Process and device for applying marking lines to a web of mineral fibre containing a binding agent
CA 1302155 C · Owner: Stoyke, Reinhard · Inventors: Schlobherr, Horst-Werner; Stoyke, Reinhard; Zinn, Egon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process and device for applying marking lines to a web of mineral fibre containing a binding agent Markings are to be applied to the surface (41) of a web of mineral fibre (38), running at right angles to its longitudinal direction or the direction of travel. For this purpose a cylinder (1) is envisaged with, heating areas around the circumference corresponding in shape and position to the markings to be applied; these heating areas take the form of heating elements (26) which rotate at such a speed that the heating elements (26) or marking ribs (30) provided on the heating elements roll over the surface (41) of the web of mineral fibre (38) without slipping, as a result of the contact. The …
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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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
- 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.