Flow sensing apparatus
CA 1204836 A · Owner: Basic American Industries, Inc. · Inventors: Webb, Charles E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flow sensing apparatus for providing an indication of the presence of an exiting flow stream from a coal processing plant cyclone includes a probe member disposed in the edge of the flow stream, an electronic sensing circuit cooperatively arranged with the probe member in order to provide either a high or a low level signal, depending upon whether the probe member is being contacted by the exiting flow stream or whether such contact is not being made. A display light is cooperatively arranged with the sensing circuit so as to flicker on and off as the exiting flow stream intermittently and irregularly contacts the probe member. The flickering of the display light indicating proper outlet …
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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 May 20, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 20, 2003.
- 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.