Screen for collection and distribution of process streams
CA 1162386 A · Owner: Uop Inc. · Inventors: Gillespie, George A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
IMPROVED SCREEN FOR COLLECTION AND, DISTRIBUTION OF PROCESS STREAMS" ABSTRACT, Screen for use in collecting and/or distributing process flow streams has profiled surface wires welded to channel-shaped support members and is preferably made by helically wrapping and welding a profiled surface wire around the elongated channel members which are rotated about the : screen axis to produce a cylindrical slotted screen which is then cut along a line parallel to its axis, flattened and either used flat or re-, rolled and welded at right angles to its original direction so that the channels form hoop-like supports. The channels are preferably apertured to such an extent that the total open area for …
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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 21, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 21, 2001.
- 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.