Method of molding finger rings
US3991809A · kind A · utility
9Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 10, 1975 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Mar 10, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C7/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of molding finger rings of the type having a hollowed-out interior portion, but whose exterior surfaces are identical to rings without such hollowed-out portion comprising securing a wax, shell ring pattern to the exterior surface of a wax, tubular section to form a wax ring pattern and molding a finger ring from said wax ring pattern via an investment method of casting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.