Emplacement of filter packs and seals for groundwater monitoring
CA 1314475 C · Owner: Boyle, Daniel R. · Inventors: Forconi, Romeo; Boyle, Daniel R.; Thibedeau, Russell J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE, Emplacement of Filter Packs and Seals for Groundwater Monitoring, INVENTORS, Daniel R. Boyle Russell J. Thibedeau, Romeo Forconi, ABSTRACT OF THE DISCLOSURE A method and apparatus for emplacement of dry particulate filter pack and seal material into a borehole to form a monitoring zone for groundwater monitoring which allows the material to be emplaced in dry form. The method involves inserting a tube into the borehole to a depth above a desired monitoring zone and consecutively injecting a first layer of seal material a layer of, filter material and a second layer of seal material while supplying gas to the tube to prevent groundwater from contacting particulate material while in …
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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 March 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 16, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.