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Class Information
Number: 415/90
Name: Rotary kinetic fluid motors or pumps > Smooth runner surface for working fluid frictional contact (e.g., unbladed runner, etc.)
Description: Apparatus comprising a runner* wall having an even, substantially uninterrupted or bladeless* surface over which the working fluid* flows, the friction of the contact layer between the runner* and the fluid being the only cause of motion of the runner* or of the fluid.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7614844 |
Vacuum pumping arrangement |
Nov. 10, 2009 |
| 7572096 |
Vacuum pump |
Aug. 11, 2009 |
| 7553123 |
Annular support for rolling bearings |
Jun. 30, 2009 |
| 7553124 |
Pump for pumping high-viscosity liquids, slurries, and liquids with solids |
Jun. 30, 2009 |
| 7500821 |
Vacuum pump |
Mar. 10, 2009 |
| 7500822 |
Combined vacuum pump load-lock assembly |
Mar. 10, 2009 |
| 7478990 |
Bracket/spacer optimization in bladeless turbines, compressors and pumps |
Jan. 20, 2009 |
| 7445422 |
Hybrid turbomolecular vacuum pumps |
Nov. 4, 2008 |
| 7404698 |
Turbomolecular pump with static charge control |
Jul. 29, 2008 |
| 7390164 |
Fixing structure for fixing rotor to rotor shaft, and turbo molecular pump having the fixing structure |
Jun. 24, 2008 |
| 7379301 |
Integrated liquid cooling system |
May. 27, 2008 |
| 7341424 |
Turbines and methods of generating power |
Mar. 11, 2008 |
| 7341423 |
Molecular pump and connecting device |
Mar. 11, 2008 |
| 7311491 |
Molecular drag, turbomolecular, or hybrid pump with an integrated valve |
Dec. 25, 2007 |
| 7303062 |
Bulk material pump feeder with reduced disk jamming |
Dec. 4, 2007 |
| 7293955 |
Supersonic gas compressor |
Nov. 13, 2007 |
| 7280950 |
Locomotive diesel engine turbocharger and turbine stage constructed with turbine blade vibration suppression methodology |
Oct. 9, 2007 |
| 7264439 |
Evacuating device |
Sep. 4, 2007 |
| 7241106 |
Combined cycle boundary layer turbine |
Jul. 10, 2007 |
| 7223064 |
Baffle configurations for molecular drag vacuum pumps |
May. 29, 2007 |
| 7192244 |
Bladeless conical radial turbine and method |
Mar. 20, 2007 |
| 7165931 |
Compact molecular-drag vacuum pump |
Jan. 23, 2007 |
| 7134835 |
Process for manufacturing a stator for vacuum pump and stator obtained thereby |
Nov. 14, 2006 |
| 7128528 |
Bearings for CO.sub.2 refrigerant compressor use, compressor using the same, and applications of the same |
Oct. 31, 2006 |
| 7097416 |
Rotary disc pump |
Aug. 29, 2006 |
| 7086827 |
Turbo molecular high-vacuum pump with a circular intake area |
Aug. 8, 2006 |
| 7059823 |
Molecular pump equipped with flange having buffering portion |
Jun. 13, 2006 |
| 7059828 |
Gas friction pump |
Jun. 13, 2006 |
| 7044288 |
Bulk material pump feeder with reduced disk jamming |
May. 16, 2006 |
| 7033132 |
Bladeless pump |
Apr. 25, 2006 |
| 7021888 |
Ultra-high speed vacuum pump system with first stage turbofan and second stage turbomolecular pump |
Apr. 4, 2006 |
| 7011491 |
Friction vacuum pump |
Mar. 14, 2006 |
| 7008176 |
Molecular speed and direction selection |
Mar. 7, 2006 |
| 6973792 |
Method of and apparatus for a multi-stage boundary layer engine and process cell |
Dec. 13, 2005 |
| 6953317 |
Turbo-molecular pump |
Oct. 11, 2005 |
| 6932564 |
Heteroscopic turbine |
Aug. 23, 2005 |
| 6926493 |
Turbo-molecular pump |
Aug. 9, 2005 |
| 6918741 |
Molten metal pump impeller system |
Jul. 19, 2005 |
| 6910850 |
Vacuum pump |
Jun. 28, 2005 |
| 6890146 |
Compound friction vacuum pump |
May. 10, 2005 |
| 6890145 |
Vacuum pump |
May. 10, 2005 |
| 6887032 |
Turbo/drag pump having a composite skirt |
May. 3, 2005 |
| 6877949 |
Pumping stage for a vacuum pump |
Apr. 12, 2005 |
| 6870288 |
Rotary electric machine |
Mar. 22, 2005 |
| 6866472 |
Vacuum pump |
Mar. 15, 2005 |
| 6854956 |
Turbo-molecular pump |
Feb. 15, 2005 |
| 6840736 |
Vacuum pump |
Jan. 11, 2005 |
| 6832888 |
Molecular pump for forming a vacuum |
Dec. 21, 2004 |
| 6832887 |
Bulk material pump feeder |
Dec. 21, 2004 |
| 6824357 |
Turbomolecular pump |
Nov. 30, 2004 |
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