Lantern with muffler
CA 2348095 A1 · Owner: Long, Richard · Inventors: Long, Richard; Den Hoed, Angela
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gas operated lantern includes a muffler assembly which promotes improved mixing of air and fuel allowing for quieter, operation. This may be particularly beneficial in gas operated lanterns having relatively short fuel delivery systems where, fuel and air may otherwise not be properly mixed before burning. The muffler assembly may include a flat disk having a plurality of openings disposed in a holder. As air and fuel flow through the disk, turbulence is created, mixing the air and fuel. The holder may be a venturi body and may include air holes for allowing air into the system.
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 May 15, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 15, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 15, 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.