Water chilling plant
CA 1114628 A · Owner: Dosco Overseas Engineering Limited · Inventors: Jinks, Philip W.; Bourne, Peter D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mining machine provided with means for cooling the motors and other equipment provided on the machine for propelling the machine, said means comprising an electric motor, a refrigeration circuit including a compressor, a condenser and an evaporator and a water cooling circuit wherein water is pumped from a supply through cooling devices associated with the equipment to be cooled on the machine and through the evaporator of the refrigerant circuit. The evaporator is shown downstream of the cooling devices but could of, upstream. By providing an independent water cooling circuit, water normally used for dust suppression need only be sprayed-into the mine during mining operations and it is …
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 December 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 22, 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.