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Class Information
Number: 415/58.2
Name: Rotary kinetic fluid motors or pumps > With means for re-entry of working fluid to blade set (e.g., re-entry type device, passage, etc.) > Radial flow runner portion guides re-entry working fluid (e.g., hub, back plate, etc.)
Description: Device wherein the working fluid* flows through the runner* in a direction predominantly inwardly toward or outwardly from the runner"s axis of rotation. The runner comprises a structure which assists in directing the working fluid which has previously contacted the blade* or blade row back to the blade or blade row.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| RE39787 |
Blower |
Aug. 21, 2007 |
| 7229243 |
Compressor |
Jun. 12, 2007 |
| 7175384 |
Centrifugal pump |
Feb. 13, 2007 |
| 7112033 |
Hygienic mechanical seal flushing system for pure liquids in sanitary centrifugal pumps |
Sep. 26, 2006 |
| RE39117 |
Blower |
Jun. 6, 2006 |
| 6893207 |
Impeller for gassy well fluid |
May. 17, 2005 |
| 6881025 |
Suction cup vortex attractor |
Apr. 19, 2005 |
| 6802693 |
Vortex attractor with vanes attached to containing ring and backplate |
Oct. 12, 2004 |
| 6676366 |
Submersible pump impeller design for lifting gaseous fluid |
Jan. 13, 2004 |
| 6402461 |
Pumps |
Jun. 11, 2002 |
| 6361270 |
Centrifugal pump for a gas turbine engine |
Mar. 26, 2002 |
| 6099243 |
Centrifugal pump with seal cooling and debris flushing arrangement |
Aug. 8, 2000 |
| 6012909 |
Centrifugal pump with an axial-field integral motor cooled by working fluid |
Jan. 11, 2000 |
| 5827041 |
Pump and seal arrangement to prevent leakage due to fluid boiling and cavitation |
Oct. 27, 1998 |
| 5735686 |
Combustion blower shaft leakage relief |
Apr. 7, 1998 |
| 5713719 |
Self flushing centrifugal pump |
Feb. 3, 1998 |
| 5669756 |
Recirculating diffuser |
Sep. 23, 1997 |
| 5628616 |
Downhole pumping system for recovering liquids and gas |
May. 13, 1997 |
| 5542817 |
Impeller for a rotary pump |
Aug. 6, 1996 |
| 5525036 |
Suction structure of a sirocco fan housing |
Jun. 11, 1996 |
| 5466118 |
Centrifugal compressor with a flow-stabilizing casing |
Nov. 14, 1995 |
| 5427498 |
High performance centrifugal pump having an open-faced impeller |
Jun. 27, 1995 |
| 5277541 |
Vaned shroud for centrifugal compressor |
Jan. 11, 1994 |
| 5156522 |
Deflector means for centrifugal pumps |
Oct. 20, 1992 |
| 5059091 |
Gas turbine engine compressor assembly |
Oct. 22, 1991 |
| 4964783 |
Device for emptying a liquid-collection tank in a water-conducting household appliance |
Oct. 23, 1990 |
| 4778341 |
Centrifugal pump particularly suitable for pumping fluids with a high gas content |
Oct. 18, 1988 |
| 4475866 |
Liquid metal mechanical pump |
Oct. 9, 1984 |
| 4255080 |
Fans or the like |
Mar. 10, 1981 |
| 4152092 |
Rotary device with bypass system |
May. 1, 1979 |
| 4116171 |
Cooling device for an internal combustion engine |
Sep. 26, 1978 |
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