Device for stretching laminating interlayers
CA 1054323 A · Owner: Ford Motor Company Of Canada · Inventors: Koss, George A.; Gurta, Daniel J.
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 includes structure for feeding and heating a continuous web of interlayer material. The heated interlayer is fed from the heating structure to a cooling roll rotatably driven by a drive structure. The cooling roll is mounted adjacent the heating structure in a position in which the web may pass from the heating structure to the cooling roll through a gap in which the web is unsupported. The drive applied to the cooling roll is effective to apply a stretching force on the web in the unsupported gap to expand the web in a controlled manner. The cooling roll has a surface shape in its axial direction which is in the form of a gradually …
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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 May 15, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 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.