Composite ceramic metal assembly and method of making
CA 1249751 A · Owner: Ford Motor Company Of Canada, Limited · Inventors: Hartsock, Dale L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An integrally cast composite piston assembly is disclosed which is effective to carry a ceramic plate in an iron based cap. The assembly comprises a cylindrical piston body, preferably of aluminum, having a crown top an annular crown side wall with an upper edge and an, annular undercut surface terminating the crown side wall. The undercut surface must make an angle with a plane extending perpendicular to the axis of the piston the angle being substantially equal to the arc tangent of H/R where H is the median distance of the undercut surface from the plane and R is the median radius of the undercut surface from the axis of the piston. The assembly further comprises the cylindrical …
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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 February 7, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 7, 2006.
- 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.