Fuel tank vent system
CA 1069782 A · Owner: Deere And Company · Inventors: Davis, Lewis K.; Lowin, Kenneth J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A tank vent system includes a turbo-charged internal combustion engine with accompanying fuel tank. The fuel tank is connected by conventional fuel line and fuel pump to supply fuel to the engine while the pressurized, turbo-charged air connection between the turbocharger and the engine is connected through a filter and a first orifice to the top of the fuel tank to supply filtered and pressurized air into the fuel tank as the fuel is pumped out for the engine. A second orifice between the first orifice and the fuel tank is provided to limit the pressure buildup in the fuel tank and relieve the pressure when the internal combustion engine is shut down.
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
- Granted January 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 15, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.