Method of electrostatically spray-coating a workpiece with paint
CA 2061069 C · Owner: Arai, Hiroshi · Inventors: Ishibashi, Ichirou; Toyama, Niichi; Arai, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of electrostatically spray-coating a workpiece with electrically-conductive paint subjected to a voltage using a spray gun, the spray gun having a rotatable atomizing head attached to a rotator for rotating the atomizing head. A paint supply line supplies paint to the atomizing head and a cleaning line supplies cleaning liquid and air, where the air is under a pressure to the, atomizing head. The rotator has a path for accommodating the paint supply line and the cleaning line therein that, path being formed in a cylindrical shape along a rotative axis of the rotator. The cleaning line is disposed coaxially in the path with an end opening thereof disposed in the atomizing head. 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 February 13, 1992 and granted June 29, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 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.
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.