Patent Yard Sign in
Expired Canadian patentCanada

Laser shock processing

CA 1215298 A · Owner: Battelle Development Corporation · Inventors: Ford, Stephen C.; Clauer, Allan H.; Fairand, Barry P.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Abstract An improved method and an apparatus for altering properties in a solid target by using the radiation emitted by a high power pulsed laser to generate a short duration, high amplitude pressure pulse is directed at the front side of solid target to alter material properties. The front side of the solid target is covered with an overlay material that is transparent to laser light and, the back side is placed in direct contact with a trapping material having substantially the same acoustical impedance as the metal substrate. When the solid target is processed by the pulsed laser, the microstructure and the stress state of the target are altered in a predictable manner.

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 16, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 16, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 12, 1983
GrantedDecember 16, 1986
Term endedDecember 16, 2003
Patent numberCA 1215298 A
Classification (IPC)C21D7/00 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedMay 12, 1983Patent grantedDec 16, 1986Term endedDec 16, 2003

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.