Apparatus and method for measuring the spacing between the cords of a fabric
CA 1296888 C · Owner: Mccarty, John R. · Inventors: Mccarty, John R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method for measuring the distance between center lines in pairs of cords located in a web of cords. A laser beam passes through an expander which enlarges the beam. The enlarged beam is directed by mirrors to a prism and cylindrical lens through a cube beam splitter to form a line of light. The prism cylindrical lens and beam splitter are mounted in a carriage. The carriage moves along a track which is orthogonal to the cords in the fabric with the fabric either being stationary or moving with respect to the track. The line of light is directed against the cords by a lens and the reflected light is collected by the cube beam splitter and converted by a electronic detector …
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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 March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
- 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.