Vacuum lift device for side handling of paper rolls
CA 1207710 A · Owner: Rasmussen, Rolf B. · Inventors: Rasmussen, Rolf B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vacuum lift clamp device or sidehandling of one or two paper rolls (21), for use in connection with ordinary fork lift trucks equipped with vacuum pump device (23) and, having a curved carrying plate (1,2,3) e.g. of steel supporting the vacuum pad (6) which has a rubber sealing member in front for vacuum tight engagement against the paper roll, consists of three curved parts hinged together by means of two vertical hinges for adapting the vacuum pad positively to various roll diameters, the weight of the paper roll being carried by means of a horizontal rolling ball system (7,26,27,28,34) located at the upper rear side of the curved centre pad plate (2) and partly connected thereto and …
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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 15, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 15, 2003.
- 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.