Conveying, supporting and shaping glass sheets
CA 1290148 C · Owner: Libbey-Owens-Ford Co. · Inventors: Hagedorn, Floyd T.; Leflet, Herbert A. Jr.; Flaugher, Jeffrey R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of and apparatus for press bending glass sheets to a desired shape wherein heated glass sheets are advanced on a series of contoured conveyor rolls having arcuately curved central portions, into position above a press member of outline or ring-type construction. The press member includes a continuous peripheral shaping rail adapted to engage and lift the sheets from the conveyor rolls for pressing between complemental shaping surfaces. The end segments of the contoured rolls extend beneath the shaping rail and away from the glass sheets, and free-wheeling rollers are provided adjacent the shaping rail for supporting the end segments of the sheets while the shaping rail is in its …
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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 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 8, 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.