Vented mold and method for producing molded article
US7878785B2 · kind B2 · utility
10Cited by
21References
61Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2008 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Dec 15, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/812
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates mold, particularly a mold for producing foam articles. In a preferred embodiment, the mold comprises a lid and a bowl releasingly engageable to define a mold cavity, the lid comprising: (i) a vent having a passageway for gas to escape from the mold cavity, and (ii) a plurality of grooves connected to the vent. The use of a plurality of grooves/slots in the mold cavity surface effectively acts as a siphon to draw gas away from the composition to be molded. The plurality of grooves/slots is connected to one or more vents which then allows for escape of the gas from the mold cavity to the exterior of the mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.