Fuel injector nozzle with preheat sheath for reducing thermal shock damage
CA 2278710 C · Owner: Texaco Development Corporation · Inventors: Brooker, Donald Duane
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The operating life of a fuel injector nozzle (10) for a gasifier is prolonged by shielding the fuel injector nozzle (10) with a preformed protective insulating sheath (70) before the fuel injector nozzle (10) is installed inside a preheated reaction chamber of the gasifier. The thermal insulating sheath (70) has low thermal conductivity and is placed around the fuel injector nozzle body. The thermal sheath (70) can also be positioned to cover a downstream end (16) of the fuel injector nozzle (10) that includes a nozzle portion (40). The thermal insulating sheath (70) is supported by ceramic rope solder or metal wire and is gradually consumable in the environs of the reaction chamber …
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 January 21, 1998 and granted October 1, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 21, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 21, 2020.
- 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.