The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2003
Filed:
Jan. 29, 2001
Thomas Strasser, Benken, CH;
SIG Pack Systems AG, Beringen, CH;
Abstract
An apparatus for sealing a wrapper sleeve includes a first peripheral surface rotating about a first axis and having a generatrix parallel to and at a maximum distance from, the first axis and a radius of curvature smaller throughout the circumferential surface length than the maximum distance. A second peripheral surface rotates about a second axis oriented parallel to the first axis. The first and second peripheral surfaces define a line of contact with the wrapper sleeve therebetween. The first and second surfaces rotate in synchronism and roll on one another effecting sealing of the wrapper sleeve as the wrapper sleeve is advanced. A device displaces the first axis relative to the second axis in a direction transverse to the advancing direction of the wrapper sleeve for effecting displacement of the line of contact in the advancing direction as the first and second surfaces rotate.