Optical cigarette end inspection device
CA 1048809 A · Owner: Amf Incorporated · Inventors: Benini, Fernando
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The device for the testing through optical inspection of the cigarette ends comprises two probes made of optical fibres, which probes are arranged orthogonally with respect to each other. A first probe inspects the end surface of the cigarette being tested by directing against the said end surface a beam of light, and picking up the light reflected the intensity, of which depends from the end surface itself and from the distance of said end surface with respect to the said first probe. A second probe inspects a portion of the side surface of the cigarette comprising also the end being tested, by directing against the side surface a beam of light which provides for an inspection field of …
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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 February 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 20, 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.