Automated process for cold working holes
CA 1251061 A · Owner: Grumman Aerospace Corporation · Inventors: Kuless, Madeline A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
12, Title of the Invention: AUTOMATED PROCESS FOR COLD WORKING HOLES, Inventor: Madeline A. Kuless, ABSTRACT OF THE DISCLOSURE A method for cold working holes employs an automatic riveting machine that is fed with memory metal sleeves having an O.D. slightly smaller than a hole to be worked. mandrel is forced into the sleeve and plastically expands the sleeve in the hole thereby working the hole wall around the sleeve. The mandrel is withdrawn and the sleeve is thermally induced to return to its initial shape memory O.D. permitting removal of the shrunken sleeve from the work hole.
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 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 14, 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.