Method for contour recognition of totally or partly transparent objects, e.g. bottles
CA 1204866 A · Owner: A/S Tomra Systems · Inventors: Planke, Tore
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for contour recognition of completely or partly transparent objects (2), e.g. containers like glass or plastic bottles, said object being advanced through an illumination and detector station (3-13; 3 4, 20, 21) and, there being illuminated on at least part of its circumference. The light reflected by said object (2) is viewed by a detector (4,3) against a background that is dark relative to said object, and the viewed image is recorded and converted to pulse signals that are processed to yield a numerical code characteristic of the object. During recording distinct signals are generated which are characteristic of the width (bn) of the object relative its corresponding height (hn) …
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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 20, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 20, 2003.
- 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
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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.