Depleted roll unlatching of reserve roll for dispensing flexible sheet material
CA 1104528 A · Owner: Georgia-Pacific Corporation · Inventors: Schwemm, Gene; Deluca, Raymond F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dispenser for flexible sheet material to carry multiple rolls of material such as paper toweling with dispensing mechanism being provided to lead a web of material out of the dispenser to the user. While one roll is in an initial dispensing position a reserve roll is held latched in a reserve non-dispensing position with the latching being released by cam means upon sensing that the one roll is substantially depleted of sheet material whereupon the reserve roll moves to be driven in relation to the initial roll. While the remaining sheet material on the initial roll is withdrawn from the dispenser by the user the leading end of the sheet material on the reserve roll joins with such …
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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 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 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.