Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Access opening through portion of casing or cover
Reexamination Certificate
2006-07-18
2006-07-18
Look, Edward K. (Department: 3745)
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Access opening through portion of casing or cover
C417S361000, C417S423150
Reexamination Certificate
active
07077627
ABSTRACT:
A fan assembly comprising a casing having an inlet and an outlet for fluid circulation through the casing, and a closeable opening to allow access to an interior of the casing. A rotor induces fluid circulation in the casing. A motor is connected to the rotor so as to actuate the rotor. A carriage supports the motor and the rotor, the carriage being operatively mounted to a track so as to be displaceable between an operating position of the fan assembly, in which the rotor is positioned in the casing for inducing fluid circulation in the casing, and a maintenance position of the fan assembly, in which the rotor is out of the casing for maintenance, wherein the rotor is displaced between the operating position and the maintenance position through the closeable opening.
REFERENCES:
patent: 2464473 (1949-03-01), Wessel
patent: 2711285 (1955-06-01), Burrowes
patent: 3425621 (1969-02-01), Greenheck
patent: 4092088 (1978-05-01), Nemesi
patent: 4130376 (1978-12-01), Dietsche
patent: 5100302 (1992-03-01), Ceccherini
patent: 5185941 (1993-02-01), Dongelmans
patent: 5439349 (1995-08-01), Kupferberg
patent: 5613843 (1997-03-01), Tsusu et al.
patent: 01320397 (1989-12-01), None
patent: 02168098 (1990-06-01), None
Look Edward K.
Ogilvy Renault LLP
White Dwayne J
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