Process and apparatus for making a printing character matrix
CA 1102161 A · Owner: Bobst S.A. · Inventors: Nigg, Fritz; Risse, Jean-Claude
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for making a character matrix in phototypesetting comprises a rotary cylinder, the surface of which has a number of axially spaced, circumferential grooves. The cylinder includes rings fitted on its outer surface so as to overlap the lower edge of one groove and the upper edge of the adjacent groove. A photographic film strip is fitted within each groove. The photographic film strip is pressed axially against one side of the groove. The apparatus includes means for filtering the air flowing into the cylinder when the latter rotates. The cylinder is equipped with means holding it on a rotary driving device.
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 2, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 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.