A device to monitor the prime of a chemical feed pump
CA 2377800 A1 · Owner: Lebreton, Gregory T. O. · Inventors: Lebreton, Gregory T. O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is a device used to monitor the prime of chemical feed pumps for a variety, of automated feed systems. This device is designed for though not restricted , to, use in, chemical feed systems that automatically apply non-flammable chemicals to industrial, systems such as boilers, cooling towers or waster water treatment programs. A sensor is, placed inline with the chemical feed tubing which delivers chemical to the requiring, process. This sensor detects the presence of a water based liquid and provides a "green, light" signal to system operators when chemical is present within the chemical feed, tubing. When the prime is broken within the chemical feed pump air enters …
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 March 13, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 13, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2024.
- 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.