B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
B65B 53/02 (2006.01) B29C 65/00 (2006.01) B29C 65/14 (2006.01) B65B 7/16 (2006.01) B65D 41/24 (2006.01) B65D 41/54 (2006.01) B29C 35/08 (2006.01) B29C 61/00 (2006.01)
Patent
CA 2094978
A device for heat shrinking thin film onto open-topped containers to form spill-resistant covers is shown. A radiant energy source is intermittently energized in association with timers to direct radiant energy towards the thin film. An energy absorbing body is associated with the thin film to absorb energy and create heat adjacent to the film which in turn causes the thin film to shrink. The energy absorbing body can be the adaptation of the thin film to be opaque to the radiant energy by either being coated with an energy absorbing coating such as printing, or being made partially opaque by means of tinting. The container can also be adapted to absorb energy by including a darkened band adjacent the upper edge of the rim. The device can also interpose an energy absorbing body, such as a darkened aluminum screen adjacent to the film to be heated to cause the thin film to shrink. The device shrinks the thin film around the rim first, then shrinks the film across the top of the container to form a spill-resistant cover. In one embodiment, printed patterns on the film can be used to create perforations.
Bakker William J.
Williams Noel Arnold
Bakker William J.
Piasetzki & Nenniger Llp
Williams Noel Arnold
LandOfFree
Device for heat shrinking film onto an open-topped container does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for heat shrinking film onto an open-topped container, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for heat shrinking film onto an open-topped container will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1856655