Rotary kinetic fluid motors or pumps – Including means to cause cyclical movement of a part
Reexamination Certificate
2006-09-12
2009-08-04
Kershteyn, Igor (Department: 3745)
Rotary kinetic fluid motors or pumps
Including means to cause cyclical movement of a part
C415S126000, C415S127000, C416S079000, C416S112000, C416S24400R
Reexamination Certificate
active
07568884
ABSTRACT:
A blowing mechanism for a column type electric fan comprises an impeller, a driving motor, a tube-like air ducting assembly, and a swing mechanism. The driving motor is mounted onto a supporting plate attached to the fan's housing. A micromotor of the swing mechanism is fixed onto a connecting disc-like part of the housing. The air ducting assembly comprises an inlet, an outlet, and a flow guiding plate and a flow deflecting plate connected between the top part and the bottom parts of the housing. An upper supporting shaft for the impeller is rotatably attached to the housing through a bearing, and a lower supporting shaft for the impeller is connected to an output shaft of the driving motor. The air ducting assembly is movably carried on the bearing rollers, the disposed on the supporting plate. A link rod of the swing mechanism is movably connected to a rocker extending from the air ducting assembly.
REFERENCES:
patent: 3258195 (1966-06-01), Laing
patent: 5266004 (1993-11-01), Tsumurai et al.
patent: 6953322 (2005-10-01), Lim
patent: 6997680 (2006-02-01), Shapiro et al.
patent: 7217098 (2007-05-01), Lim
Kershteyn Igor
Merchant & Gould P.C.
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