Repulsion device for low capacitance electrostatic painting systems
CA 2060683 A1 · Owner: Nordson Corporation · Inventors: Hartle, Ronald J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, An electrostatic repulsion device is provided in an electrostatic spray paint booth having a grounded ceiling and conveyor to improve transfer efficiency in applying the paint to a workpiece and maintain a safe working environment without requiring protective fencing between an operator and the application equipment. The device includes a length of electrical cable having a central resistive conductor and an insulation layer. The cable is designed to produce low electrical capacitance in operation when connected to a high voltage source. Conductive pins are mounted along the cable through the insulation to contact the conductor. The conductive pins are arranged …
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 February 5, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 5, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2014.
- 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.