Soil injection machine
CA 1057965 A · Owner: International Synthetic Rubber Company Limited (The) · Inventors: De Larosiere De Champfeu, Pierre J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A machine for the injection of liquid into the surface of soil comprises a sledge having a surface compacting base bounded by two runners, the lower surface of each runner being below the level of the compacting base. The base has a transverse slot dimensioned to receive a hollow pressurisable injection bar which has a lower face equipped with injection orifices, the lower face being flush with the compacting surface of the compacting base when the bar is in position. The machine is particularly useful for the injection of soil stabilising medium into soil whilst the soil is compacted. By this means it is possible to produce a compacted raised strip of soil which is smooth and stable and …
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
- Granted July 10, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 10, 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.