Apparatus for folding paper sacks to z-shape
CA 1209606 A · Owner: Bates Ventilsaekke Co. A/S · Inventors: Berthelsen, Ernst R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for folding paper sacks to Z shape about transverse fold lines comprises scoring wheels for defining the fold lines folding blades and folding means consisting of folding bars for turning the sacks about the folding blades. A first double belt conveyor clampingly engages each sack near its base or filling aperture and conveys it continuously through the folding means. Two parallel shafts mounted in the machine frame in a vertical plane transverse to the conveying direction each carry two spaced co-operating scoring wheels which provide the passing sacks with scoring in opposite senses. A second double belt conveyor provided parallel to the first engages the sacks at the opposite …
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 August 12, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 12, 2003.
- 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.