Improved turbine drive rotary spray cleaner
CA 2401725 A1 · Owner: Shawver, Doug · Inventors: O'Brien, Dan; Shawver, Doug; Schreuer, Ivan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spray cleaner (10) is provided for rotatingly cleaning an interior of a vessel or the like. The spray cleaner has a main body (12) and a rotating spray body (14). The main body is at a proximal end of the spray cleaner and , the rotating spray body is at a distal end of the spray cleaner. An internal flow conduit (22) in the main body of the rotating spray body communicates a fluid inlet in the main body to a plurality of spray nozzles (18) in at least one spray head which is a part of the rotating spray body. A drive train (30) for rotating the spray body is positioned in the main body such that the flow , conduit passes around the drive train in an annular passage coaxial with the …
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
- Filed March 13, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 13, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2023.
- 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.