Patent ID: 7441390

Claim:
A device for forming containers produced continuously from a tubular wrapper fed along a substantially vertical direction of advance, comprising: at least one support carriage movable along a respective closed path which closed path has at least one active segment parallel to said direction of advance; a sealing base engaged to said support carriage for being actuated on a first lateral face of said tubular wrapper at a sealing region of the wrapper; a contrasting element mounted on the support carriage and movable between a first closed position, in which the contrasting element approaches said base and abuts against a second lateral face of the tubular wrapper opposite to the first lateral face at the sealing region, and a second position in which the contrasting element is movable away from said base ( 11 ); at least one supporting guide to guide the support carriage along said closed path; a first motor member to actuate the support carriage along said active segment; a second motor member to actuate the support carriage along a passive segment of the closed path opposite to said active segment; and means for cutting said tubular wrapper operatively active at said sealing region to obtain said containers.