the ceiling strip's end portions (84A,84B) against the pocket's ceiling (50).
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Cornett Kenneth W.
Mahoney Christopher D.
Kershteyn Igor
Parker Hannifin Corporation
Renner , Otto, Boisselle & Sklar, LLP
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