Apparatus to expand a laminating interlayer
CA 1050227 A · Owner: Ford Motor Company Of Canada · Inventors: Tomshany, Paul E.; Gurta, Daniel J.; Koss, George A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for expanding a laminating interlayer is taught. The apparatus includes structure for stretching a heated web of laminating interlayer material between a cylindrical heating structure and a conical member in such a manner that a constant rectangular plane is defined in the space between the point at which the web leaves the cylindrical structure and the point at which it contacts the conical member. The stretching of the web occurs between these two points because the web engaging the larger end of the conical member is stretched to a greater degree than the portion of the web engaging the smaller end of the conical member as the different ends of the conical member are moving …
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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 March 13, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 1996.
- 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.