Combination crankcase gasket/baffle
CA 2063466 C · Owner: Bonde, Kevin G. · Inventors: Bonde, Kevin G.; Hall, Ronald L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved crankcase gasket for use in an, internal combustion engine with a vertical crankshaft, having web portions that substantially cover the oil sump. The construction of the crankcase gasket baffles oil thrown around the inside of the engine by mechanical turbulence and prevents excess oil from reaching the cylinder bore. Gasket material under the valve spring box drain operates as a check valve and eliminates the need for an expensive valve stem valve. Oil temperature is reduced with an increased ability for engine operation at greater angles of crankshaft tilt from vertical.
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 March 19, 1992 and granted October 5, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 19, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 2014.
- 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.