Electrostatic ion thruster with improved thrust modulation
CA 1301374 C · Owner: He Holdings, Inc. · Inventors: Beattie, John R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ion propulsion system is disclosed. The invention includes an ionizing system for ionizing a gaseous propellant within a chamber to produce a plasma. The ionizing system includes a cathode 14 to provide a source of electrons and anodes 11 and 13 to accelerate the electrons to velocities sufficient to ionize the gaseous propellant. The invention further includes an ion extraction system 20 for expelling an ion beam from the plasma. A particularly novel aspect of the invention is the provision of a control system 45 and 46 for modulating the current of the ion beam by modulating the current through the anode 11 and 13.
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 May 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 2009.
- 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.