Vented mold and method for producing molded article

Details Vented mold and method for producing molded article Vented mold and method for producing molded article

B - Operations, Transporting

29

C

B29C 33/10 (2006.01) B29C 44/34 (2006.01) B29C 44/58 (2006.01)

Patent

CA 2566760

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.

L'invention concerne un moule, plus particulièrement un moule permettant de produire des articles en mousse. Dans un mode de réalisation préféré, le moule comprend un couvercle et une cuve qui peuvent être mis en contact libérable de façon à définir une cavité du moule, le couvercle comprenant : (i) un évent muni d'un passage permettant au gaz de s'échapper de la cavité du moule et (ii) une pluralité de sillons reliés à l'évent. L'utilisation d'une pluralité de sillons/fentes à la surface permet d'agir comme un siphon afin d'aspirer le gaz de la composition à mouler. La pluralité de sillons/fentes est reliée à un ou plusieurs évents, ce qui permet au gaz de s'échapper vers l'extérieur du moule.

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