Apparatus for securing fittings in a thermoplastic foil web
CA 2063733 A1 · Owner: Solbeck, Peter · Inventors: Solbeck, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for manufacturing a foil web of a thermoplastic with locally secured fittings (21), for use as tarpoulins or similar articles, comprises an extruder head (1) with an entirely or mainly downwards directed ejection orifice and two counterrotating rollers (25, 26) with a nip for calibrating the extruded foil (22). In a feeding device with a vertical supply magazine (10) a stack of fittings (5) is accommodated which by means of a guiding duct (2) may be guided into a discharge duct (3) extending towards the roller nip. The guiding device is electrically operated and an electrically controlled stop member (15) with an associated fitting sensing element (12) are arranged at the …
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 July 5, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 5, 2012.
- 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.