Unitized injector modified for ultrasonically stimulated operation
CA 2427671 A1 · Owner: Kimberly-Clark Worldwide, Inc. · Inventors: Gipson, Lamar Heath; Cohen, Bernard; Jameson, Lee Kirby
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ultrasonic fuel injector (31) for injecting a pressurized liquid fuel into the combustion chamber of an internal combustion engine that uses an overhead cam (27) for actuating the injector, includes an injector body and an injector needle. The injector needle (36) is disposed within the body (33) and includes a magnetostrictive portion (38) disposed in the region of the body defined by a ceramic wall (40), which is transparent to magnetic fields changing at ultrasonic frequencies. A wire coil (42) is wound around the outside surface of the ceramic wall and connected to a source of electric power (16) that is controlled to oscillate at ultrasonic frequencies during predetermined …
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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
- Filed December 6, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 6, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 6, 2023.
- 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.