Load supporting means and the formation thereof
CA 1108586 A · Owner: Rautenbach, Aletta C. · Inventors: Rautenbach, Jacobus J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A displaceable load supporting cell for supporting a load. The cell comprises at least one compacted layer of particulate material compacted under a pressure of at least 800 kPa. The cell has a height less than its minimum lateral dimension. The cell includes retaining means for retaining the particulate material in the layer, and restraining means associated with the layer to restrain lateral displacement of the particulate material under load. A method of forming the load supporting cell and a support pillar. The pillar comprises a stack of layers of particulate material compacted under a pressure of at least 800 kPa and each layer having restraining means associated therewith to restrain …
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 September 8, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 1998.
- 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.