Hydration means
CA 1302057 C · Owner: C.G. Bevan Associates Limited · Inventors: Bevan, Christopher G.; Hacking, Douglas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is concerned with an hydration means for wetting the exposed surface of a core void formed on the withdrawal of a core former from a construction panel comprising compacted gypsum or like particulate materials, and proposes the free suspension of a reciprocable spray head by a flexible small-bore tube through which a setting liquid is applied to the spray head from a cross-head with which the tube is connected in fluid flow relationship. If necessary the spray head may be weighted, whilst an apertured guide plate through which the tube passes may be provided above the upper limit of movement of the spray head.
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 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
- 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.