Patent information:
| Patent: | Utility 1,569,251 |
| Patented: | January 12, 1926 |
| Applied: | March 1, 1923 |
| Title: | Method of Preparing Clay or Body Composition for Ceramic Articles |
| Description: | Method of preparing plastic clay without the use of filter presses by mixing dry ingredients with water, filtering, and evaporation of water with heat and vacuum before sending to the pug mill |
| Category: | Manufacturing |
| Assigned to: | The Ohio Brass Co. |
Patentee Information:
Class and subclass information:
| Class: | 501 | COMPOSITIONS: CERAMIC |
| Subclass: | 149 | CERAMIC COMPOSITIONS; Clay containing (e.g., porcelain, earthenware, etc.); Clay pretreatment; Water pretreatment; |
| Class: | 264 | PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES |
| Subclass: | DIG39 | Treatment of clay before and after molding; |
Known specimens:
|