B - Operations – Transporting – 24 – C
Patent
B - Operations, Transporting
24
C
51/2, 51/6
B24C 7/00 (2006.01) B05B 7/14 (2006.01) B05B 7/32 (2006.01) E04F 21/12 (2006.01)
Patent
CA 1320643
ABSTRACT ABRASIVE BLASTING APPARATUS A method and apparatus for mixing separately- contained media such as would be used in a wet abrasive blasting operation comprises a receptacle (10) for a liquid/abrasive medium, a receptacle (11) for a liquid, and a delivery line (20) along which pressurised fluid is adapted to be fed. The receptacles (10, 11) communicate via pipes (22, 23) with the delivery line (20) so that the liquid and the liquid/abrasive medium are entrained by the pressurised fluid. The receptacles communicate with each other via a hole (14) to balance the fluid pressure system between them and a means (15, 19) is also provided to deliver pressurised fluid into at least one of the receptacles (10, 11) in order substantially to balance the fluid pressure system between the receptacles (10, 11) and the delivery line (20) and to facilitate outflow of the liquid/abrasive medium and the liquid into the entraining fluid. The method comprises entraining the separately-contained media such as liquid/abrasive medium and the liquid medium in a flow of pressurised fluid whilst simultaneously applying the pressurised fluid to the media in their receptacles (10, 11) in order to balance the fluid pressure system between the receptacles themselves and the receptacles and the delivery line and to assist their egress into the entraining flow.
563648
Davis Ronald
Nicholson Bruce
Gagemarch Limited
Gowling Lafleur Henderson Llp
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