Method of forming reinforced box-section frame members
CA 1314133 C · Owner: Ti Automotive (Newco) Limited · Inventors: Cudini, Ivano G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Forming hollow, box-section, frame members which include localized reinforcement. The frame members are produced by fitting a sleeve about a tube, deforming the tube and sleeve to avoid the occurrence of pinching on closing of die sections about the deformed tube and sleeve in a sectional die, and then expanding the tube and sleeve in the die to form the hollow, box-section, frame member in which the sleeve is mechanically locked on an inwardly offset intermediate portion of the tube. The expansion is achieved by application of an internal pressure within the tube.
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 March 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 9, 2010.
- 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.