Means for moving a rotary knife in apparatus for cutting paper sheets or the like
CA 1108980 A · Owner: Will (E. C. H.) (G.M.B.H. & Co.) · Inventors: Aykut, Kurt
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
2195-16a, ABSTRACT OF THE DISCLOSURE, Apparatus for cutting a running web of paper or the like has a rotary disk-shaped first knife and a driven counterknife. The first knife is rotatable on a shaft which constitutes the piston rod of a double-acting pneumatic cylinder and piston unit. The cylinder of such unit is connected with a second piston rod forming part of a single-acting cylinder and piston unit. The control system for the two units includes a shutoff valve which can admit compressed air to the single-acting unit whereby the pressure in a first conduit which connects the source of compressed air with the single-acting unit rises when the second piston rod reaches an end position in …
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 September 15, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 15, 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.