Fluid pressure sensing apparatus
CA 1063386 A · Owner: Cambridge Filter Corporation · Inventors: Goulet, Roger T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for permanent installation in a heating or air conditioning duct to sense total and static pressure of air flowing therethrough. A plurality of manifolds are arranged within the duct to sense total pressure at a number of selected locations in a transverse plane of the duct. The plurality of manifolds communicates with a connecting manifold either directly or through sensing tubes arranged axially within the manifold tubes. Static pressure is also sensed at a plurality of preselected locations in the duct and communicated to at least one additional manifold tube arranged within the duct. Total and static pressure are communicated through single openings in the duct well 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 October 2, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 2, 1996.
- 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.