Rotary kinetic fluid motors or pumps – Runner or blade selectively adjustable relative to casing – Axially adjusted
Reexamination Certificate
2011-04-19
2011-04-19
Nguyen, Ninh H (Department: 3745)
Rotary kinetic fluid motors or pumps
Runner or blade selectively adjustable relative to casing
Axially adjusted
C415S200000, C415S900000, C416S142000, C416S189000, C416S19800R, C416S234000, C416S24100B, C416S23600R, C416S240000
Reexamination Certificate
active
07927068
ABSTRACT:
An impeller includes a hub, and a plurality of blades supported by the hub, the blades being arranged in at least two blade rows. The impeller has a deployed configuration in which the blades extend away from the hub, and a stored configuration in which at least one of the blades is radially compressed, for example by folding the blade towards the hub. The impeller may also have an operational configuration in which at least some of the blades are deformed from the deployed configuration upon rotation of the impeller when in the deployed configuration. The outer edge of one or more blades may have a winglet, and the base of the blades may have an associated indentation to facilitate folding of the blades.
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Boger David A.
Campbell Robert L.
Dillon Gregory P.
Hambric Stephen A.
Kunz Robert F.
Knobbe Martens Olson & Bear LLP
Nguyen Ninh H
The Penn State Research Foundation
Thoratec Corporation
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