Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Radially extending web or end plate
Reexamination Certificate
2007-08-09
2011-10-11
Kershteyn, Igor (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Rotor having flow confining or deflecting web, shroud or...
Radially extending web or end plate
C416S20400A, C416S224000, C416S24100B, C416S24400R, C029S889230, C029S889400
Reexamination Certificate
active
08033793
ABSTRACT:
The present invention provides an impeller in which a metallic bush can be inserted correctly into a synthetic resin impeller main body manufactured by resin molding using a die, and a determination as to whether or not the impeller has been manufactured correctly can be made easily. The impeller comprises: a metallic bush comprising a circumferential boss portion having a substantially truncated cone-shaped throttle portion positioned on a front surface axial end side, a periaxial support boss portion positioned in an axial center, and a circumferential protruding portion positioned on a back surface axial end side; and an impeller main body made of synthetic resin and formed with a V-shaped bulging portion that bulges axially in the center of a front surface side of a disk-shaped vane portion fulcrum, in which a plurality of vanes are formed integrally on the periphery of the V-shaped bulging portion. An outer diameter of the circumferential protruding portion of the bush is formed to be smaller than an outer diameter of an axial end location of the throttle portion, the circumferential protruding portion is positioned on a back surface side of the V-shaped bulging portion, and the bush is inserted into the V-shaped bulging portion.
REFERENCES:
patent: 2220669 (1940-11-01), Allen
patent: 3846045 (1974-11-01), Mincuzzi
patent: 4762465 (1988-08-01), Friedrichs
patent: 4850818 (1989-07-01), Kotera
patent: 6100611 (2000-08-01), Nakase
patent: 2002/0187045 (2002-12-01), Ijima et al.
patent: 2007/0154313 (2007-07-01), Rush et al.
patent: 1 051 644 (1959-02-01), None
patent: 37 13 310 (1988-08-01), None
patent: 909510 (1962-10-01), None
patent: 2003-3991 (2003-01-01), None
Adachi Ryouhei
Hoshino Satoshi
Ikeda Kazuo
Maruyama Satoshi
Okuda Yasutaka
Kershteyn Igor
McGinn Intellectual Property Law Group PLLC
Sigma Co., Ltd.
Yamada Manufacturing Co., Ltd.
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