Spray bars for metal rolling and in flow control valves
CA 1072375 A · Owner: Almo Manifold And Tool Company · Inventors: Courson, Richard B.; Piontkowski, Henry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improvement in a spray bar for metal rolling having a body and a plurality of spray nozzles carried thereon a flow, control valve for the spray bar for controlling the flow of liquid through the nozzles, the valve having a valve body and a valve spool reciprocable in the valve body a liquid passage, in the spray bar, the valve arranged in respect to the spray bar so that a portion thereof extends across the passage and liquid enters the valve from the passage a yieldable member, operative upon the valve spool for biasing it into its closed position, the improvement comprising a moveable member arranged in respect to the spray bar for controlling the movement of the valve spool, an …
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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 26, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 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.