Unwinding arrangement
CA 1322359 C · Owner: Ab Profor · Inventors: Lesse, Hakan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Unwinding arrangements for material webs which are consumed continuously by e.g. packing machines are provided frequently with an arrangement which brakes the roll so that it does not continue to rotate when the unwinding ceases. To make possible a well adapted braking, also in the case of thin delicate webs or strips, and heavy rolls the unwinding arrangement in accordance with the invention is provided with a maneuvering arm adapted to be acted upon by the material, which in the event of changes in the web tension presses with varying force a rotatable braking appliance against a brake drum combined with the material roll.
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 September 21, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 21, 2010.
- 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.