Graphic arts t-bar razor
CA 1056297 A · Owner: Simpson, Robert · Inventors: Simpson, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a tool for cutting film or cardboard it is known that, a guillotine or industrial razor blade has been established as the method of cutting, and that mechanisms without power are marketed for manual steel rule cutting on top of the artwork. In this invention the severing action of a 2000 r.p.m. motor driven circular razor, and the perfectly straight guidance of a fluorocarbon bearing carriage across a rigid transverse T-bar set at a maintained height above a table platform makes heavy cuts, without twisting or skewing and without clamping. The design incorporates a slide that lifts and lowers to manipulate the inside bevelling of matboard. Interchangeable with the razor arbor is a small …
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 June 12, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 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.