Method for eliminating shrinkage cavities in cast cosmetic sticks and similar products
US4147750A · kind A · utility
9Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1978 |
| Grant date | Apr 3, 1979 |
| Priority date | — |
| Expiry date | Jul 24, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/032
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Prepares a wax-based applicator stick by pouring a melt of said wax-based material into a dispenser container, allowing said material to cool to a semi-solid state, inserting a tubular probe into the center of said mass, withdrawing the same to form a cavity and then flaming the mass to eliminate the cavity so formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.