Patent ID: 8087220

Claim:
A rotary sealing and cutting jaw for a film sealing and wrapping machine, the rotary sealing and cutting jaw comprising: a cross member traveling along a circular path which is equidistant from a central rotating axis and maintaining its angular orientation during the entire circular path; a first rotary drum attached to the cross member wherein the drum rotates about the central rotating axis, the first rotary drum having: a driven member offset from the central rotating axis of the drum, the cross member mounted to the driven member so that a path of the driven member and cross member define the circular path; a first slider member encased within the first rotary drum, the first slider having first and second opposed sides, the first side having a first elongate part, the second side having a second elongate part, the first and second elongate parts being generally transverse to each other; a stationary member encased within the first rotary drum, the stationary member fixedly attached to the film sealing and wrapping machine for maintaining the angular orientation of the cross member, the stationary member engaged to the first elongate part of the first slider; a second slider member encased within the first rotary drum, the second slider engaged to the second elongate part of the first slider; lubricant disposed within the first rotary drum for lubricating the first and second slider members and the stationary member; wherein the second slider member slides with respect to the second elongate part, and the first slider member slides with respect to the first elongate part so the cross member travels along the circular path while maintaining the angular orientation of the cross member during the entire circular path.