Method and mould for casting and compacting high-viscosity concrete into concrete blocks
CA 1205278 A · Owner: Oy Partek Ab · Inventors: Paakkinen, Ilmari
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and mould for casting and compacting a mix of high viscosity concrete to form a concrete block in a mould which has concrete mix confining walls including a pair of opposite walls. These opposite walls are pivoted back and forth while they are simultaneously and constantly held in parallel relationship with one another so as to cause successive parallel laminae of the concrete mix to be displaced with respect to one another resulting in compacting the concrete mix. `:: ':
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 June 3, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 3, 2003.
- 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.