Electrical ignition device for regeneration of a particulate trap
CA 1284955 C · Owner: Rao, Vemulapalli Durga Nageswar · Inventors: Rao, Vemulapalli Durga Nageswar; Aimone, Michael George
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ignition system is disclosed for regenerating a particulate trap (40-400 cells per lineal inch) used to filter the exhaust gas of an internal combustion engine the particulate trap having an entrance face for receiving a gaseous flow therethrough. The system comprises: (a) flow guide means effective to direct a gaseous flow to such entrance face during filtration and during regeneration of the trap; (b) an open cell ceramic foam body (10-30) cells per lineal inch) extending across such flow guide means and having (i) a radially outer ring exit surface in contact with the radially outer portion of the entrance face, and (ii) an entrance throat remote from the particulate trap, the open …
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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 June 18, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 18, 2008.
- 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.