Method of core removal from molded products
US5262100A · kind A · utility
21Cited by
34References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1991 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Dec 9, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C33/52
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of removing a core from a molded product in which the core is formed of a particulate inert material, such as sand, bound together by a cured water soluble binder. The binder is cured by heat. The core and molded product are exposed to water, preferably heated water in a bath or steam, after the product has been molded to rapidly disintegrate the core and remove it from the molded product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.