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Class Information
Number: 415/71
Name: Rotary kinetic fluid motors or pumps > Runner has spirally arranged blade or fluid passage
Description: Apparatus comprising (1) a blade* coiling around a runner* or (2) a working fluid* conduit in the peripheral wall or interior of a runner*, coiling around or through the runner*, the blade* or conduit, while coiling, approaching or receding from the runner* axis or advancing axially of the runner*, and passing at least once completely around the runner*.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7568896 |
Pump and method |
Aug. 4, 2009 |
| 7540706 |
Wind harnessing system |
Jun. 2, 2009 |
| 7497657 |
Beam jet propellor |
Mar. 3, 2009 |
| 7494315 |
Helical taper induced vortical flow turbine |
Feb. 24, 2009 |
| 7488151 |
Vortical flow rotor |
Feb. 10, 2009 |
| 7419354 |
Centrifugal pump with screw pump accelerator |
Sep. 2, 2008 |
| 7399155 |
Fluid flow guide element and fluid flow apparatus equipped therewith |
Jul. 15, 2008 |
| 7344353 |
Helical wind turbine |
Mar. 18, 2008 |
| 7207767 |
Inducer, and inducer-equipped pump |
Apr. 24, 2007 |
| 7097416 |
Rotary disc pump |
Aug. 29, 2006 |
| 7052230 |
Pump assembly |
May. 30, 2006 |
| 6890142 |
Direct condensing turbine |
May. 10, 2005 |
| 6409468 |
Turbo-molecular pump |
Jun. 25, 2002 |
| 6390768 |
Pump impeller and related components |
May. 21, 2002 |
| 6343909 |
Centrifugal pump |
Feb. 5, 2002 |
| 6013140 |
Laser hardening of screw forms |
Jan. 11, 2000 |
| 5893702 |
Gas friction pump |
Apr. 13, 1999 |
| 5782604 |
Pump |
Jul. 21, 1998 |
| 5487644 |
Pump having a single or a plurality of helical blades |
Jan. 30, 1996 |
| 5427501 |
Fuel pump impeller with pump down extension |
Jun. 27, 1995 |
| 5425617 |
Constant static pressure runner in an axial flow turbine |
Jun. 20, 1995 |
| 5344281 |
Rotary vortex machine |
Sep. 6, 1994 |
| 5297925 |
Water column floating pump |
Mar. 29, 1994 |
| 5261783 |
Kinetic pump having a centerless impeller |
Nov. 16, 1993 |
| 5240372 |
Centrifugal pumps and systems utilizing same |
Aug. 31, 1993 |
| 5110483 |
Separation of particles adsorbed on carrier material |
May. 5, 1992 |
| 5090867 |
Rotating fluid machine for reversible operation from turbine to pump and vice-versa |
Feb. 25, 1992 |
| 4792282 |
Liquid pump |
Dec. 20, 1988 |
| 4779575 |
Liquid friction heating apparatus |
Oct. 25, 1988 |
| 4655678 |
Combined turbo-molecular pump |
Apr. 7, 1987 |
| 4648796 |
Centrifugal pump for very thick and/or viscous materials and products |
Mar. 10, 1987 |
| 4531892 |
Apparatus for pumping of pulp |
Jul. 30, 1985 |
| 4529354 |
Total flow turbine |
Jul. 16, 1985 |
| 4427336 |
Single vane rotodynamic impeller |
Jan. 24, 1984 |
| 4363572 |
Injector for a material transport system |
Dec. 14, 1982 |
| 4347035 |
Centrifugal pump with single blade impeller |
Aug. 31, 1982 |
| 4188786 |
Hydraulic machine |
Feb. 19, 1980 |
| 4003672 |
Internal combustion engine having coaxially mounted compressor, combustion chamber, and turbine |
Jan. 18, 1977 |
| 3967914 |
Power generating system |
Jul. 6, 1976 |
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