Continuous web supply apparatus
CA 1105435 A · Owner: Cary Metal Products, Inc. · Inventors: Tafel, Leonard I.; Engert, Caspar F.; Labarre, Robert E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for providing a continuous supply of web material to a web printer or other system. It is necessary to achieve this so that a printing operation for example, may, continue in uninterrupted fashion even as successive rolls of printing paper or other web material are depleted. The web material is fed from a first roll (36) supported in a feed position, and when the first roll is near depletion the leading, end of a second roll (36) is adhesively connected to the web of the first roll with that web then being severed. One belt drive means (48) is employed for rotating both the forward and rearward rolls so that these achieve the same speed for the connecting and severing …
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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 21, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 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.