Patent ID: 8065862
Filing Date: 2011-11-29
Classification: B65B

Abstract:
1. A method for packaging a product in a shaped wrapper of sheet material, comprising the operations of: obtaining an intermediate packaging, including a first sheet having a cup-shaped configuration, with a container wall including the product and a mouth surrounded by a radial flange formed by a peripheral region of said sheet, and a second sheet having a central region disposed to cover the mouth and a peripheral region disposed in a superimposed relationship with respect to the peripheral region of the first sheet forming the flange, and shaping said peripheral regions of the intermediate packaging in order to form a wrapper portion shaped as a cup which surrounds the container wall of the first shaped sheet at a radial distance, by means of shaping means which comprise a forming cavity able internally to receive the intermediate packaging and a male member, in the form of a punch, able to penetrate into the forming cavity in order to force the peripheral regions of the first and second sheets between the inner surface of the forming cavity and the outer surface of said male member, characterized in that the male member in the form of a punch comprises a petal mandrel whose petals may move between a radially extended position in which the petals are able to encompass the container wall of the intermediate packaging and a retracted position in which the petals are able to penetrate into the forming cavity so as to form the cup formed by the radial flanges adhering to the product.