Mold with porous cavity vent
US4165062A · kind A · utility
15Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 13, 1978 |
| Grant date | Aug 21, 1979 |
| Priority date | — |
| Expiry date | Jan 13, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/812
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A mold for injection molding of long thin walled articles has precisely balanced high-volume venting of a narrow cavity space surrounding a long slender cantilevered core and minimized flash. The venting is provided by closing an end of the female mold cavity with a sintered metal plug and forming an end of the mold cavity in an end face of the plug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.