Densitometer
CA 2267886 A1 · Owner: Marcum Fuel Systems, Inc. · Inventors: Foster, James; Miller, Charles E.; Smith, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A densitometer (10) includes a gas sample plenum (40) that is connected to a gas supply pipe (26) via a flow-restricted inlet duct (42) to at least partially isolate and damp the sample plenum (40) from shocks and noises turbulences, and abrupt pressure changes in the gas supply. A cantilevered vane (110) is positioned in the sample plenum (40) for gas density determinations on the principle that resonant frequency of the vane (110) is a function of the density of the gas in the sample plenum (40). The resonant frequency of the vane (110) in the gas is determined by applying a magnetic field generated by a driver assembly (120) against the vane (110) and detecting the resonant …
Read the whole patent
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
- Filed October 7, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 7, 2019.
- 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.