Apparatus for winding or unwinding a web of material
CA 1310311 C · Owner: Jagenberg Aktiengesellschaft · Inventors: Weiss, Peter; Welkers, Knut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for winding or unwinding a web of material comprises two stands spaced apart from one another in which horizontal clamping chucks that can be inserted in the ends of a winding tube are respectively mounted so as to rotate. The apparatus has a device for supporting the reel on the underside during winding or unwinding and movable with the reel. In a preferred embodiment the supporting device comprises an endless belt mounted in a height-adjustable frame so as to be freewheeling. With this device heavy reels can be wound or unwound without crepe folds or tears occurring.
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 November 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 17, 2009.
- 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.