Machine for the automatic drawing-in of warp threads
CA 2069949 A1 · Owner: Zellweger Uster Ag · Inventors: Piccirillo, Marcello; Beutler, Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, The machine contains a warp-beam truck (2) for the warp beam (3), a lifting device (4) and a drawing-in frame (5) provided for clamping a warp thread layer (KF) the threading up of which drawing-in frame (5) takes place separately from the drawing-in machine and which after the threading-up, is transported to the drawing-in machine. The drawing-in frame (5) is detachably mounted on the lifting device (4) and, before the drawing-in is, transferred to the drawing-in machine in which it is displaceably arranged in the longitudinal direction of the latter. When it is displaced during the drawing-in operation, the drawing-in frame (5) is driven separately from the lifting device (4) …
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
- Filed October 22, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 22, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 2013.
- 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.