Electronically controlled engraving machine
CA 1104414 A · Owner: Rolls-Royce Limited · Inventors: Aveyard, Sydney
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A marking or engraving machine comprises an intermittently operable tool adapted, when operated by energising means to produce a mark on a workpiece, translation means adapted to cause relative movement between the tool and the workpiece, and electronic control means controlling the energising means and the translation means. The electronic control means is adapted to control the translation means to cause the tool to follow a predetermined raster pattern over the workpiece surface and to control the energising means to cause the tool to operate intermittently to make marks at such points of its path as will cause the impression of the desired character to be built up from the sum of the …
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 July 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 1998.
- 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.