Apparatus for cutting or scoring sheet material
CA 1058069 A · Owner: Pilkington Brothers Limited · Inventors: Duncan, Angus D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apperatus for cutting or scoring sheet material e.g. glass with rapid responses to irregularities in the surface of the sheet material and to commands to commence or interrupt a cutting or scoring operation, employs a fluid pressure actuated diaphragm device to impart movement to a cutting or scoring tool e.g. a cutting wheel, towards and away from the surface to be cut or scored, and means for controlling selectively the pressure acting on each side of the diaphragm. The tool may be supported and guided in a cutter head which incorporates the diaphragm device and which carries supporting means, such as a pair of wheels for, supporting the cutter head on the surface of the material when the …
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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 10, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 10, 1996.
- 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.