Process of manufacturing a stamped ball joint housing with perimeter flange
CA 2081936 C · Owner: Tower Automotive Delaware, Inc. · Inventors: Vrana, John J.; Delbeke, Robert G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An integral stamped ball joint housing for use in a vehicle suspension system. The ball joint housing may be stamped as part of the suspension system control arm thereby forming an integral control arm or may be inserted into an aperture of the control arm. The ball joint housing is stamped from a single piece of raw steel stock to form the housing according to end specifications. The process of manufacturing the stamped on-piece ball joint housing includes sequentially drawing the parent material to form the basic ball socket and thereafter sizing the outer and inner diameters of the housing to the desired configuration.
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 November 2, 1992 and granted June 1, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 2, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 2, 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.