| 摘要 |
<p>The invention relates to a first addition certificate added to the french patent N° 88 11472 concerning an automatic obturation device by thermal conditioning effect for food preparations with differed consumption. The invention is comprised of the combination on the one hand of a tongue (1) articulated to the edge of a boat-shaped receptacle (3) and folded inwards of the latter after filling with food products and before sealing the obturation film (4), said articulated tongue (1) including on its horizontal face a perforated seat (5) wherein is deposited a fusible composite resin droplet (6) which has the property of becoming porous at a predetermined temperature, on the other hand, of a sealing tool including a point (7) positionned to perforate the film (4) at the precise location where is situated the fusible composite resin droplet (6). The device is intended to the specific sealing of boat-shaped receptacles for food.</p> |
