Abrasive blasting apparatus
CA 1320643 C · Owner: Gagemarch Limited · Inventors: Davis, Ronald; Nicholson, Bruce
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for mixing separatelycontained 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 …
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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 July 27, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 27, 2010.
- 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.