Device for varying the opening between the welding element and the counter-welding element in packaging machines
CA 1290673 C · Owner: Sitma-Societa Italiana Macchine Automatique S.P.A. · Inventors: Ballestrazzi, Aris; Tassi, Lamberto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
DEVICE FOR VARYING THE OPENING BETWEEN THE WELDING ELEMENT AND THE COUNTER-WELDING ELEMENT IN PACKAGING MACHINES", Abstract, In machines for the continuous packaging of products inside a film of a plastic material, folded above said products, so as to form a continuous tubular wrapping a, device for changing the opening between the welding element and the counter-welding element makes it possible the operating distance between said elements to be changed as a function of the height of the products in course of packaging, thus ensuring the highest packaging speed for both low- and high-thickness products.
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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 October 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 2008.
- 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.