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Class Information
Number: 416/231A
Name: Fluid reaction surfaces (i.e., impellers) > Specific blade structure (e.g., shape, material, etc.) > Apertured or permeable > Mixers or agitators
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7316502 |
Mixing blade, blending apparatus, and method of mixing |
Jan. 8, 2008 |
| 7114844 |
Aeration apparatus and method |
Oct. 3, 2006 |
| 6524073 |
Spinner with continuous 3-fold symmetry for multiple utilitarian, educational and ornamental uses |
Feb. 25, 2003 |
| 6364614 |
Spinner with continuous 3-fold symmetry for multiple utilitarian, educational and ornamental uses |
Apr. 2, 2002 |
| 5938325 |
Stirring rod with flexible extensions for mixing materials |
Aug. 17, 1999 |
| 5797728 |
Disk-shaped impeller for mixing fluids |
Aug. 25, 1998 |
| 5785424 |
Agitator blade having agitators with open first and second ends and inner fabrics therein |
Jul. 28, 1998 |
| 5762417 |
High solidity counterflow impeller system |
Jun. 9, 1998 |
| 5470148 |
Portable cement-mixing apparatus having upper and lower notched plates affixed to a shaft |
Nov. 28, 1995 |
| 5326168 |
Stirring blade unit |
Jul. 5, 1994 |
| 5318360 |
Gas dispersion stirrer with flow-inducing blades |
Jun. 7, 1994 |
| 5277550 |
Agitating vane |
Jan. 11, 1994 |
| 5261745 |
Mixing apparatus with frusto-conically shaped impeller for mixing a liquid and a particulate solid |
Nov. 16, 1993 |
| 5253980 |
Agitating vane |
Oct. 19, 1993 |
| 5211924 |
Method and apparatus for increasing conversion efficiency and reducing power costs for oxidation of an aromatic alkyl to an aromatic carboxylic acid |
May. 18, 1993 |
| 5090816 |
Fluid mixing device |
Feb. 25, 1992 |
| 4302940 |
Patterned porous laminated material |
Dec. 1, 1981 |
| 4092513 |
Stirrer hub assembly |
May. 30, 1978 |
| 4083653 |
Stirring device |
Apr. 11, 1978 |
| 4021024 |
Perforated baffle-impeller and process of concentrating dense masses |
May. 3, 1977 |
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