Mechanism for effecting interlock of multiple sheet continuous business forms
CA 1077539 A · Owner: Clifton, Kenneth C. · Inventors: Gladow, Dean E.; Clifton, Kenneth C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A highly efficient shear-cutting, multiple, die apparatus and method for interlocking elongated multiple-sheet glued webs such as business forms or computer print out paper during fabrication thereof is provided which positively locks the web sheets against relative shifting an can occur when the web is zigzag folding, in order to prevent "tenting" or permanent, glue-set misalignment between respective web plies at the fold lines thereof. The preferred apparatus includes individual, mated pairs of rotatably mounted transversely oriented, multiple-blade, pointed web-, shearing and deforming dies which are rotated to cooperatively engage, sheer-penetrate and deform a moving web to produce a …
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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 May 13, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 13, 1997.
- 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.