Air filter having integrated sealing orifice
CA 2416888 A1 · Owner: Chittenden, Jonathan R. · Inventors: Gerhardt, Todd R.; Reineking, Jerry S.; Chittenden, Jonathan R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air filtration system (55) for an internal combustion engine wherein the air filter (56) has an exit orifice (64) for sealingly engaging the air intake duct (66) of a carburetor via a friction-fit. The friction-fit provides an integrated seal between the orifice (64) and duct (66). The friction-fit can be provided by a plurality of ridges formed along the interior surface of the orifice or by decreasing the cross-sectional area of the orifice. Decreasing the cross-sectional area of the orifice is accomplished by providing a plurality of stepped diameters of a bottom surface material or a surface that conically slopes inward towards the cavity. In addition the air filter can be , …
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 June 27, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 27, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 27, 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.