Water blasting system with improved pressure control and method
CA 2290492 A1 · Owner: Dill, David W. · Inventors: Dill, David W.; Woodward, Michael J.; Elliot, Karl E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The high pressure system (10) is provided for outputting pressurized fluid to a source, such as a blasting gun (26). The system includes mechanical transmission (14) interconnecting a diesel engine (12) with a positive displacement pump (20). A programmable controller (30) is provided for receiving signals from a pressure transducer (34) and for controlling operation of an engine controller (44) a clutch controller (42), and a , transmission shifter (46) to obtain the desired fluid pressure level output from the pump. The controller preferably communicates by wireless transmission technology, so that the controller (30) may be exterior of a sound abatement enclosure (28) surrounding …
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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 19, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 19, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 2020.
- 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.