Charge injection device
CA 1267633 C · Owner: Cerkanowicz, Anthony E. · Inventors: Cerkanowicz, Anthony E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A charge injection device is disclosed which issues free charge injected fluid from an orifice into a region of lower pressure downstream. To avoid significant impairment of charge injection level or efficiency by an electrode pair in the region of the orifice due to the reduced downstream pressure, the pressure in the region of orifice is raised, close to the pressure in the charge injection chamber , by feeding gas such as, sulfur hexafluoride, to a chamber having an outlet orifice issuing into the lower pressure downstream region.
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
- Granted April 10, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 2007.
- 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.