Method and apparatus for determining a dimension of an article
CA 1282235 C · Owner: Broken Hill Proprietary Company Limited (The) · Inventors: Williams, Daryl N.; Van Hoek, Hendrik C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for determining dimension of an article such as the width or thickness of a plate or slab produced in a steel mill is disclosed. At least two cameras (10), (12) are used to view two points (A) and (B) of the slab. The two points (A) and (B) are displaced by a known distance such as the thickness of the slab or the arc of a corner radius of the slab and from the known relationship between the two points location in space of the points is determined to enable the-dimension of the article between the points to be calculated.
Read the whole patent
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 April 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 2, 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.