Apparatus for liquid coating thickness control, fluid nozzle and method of removing excess liquid coating from web edges
CA 1082912 A · Owner: National Steel Corporation · Inventors: Ernest, Robert T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A nozzle and associated apparatus for controlling the thickness of liquid coating on continuous webs which produces a thin jet of fluid for impingement across the width of moving web having a liquid coating thereon, the fluid in the portions of the jet on either side of the center of the nozzle having components of motion toward the edges of the web. One form of nozzle structure for achieving such lateral movement of the fluid issuing from the nozzle has a centrally positioned fluid inlet port to an inner plenum chamber, the port having a cross sectional area at least several times the cross sectional area of the nozzle orifice. Another form of nozzle structure …
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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 August 5, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 5, 1997.
- 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.