Abstract: The present invention provides a restored winding core and a method for manufacturing the same, wherein at least one discarded winding core is first collected. At least one of the extremities of the discarded winding core is internally ground on a predetermined grinding distance to remove the crimping portion and provide a ground portion thereon. The ground portion defines a female joint socket extending at the corresponding extremity of the discarded winding core for providing a machined core extremity. The method also comprises the step of providing at least one hollow insert tube diametrically snugly fitting into the female joint socket. The at least one insert tube is inserted inside the corresponding female joint socket for providing a restored core extremity. The present invention thus allows to restore the damaged extremities of a winding core which can then be reused as a new winding core of the same length.

Abstract: The invention concerns an elongated protective corner for the transport and/or packaging of products. The corner has at least two non-corrugated paperboard plies combined together to create two perpendicular wings and an apex. The plies form multiple ply sections, and at least one of the ply sections of a given ply overlaps another ply section of the same ply. This overlapping arrangement gives the apex a resistance force of about 100 to about 500 lbs. The thickness of the corner can vary, with each wing being in the range of about 100 to about 250 points, and each ply is made from paperboard having a grammage of about 120 to about 380 g/m2. The resistance force can be determined by mounting the corner upon two blocks, and applying a force to the apex at a middle of the corner until a fracture is detected.

Abstract: The present invention provides a recyclable composite container. The recyclable composite container comprises a cardboard hollow body having an open end defining an opening, the body being formed by a sidewall having inner and outer surfaces, the sidewall being provided with an aperture at a distance from the open end. The recyclable composite container also comprises a framing element removably connectable to the open end having a collar sized and shaped for snugly fitting over said open end; and a resilient arm extending from the collar, the arm extending along the inner surface of the sidewall and having a projection sized and shaped to be removably fitted in the aperture of the sidewall of the hollow body.

Abstract: The invention provides a reusable formwork for forming a polygonal upright concrete column using a plurality of retaining devices and a plurality of panels arranged with the retaining devices for providing a forming cavity between the panels adapted to receive concrete therein. Hooping means are used to hoop the panels forming the cavity.

Abstract: The present invention provides a restored winding core and a method for manufacturing the same, wherein at least one discarded winding core is first collected. At least one of the extremities of the discarded winding core is internally ground on a predetermined grinding distance to remove the crimping portion and provide a ground portion thereon. The ground portion defines a female joint socket extending at the corresponding extremity of the discarded winding core for providing a machined core extremity. The method also comprises the step of providing at least one hollow insert tube diametrically snugly fitting into the female joint socket. The at least one insert tube is inserted inside the corresponding female joint socket for providing a restored core extremity. The present invention thus allows to restore the damaged extremities of a winding core which can then be reused as a new winding core of the same length.

Abstract: The present invention provides a restored winding core and a method for manufacturing the same, wherein a plurality of discarded winding cores is first collected. Each extremity of each core is internally ground on a predetermined grinding distance to remove the crimping portion and provide a ground portion thereon defining a female joint socket. The method also comprises the step of providing a plurality of hollow insert tubes diametrically snugly fitting into the female joint sockets. Each insert tube is inserted inside the corresponding female joint sockets of two respective cores for joining the two cores end to end to provide an endless recycled master core having an internal surface continuity therein. A finishing fold is spirally wound around the recycled master core and therealong for providing a restored winding core that can be cut to any desired length. Advantageously, the restored winding cores can be continuously manufactured.

Abstract: The invention provides a reusable formwork for forming a polygonal upright concrete column using a plurality of retaining devices and a plurality of panels arranged with the retaining devices for providing a forming cavity between the panels adapted to receive concrete therein. Hooping means are used to hoop the panels forming the cavity.