Metal working – Method of mechanical manufacture – Impeller making
Reexamination Certificate
2007-08-07
2007-08-07
Bryant, David P. (Department: 3726)
Metal working
Method of mechanical manufacture
Impeller making
C029S023510, C451S457000, C451S029000
Reexamination Certificate
active
10728678
ABSTRACT:
A tool for limiting a cut on an impeller having a shaft and vane is provided. The tool includes a shield member having a sidewall, a top, and an inner cavity. The tool also includes a first cut opening extending through the hub sidewall to the shield member inner cavity, the shield member configured to matingly receive the impeller shaft into the shield member inner cavity and position at least a portion of the impeller shaft proximate the at least one cut opening to expose the portion of the impeller shaft for grinding.
REFERENCES:
patent: 2467376 (1949-04-01), Francis, Jr.
patent: 3608349 (1971-09-01), Greiner et al.
patent: 3811327 (1974-05-01), Hack
patent: 4380925 (1983-04-01), Martino
patent: 5791595 (1998-08-01), Jamieson
patent: 6402467 (2002-06-01), Godichon et al.
Clayton William J.
Nghiem Nguyen X.
Tench, Jr. Thomas J.
Bryant David P.
Honeywell International , Inc.
Ingrassia Fisher & Lorenz
Koehler Christopher M.
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