Bottom seal bag making machine
CA 1267553 C · Owner: Fmc Corporation · Inventors: Lagain, Georges
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A machine for manufacturing and stacking bags pouches and the like made from a sheath of thermoplastic material after they have been welded and cut from the sheet is disclosed. A stacking device is provided for the bags when made from thin thermoplastic sheaths without any deformation of the upstream end of the stacked bags. The machine is designed to limit the intermittent back and forth motions of its components to improve its frequency of operation. Upper and lower welding jaws are provided for use in defining the bag edges cut from the sheath. The lower welding jaw is provided with an impaling function by impaling the bags over the needles or pins while making only a very short run and …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted April 10, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 2007.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.