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Class Information
Number: 416/184
Name: Fluid reaction surfaces (i.e., impellers) > Rotor having flow confining or deflecting web, shroud or continuous passage > Radially extending web or end plate > Spaced intermediate ends of opposed axial flow impeller
Description: Apparatus in which the radially extending surface is positioned between the ends of a working surface, the working fluid simultaneously entering or leaving the working surface in two streams parallel to the axis of rotation, in directions towards or away from each other on both sides of the radially extending surface.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7281897 |
Multi-blade centrifugal blower |
Oct. 16, 2007 |
| 7021891 |
Micro-impeller miniature centrifugal compressor |
Apr. 4, 2006 |
| 7018171 |
Blower with double inlet wheel |
Mar. 28, 2006 |
| 6899515 |
Cross flow fan and air conditioner fitted with the same |
May. 31, 2005 |
| 6705837 |
Welded connector for blade liner |
Mar. 16, 2004 |
| 6695038 |
Heat exchanger type fan |
Feb. 24, 2004 |
| 6540476 |
Centrifugal fan |
Apr. 1, 2003 |
| 6345956 |
Impeller of a blower having air-guiding ribs with geometrical configurations |
Feb. 12, 2002 |
| 5522989 |
Device for aerating waste water |
Jun. 4, 1996 |
| 5501524 |
Method for mixing granulates, powders and liquids and a device therefor |
Mar. 26, 1996 |
| 5478275 |
Radial fan |
Dec. 26, 1995 |
| 5476365 |
Centrifugal blower wheel with forward curved multi-blades |
Dec. 19, 1995 |
| 5368443 |
Blade wheel for a centrifugal pump |
Nov. 29, 1994 |
| 5265996 |
Regenerative pump with improved suction |
Nov. 30, 1993 |
| 5207557 |
Centrifugal fan having variable width blades |
May. 4, 1993 |
| 4874293 |
Modified centrifugal airfoil fan wheel |
Oct. 17, 1989 |
| 4786183 |
Mixing apparatus |
Nov. 22, 1988 |
| 4664593 |
Blade configuration for shrouded motor-driven fan |
May. 12, 1987 |
| 4648720 |
Beating/emulsifying tool for a domestic electrical appliance for food preparation |
Mar. 10, 1987 |
| 4643644 |
Shaft and pulley assembly |
Feb. 17, 1987 |
| 4639193 |
Fan wheel for radial fan |
Jan. 27, 1987 |
| 4589822 |
Centrifugal blood pump with impeller |
May. 20, 1986 |
| 4565495 |
Armoring system for an airfoil centrifugal fan |
Jan. 21, 1986 |
| 4530639 |
Dual-entry centrifugal compressor |
Jul. 23, 1985 |
| 4526506 |
Radial fan with backwardly curving blades |
Jul. 2, 1985 |
| 4515527 |
Center plate-blade interconnection on a centrifugal blower wheel |
May. 7, 1985 |
| 4479735 |
Shrink fit sleeve for rotating machinery |
Oct. 30, 1984 |
| 4470753 |
Radial blower, especially for heaters or air conditioning systems in vehicles |
Sep. 11, 1984 |
| 4406585 |
Impeller assembly for a blower mechanism |
Sep. 27, 1983 |
| 4403910 |
Pump apparatus |
Sep. 13, 1983 |
| 4322200 |
Heavy duty impeller |
Mar. 30, 1982 |
| 4264276 |
Water wheel for exerting flotation and propelling forces |
Apr. 28, 1981 |
| 4253798 |
Centrifugal pump |
Mar. 3, 1981 |
| 4218186 |
Insulated hub arrangement for high temperature centrifugal fan |
Aug. 19, 1980 |
| 4199302 |
Centrifugal blower having improved structure for mounting of rotor assembly |
Apr. 22, 1980 |
| 4173429 |
Centrifugal fan, shaft, plate and hub assembly |
Nov. 6, 1979 |
| 4155151 |
Heavy duty impeller and method of fabricating the same |
May. 22, 1979 |
| 4141674 |
Impeller for a ring compressor |
Feb. 27, 1979 |
| 4116149 |
Centrifugal blade for a turbine - rotor method for making the same |
Sep. 26, 1978 |
| 4090813 |
High-efficiency turbo-machine impellers |
May. 23, 1978 |
| 4086027 |
Shrouded rotor blade annulus for a centripetal turbine stage |
Apr. 25, 1978 |
| 4004541 |
Jet boat pump |
Jan. 25, 1977 |
| 3994630 |
Monorotor turbine and method of cooling |
Nov. 30, 1976 |
| 3953552 |
Agitation flotation cell for the preparation of minerals and coals |
Apr. 27, 1976 |
| 3953151 |
Agitator flotation cell for the preparation of minerals and coals |
Apr. 27, 1976 |
| 3953150 |
Impeller apparatus |
Apr. 27, 1976 |
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