Class F04D : NON-POSITIVE-DISPLACEMENT PUMPS
Subclass 1/14: Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps (adapted for pumping specific fluids F04D 7/00; priming or boosting F04D 9/00; pumping liquids and elastic fluids at the same time F04D 31/00) Pumps raising fluids by centrifugal force within a conical rotary bowl with vertical axis
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11939993 | Overflow vortex transfer system | Nov 29, 21 | Mar 26, 24 | Pyrotek Inc. |
| 11697399 | Washer fluid pump | Nov 19, 19 | Jul 11, 23 | Hyundai Motor Company; Kia Motors Corporation; |
| 11191283 | Method and installation for the treatment of liquid food products | Jul 10, 17 | Dec 07, 21 | GEA TDS GMBH |
| 11187233 | Overflow vortex transfer system | Oct 20, 16 | Nov 30, 21 | Pyrotek Inc. |
| 10900488 | Intelligent clogging-free water-cooled multifunctional pump | Sep 12, 18 | Jan 26, 21 | GP Enterprises Co., Ltd |
| 9904300 | Liquid transport apparatus | Sep 27, 13 | Feb 27, 18 | I'MSEP CO., LTD. |
| 9599111 | Riserless recirculation/transfer pump and mixer/pre-melter for molten metal applications | Oct 31, 11 | Mar 21, 17 | Not available |
| 9534601 | Pump | Mar 08, 12 | Jan 03, 17 | ENHANCED DRILLING AS |
| 9506346 | Overflow vortex transfer system | Jun 15, 10 | Nov 29, 16 | PYROTEK, INC. |
| 9234520 | Riserless transfer pump and mixer/pre-melter for molten metal applications | Apr 09, 12 | Jan 12, 16 | PYROTEK, INC. |
| 9133858 | Diffuser case removal apparatus and method | Jun 19, 13 | Sep 15, 15 | PRATT & WHITNEY CANADA CORP. |
| 6431828 | Non-planar rotor cover for a centrifugal pump | Apr 05, 00 | Aug 13, 02 | ENVIROTECH PUMPSYSTEMS, INC. |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2019/0353,165 | Systems and Methods for Managing Cuttings Using Eddy Pump and Tank | May 09, 19 | Nov 21, 19 | Not available |
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