Container-unroller with tear cut and electric cut, provided with a mechanism for the anti-rewrapping one-way extraction of film, aluminium sheet or similar wrapped around a roll
OwnerPatrizio De Rossiinventor
Life of this patent
Estimating the term…
Abstract
A container-unroller for film, aluminum sheet or similar material wrapped around a roll where the container-unroller has a tubular body for the accommodation of a roll to be contained and a means for control of one-way rotation of said roll. A means for making a hot electric cut and a means for making a tear cut are positioned on the same device where the means for making a tear cut are a metallic saw-toothed bar, connected to electric current. means for making a hot electric cut.
Claims13
A container-unroller of a roll (5) of a film, an aluminium sheet or a sheet of similar material, said container-unroller comprising a hollow tubular body (A), that accommodates only one roll (5) of a film, said hollow tubular body (A) being provided with one slit (12,12′), having edges, for the passage of the film or sheet from inside to outside said hollow tubular body (A), said container-unroller additionally being provided with controlling means for one-way rotation of said roll (5), means for hot electric cutting and means for tear cutting, wherein said means for hot electric cutting and said means for tear cutting are placed approximately 3 cm from said edges of said slit (12) in an outside direction wherein said means for hot electric cutting comprise a means for electric current generation and said means for tear cutting consist of a saw-toothed bar wherein said means for hot electric cutting and said means for tear cutting are mounted on a supporting device (D), wherein said container-unroller is sized to be held in one hand, wherein said means for hot electric cutting and said means for tear cutting are placed in different positions on said supporting device (D) and said supporting device (D) therefore alternatively display outwardly said means for electric cutting and said means for tear cutting.
A container-unroller of a roll (5) of a film, an aluminium sheet or a sheet of similar material, said container-unroller comprising a hollow tubular body (A), said hollow tubular body (A) being adapted to accommodates only one roll (5), said hollow tubular body (A) being provided with one slit (12,12′), having edges, for the passage of the film or sheet from inside to outside said hollow tubular body (A), said container-unroller additionally being provided with controlling means for one-way rotation of said roll (5), means for hot electric cutting and means for tear cutting, wherein said means for hot electric cutting and said means for tear cutting are placed approximately 3 cm from said edges of said slit (12) in an outside direction wherein said means for hot electric cutting and said means for tear cutting are mounted each on one of two-interchangeable supporting devices (B,C), adapted to be coupled with said hollow tubular body, wherein said means for hot electric cutting comprise a means for electric current generation and said means for tear cutting consist of a saw-toothed bar, wherein said container-unroller is sized to allow said container-unroller to be held in one hand, and wherein said means for hot electric cutting and said means for tear cutting are placed in different positions on said respective supporting device (B, C) and said respective supporting device (B, C) therefore alternatively display outwardly said means for electric cutting and said means for tear cutting.
A container-unroller of a roll (5) of a film, an aluminium sheet or a sheet of similar material, said container-unroller comprising a hollow tubular body (A), said hollow tubular body (A) being adapted to accommodate only one roll (5), said hollow tubular body (A) being provided with one slit (12,12′), having edges, for the passage of the film or sheet from inside to outside of said hollow tubular body (A), said container-unroller additionally being provided with controlling means for one-way rotation of said roll (5), means for hot electric cutting and means for tear cutting, wherein said means for hot electric cutting and said means for tear cutting are placed approximately 3 cm from said edges of said slit (12) in an outside direction wherein said means for hot electric cutting comprise a means for electric current generation and said means for tear cutting consist of a saw-toothed bar wherein said means for hot electric cutting and said means for tear cutting are mounted on a supporting device (D) wherein said container-unroller is sized to allow said container-unroller to be held in one hand that may be rotated so that said means for hot electric cutting and means for tear cutting may alternatively contact said film or sheet, and wherein said means for hot electric cutting and said means for tear cutting are placed in different positions on said supporting device (D) and said supporting device (D) therefore alternatively display outwardly said means for electric cutting and said means for tear cutting.
A container-unroller of a film, an aluminium sheet or a sheet of similar material wrapped around a roll (5), said container-unroller comprising a hollow tubular body (A), said hollow tubular body (A) being adapted to accommodate only one roll (5), said hollow tubular body (A) being provided with one slit (12,12′), having edges, for the passage of the film or sheet from inside to outside said hollow tubular body (A), said container-unroller additionally being provided with controlling means for one-way rotation of said roll (5), means for hot electric cutting and means for tear cutting, wherein said means for hot electric cutting and said means for tear cutting are placed approximately 3 cm from said edges of said slit (12) in an outside direction wherein said means for hot electric cutting comprise a means for electric current generation and said means for tear cutting consist of a saw-toothed bar wherein said means for hot electric cutting and said means for tear cutting are mounted on a supporting device (D), wherein said container-unroller is sized to be held in one hand and said means for hot electric cutting comprise an extended metallic wire (26′) that is connected to means for tensioning said extended metallic wire (26′) that comprise a spring (60) that prevents loosening of said extended wire (26′) by expansion of said extended wire (26′) as a result of heating of said extended wire (26′), and wherein said means for hot electric cutting and said means for tear cutting are placed in different positions on said supporting device (D) and said supporting device (D) therefore alternatively display outwardly said means for electric cutting and said means for tear cutting.
Dependencies are inferred from the claim text.