A grounding system for rotating fixtures in electrically conductive mediums
CA 2411664 C · Owner: Sst Corporation · Inventors: Andreae, Bradley S.; Andreae, Bradley M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An e-coating line for small parts includes a series of load carriers each having a rotatable shaft supporting an apertured metal barrel with parts to be treated. Electrically conductive drive chains and sprockets connect the rotatable shaft to barrel shafts to suspend the barrel from the carrier for submersion of the barrel into treating tanks including an e-coating tank. The chain/sprocket units are self cleaning and establish a reliable grounding of the barrels through the load carrier and slide rail conveyor conducting the load carriers to ground. A rack is mounted on a support secured to move with the load carriers. The rack engages a drive sprocket on the rotatable shaft. A …
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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 November 13, 2002 and granted February 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2024.
- 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.