Method and apparatus for pressure-driven ice blasting
CA 2446870 A1 · Owner: Universal Ice Blast, Inc. · Inventors: Visaisouk, Sam
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 substantially continuously producing a stream of ice particulates P for use in performing ice blasting work on a work object W. The present invention includes an extruder assembly (12) a blast nozzle (16), and ice-receiving line (14). The extruder assembly (12) includes a pressure vessel within which the ice particulates are formed under elevated pressure. The extruder assembly (12) further includes an ice discharge opening (36). The ice-receiving line (14) has a first end (40) adapted to receive a fluidizing gas from the pressurized air supply source and a second end (42) connected to the blast nozzle (16). The ice-receiving line (14) is in communication …
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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
- Filed May 10, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 10, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 2024.
- 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
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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.