System for determining the basis weight of cord reinforced tire fabric
CA 1257408 A · Owner: Honeywell-Measurex Corporation · Inventors: Hegland, Philip M.; Goss, John; Chase, Lee M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for determining the basis weight of cord reinforced tire fabric which involves the use of two radiation sources, for example a collimated x-ray beam and a beta ray source. One of the radiation sources and its corresponding sensor (e.g. the x-ray source) is used to determine the fractional area of the fabric not containing steel cords, while the other (e.g. the beta ray source) is used to measure the average attenuation of radiation passing through the fabric. Both sources and their corresponding sensors are movably mounted on a pair of beams which extend across the width of the fabric web. The source sensor assemblies continuously scan across the fabric width so that information …
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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 July 11, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 11, 2006.
- 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.