Mold vents
US5922237A · kind A · utility
16Cited by
8References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 10, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Nov 10, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/812
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A vent for a mold comprising a valve closure member and integrally formed spring opening mechanism for opening the valve closure member such that when mounted in an air release vent the valve closure member may open or close said vent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.