Patent information:
| Patent: | Utility 2,261,583 |
| Patented: | November 4, 1941 |
| Applied: | June 27, 1941 |
| Title: | Method of Making Hollow Forms |
| Description: | Method of casting hollow forms |
| Category: | Manufacturing |
| Assigned to: | The Colonial Insulator Co. |
Patentee Information:
| HEMPHILL, James R. | Akron, OH |
Class and subclass information:
| Class: | 156 | ADHESIVE BONDING AND MISCELLANEOUS CHEMICAL MANUFACTURE |
| Subclass: | 89.11 | METHODS; Surface bonding and/or assembly therefor; With vitrification or firing ceramic material; |
| Class: | 156 | ADHESIVE BONDING AND MISCELLANEOUS CHEMICAL MANUFACTURE |
| Subclass: | 245 | METHODS; Surface bonding and/or assembly therefor; With lamina formation by molding or casting; In configured mold; |
| Class: | 264 | PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES |
| Subclass: | 86 | REMOVAL OF LIQUID COMPONENT OR CARRIER THROUGH POROUS MOLD SURFACE; |
| Class: | 264 | PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES |
| Subclass: | 219 | WITH STEP OF MAKING MOLD OR MOLD SHAPING, PER SE; |
| Class: | 264 | PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES |
| Subclass: | 637 | OUTSIDE OF MOLD SINTERING OR VITRIFYING OF SHAPED INORGANIC ARTICLE OR PREFORM; Producing hollow article (e.g., tube, etc.); Casting suspension of particles against forming surface; Removal of liquid component or carrier through porous or absorbent mold surface; |
| Class: | 425 | PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS |
| Subclass: | 269 | DIPPING TYPE SHAPING MEANS; |
Known specimens:
| None known |
Drawings:
Page 1 |