Strapping machine having primary and secondary tensioning units and a control system therefor
CA 2271591 C · Owner: Dierick, Bryan R. · Inventors: Dierick, Bryan R.; Hylton, Gary L.; Chak, Yee C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A strapping machine and method for applying flexible heat-sealable straps around objects includes a programmable control system that receives encoder and other signals from various sensors in the machine to regulate each strapping cycle. A feed/tension unit provides primary tensioning of the strap about the object based on signals from the control system. A motor driven roller and a pinch roller in the feed/tension unit each providing separate encoder signals to the control system to assist the control system in advancing and retracting the strap during feed and tensioning sequences respectively, and provide signals indicating an exact position of the strap. A secondary tension system …
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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 May 13, 1999 and granted October 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 13, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 2021.
- 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.