Electrostatic spraying
CA 1260697 A · Owner: Imperial Chemical Industries Plc · Inventors: Noakes, Timothy J.; Hewitt, Nevil E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrostatic spraying apparatus in which an electrode is mounted adjacent to the sprayhead, means are provided for causing a first electrical potential to be applied to liquid emerging from the sprayhead, and further means are provided for applying a second electrical potential to the electrode. The difference between the first and second potentials is sufficient to cause an intense field to be developed between the emerging liquid and the electrode sufficient to, atomise the liquid. The electrode has a core of conducting or semiconducting material sheathed in a "semi-insulating" material. This "semi-insulating" material has a dielectric strength and volume resistivity sufficiently high …
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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
- Granted September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- 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.