Method of die casting a reducible core
CA 1197972 A · Owner: Outboard Marine Corporation · Inventors: Booy, Richard R.; Shebuski, Robert C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A die-cast core is formed by fabricating a die defining a cavity in which the core is formed and injecting under pressure a reducible material in a molten state into the cavity of the die thereby die casting the core. A preformed liner may be placed in the cavity of the die prior to the injection of the molten reducible material so, that after the injection, the liner is provided with a reducible die-cast core. The die-cast core can be used in fabricating various machine parts such as a cylinder block for an internal combustion engine.
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 December 17, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 17, 2002.
- 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.